程序设计-课后习题答案

1C1.1计算机程序1.2计算机语言CCCCC#include<stdio.h>intmain() printf("**************************\n\n"); printf("**************************\n");return0;}#include<stdio.h>intmain(){intprintf("pleaseinputa,b,c:\n");if(max<b)if(max<c)printf("Thelargestnumberis%d\n",max);return0;}第2章算法——程序的2.1算法用 S流程图表示算法C程序设计——CCprintf函数输出scanf函数输入 #include<stdio.h>#include<math.h>int{floatp,r,n;return0;}#include<stdio.h>#include<math.h>intmain(){floatr5,r3,r2,r1,r0,p,p1,p2,p3,p4,p5;//5//23//32//115//存活期存款。活期利息每一季度结算一次1方案得到的本息和234return0;}5#include<stdio.h>#include<math.h>intmain(){doubler5,r3,r2,r1,r0,p,p1,p2,p3,p4,p5; //一次存5年期 //先存2年期，到期后将本息再存3年期 //先存3年期，到期后将本息再存2年 //存1年期，到期后将本息存再存1年期，连续存5次 //存活期存款。活期利息每一季度结算一次 //输出按第1方案得到的本息和 //输出按第2方案得到的本息和 //输出按第3方案得到的本息和 //输出按第4方案得到的本息和 //输出按第5方案得到的本息和return0;}#include<stdio.h>#include<math.h>intmain(){floatr5,r3,r2,r1,r0,p,p1,p2,p3,p4,p5; //一次存5年期 //先存2年期，到期后将本息再存3年期 //先存3年期，到期后将本息再存2年 //存1年期，到期后将本息存再存1年期，连续存5次 //存活期存款。活期利息每一季度结算一次 //输出按第1方案得到的本息和 //输出按第2方案得到的本息和 //输出按第3方案得到的本息和 //输出按第4方案得到的本息和 //输出按第5方案得到的本息和return}#include<stdio.h>#include<math.h>intmain(){floatreturn}#include<stdio.h>intmain(){intreturn0;}#include<stdio.h>intmain(){inta,b;floatx,y;charc1,c2;scanf("a=%db=%d",&a,&b);scanf("%f%e",&x,&y);return0;}#include<stdio.h>intmain(){charc1='C',c2='h',c3='i',c4='n',c5='a';printf("passworis%c%c%c%c%c\n",c1,c2,c3,c4,c5);return0;}#include<stdio.h>intmain(){floath,r,l,s,sq,vq,vz;floatpi=3.141526;printf("请输入圆半径r，圆柱高 //要求输入圆半径r和圆柱高 // //计算圆面积 //计算圆球表面积 // //计算圆柱体积vz return0;}#include<stdio.h>intmain(){int //printf("ASCII码输出结果为:\n");return}#include<stdio.h>intmain(){char //int // //return0;}#include<stdio.h>intmain(){char //int //return0;}#include<stdio.h>intmain(){charprintf("putchar语句输出结果为:");printf("printf语句输出结果为:");printf("%c%c\n",c1,c2);return}4if用switch语句实现多分支选择结构#include<stdio.h>intmain(){intif(a<b)ifelseif(a<c)return0;}#include<stdio.h>intmain(){int /*a和btemp中 /*将a和bc比较,取最大者*/return}#include<stdio.h>#include<math.h>#defineM1000intmain(){intprintf("请输入一个小于%d的整数i:",M);while{printf("输入的数不符合要求，请重新输入一个小于%di:",M);}printf("%d的平方根的整数部分是：%d\n",i,k);return0;}#include<stdio.h>#include<math.h>#defineM1000intmain(){intprintf("请输入一个小于%d的整数i:",M);if{printf("输入的数不符合要求，请重新输入一个小于%di:",M);}printf("%d的平方根的整数部分是：%d\n",i,k);return0;}#include<stdio.h>intmain(){intprintf("输入 /*x<1{ y=x=%d\n"} /*1=<x<10{y=2*x- y=2*x-} /* {y=3*x- y=3*x-}return}#include<stdio.h>intmain(){intx,y;printf("enterx:");return0;}#include<stdio.h>intmain(){intprintf("pleaseenterx:");if(x>0)y=1; return0;}#include<stdio.h>intmain(){floatscore;charprintf("请输入学生成绩while{printf("\n输入有误,请重输}{casecase9:case8:case7:case6:casecasecasecasecasecase0:}printf("%5.1f,相应的等级是%c\n,score,grade);return0;}#include<stdio.h>#include<math.h>intmain(){intnum,indiv,ten,hundred,thousand,ten_thousand,place; if if(num>999) if if(num>9)elseplace=1;{case5:printf("%d,%d,%d,%d,%d",ten_thousand,thousand,hundred,ten,indiv);printf("\n反序数字为:");case4:printf("%d,%d,%d,%d",thousand,hundred,ten,indiv);printf("\n反序数字为:");case3:printf("%d,%d,%d",hundred,ten,indiv);printf("\n反序数字为:");case2:printf("%d,%d",ten,indiv);printf("\n反序数字为:");case1:printf("%d",indiv);printf("\n反序数字为:");}return}#include<stdio.h>intmain(){intdoublebonus,bon1,bon2,bon4,bon6,bon10; printf("i:");if(i<=100000)elseif(i<=200000)elseif(i<=400000)elseif(i<=600000)elseif(i<=1000000)printf("奖金是:%10.2f\n",bonus);return0;}#include<stdio.h>intmain(){int printf("i:");if(branch>10) casecase1:bonus=bon1+(i-100000)*0.075;break;case2:case3:bonus=bon2+(i-casecase5:bonus=bon4+(i-casecasecasecase9:bonus=bon6+(i-case10:bonus=bon10+(i-}printf("奖金是%10.2f\n",bonus);return0;}#include<stdio.h>intmain() if(a>b){t=a;a=b;b=t;}if(a>c){t=a;a=c;c=t;}if(a>d){t=a;a=d;d=t;}if(b>c){t=b;b=c;c=t;}if(b>d){t=b;b=d;d=t;}if(c>d){printf("排序结果如下 return0;}#include<stdio.h>intmain(){ floatx1=2,y1=2,x2=-2,y2=2,x3=-2,y3=-2,x4=2,y4=-printf("请输入一个点 if(d1>1&&d2>1&&d3>1&&d4>1) printf("该点高度为%d\n",h);return}5用while语句实现循环用do…whileforbreak语句提前终止循环用continue语句提前结束本次循环break语句和continue语句的区别#include#include<math.h> //fabsmath.nintmain(){int sign用来表示数值的符号,countdouble piπ的值nterm //term10的(-6){ //把当前项termpi n+2sign=- sign // count} //多项式的和pi乘以4，才是π的近似值 //输出π的近似值 //return}#include<stdio.h>intmain(){ printf("请输入两个正整数if(n<m){}{}return0;}#include<stdio.h>intmain(){charintletters=0,space=0,digit=0,other=0;{if(c>='a'&&c<='z'||c>='A'&&c<='Z')elseif(c=='')elseif(c>='0'&&c<='9')}printf("字母数:%d\n空格数:%d\n数字数:%d\n其它字符数:%d\n",letters,space,digit,other);return0;}#include<stdio.h>intmain(){ while(i<=n){n+a;/*tnia组成数的值*/sn=sn+tn;/*sni项之和*/}return0;}#include<stdio.h>intmain(){doubles=0,t=1;intn;for{}return}#include<stdio.h>intmain(){intdoublefor /*计算1100的和for /*计算150各数的平方和for /*计算110的各倒数和return0;}#include<stdio.h>intmain(){intprintf("parcissusnumbersare");for(n=100;n<1000;n++){if(n==i*i*i+j*j*j+k*k*k)printf("%d",n);}return0;}#defineM1000 #include<stdio.h>int{intk1,k2,k3,k4,k5,k6,k7,k8,k9,k10;inti,a,n,s;for /*a2-1000之间的整数，检查它是否完数 /*na /*s用来存放尚未求出的因子之和，开始时等于a*/for(i=1;i<a;i++) /*检查i是否a的因子*/if /*如果ia的因子/*n1s=s-/*s减去已找到的因子，s的新值是尚未求出的因子之和/*k1...k9k10{case/*1k1case/*2k2case/*3k3case/*4k4case/*5k5case/*6k6case/*7k7case/*8k8case/*9k9case/*10k10}}if{printf("%d,Itsfactorsareif /*n>1表示a2个因子if(n>2) 因子*/if(n>3) 因子*/if(n>4) 以下类似*/if(n>5) if if if if(n>9) }}return}#include<stdio.h>intmain(){intforforif((m%i)==0)s=s+i;{printf("%d,itsfactorsare",m);for(i=1;i<m;i++)if(m%i==0) printf("%d",i);}}return}#include<stdio.h>intmain(){intdoublea=2,b=1,s=0,t;for(i=1;i<=n;i++){}return0;}#include<stdio.h>intmain(){doublesn=100,hn=sn/2;intn;for{ /*第n次时共经过的米数*/ /*第n次反跳高度*/}printf("第10次时共经过%f米\n",sn);printf("10次反弹%f米\n",hn);return}#include<stdio.h>intmain(){ /*1212倍.*/}return0;}#include<stdio.h>#include<math.h>intmain(){floatprintf("enterapositivenumber:");}while(fabs(x0-x1)>=1e-printf("Thesquarerootof%5.2f is%8.5f\n",a,x1);return0;}#include#include<math.h> {doublex1,x0,f,f1;x1=x0-}while(fabs(x1-x0)>=1e-printf("Therootofequationis%5.2f\n",x1);return0;}#include<stdio.h>#include<math.h>intmain(){floatx0,x1,x2,fx0,fx1,fx2;{printf("enterx1&if((fx0*fx1)<0)}}}while(fabs(fx0)>=1e-5);return0;}#includeint{intfor{for(j=0;j<=2-i;j++)printf("");for(k=0;k<=2*i;k++)}for{for(j=0;j<=i;j++)printf("");for(k=0;k<=4-2*i;k++)}return}#include<stdio.h>intmain(){chari,j,k; /*ia的对手;j是b的对手;k是c的对手*/for(i='x';i<='z';i++)for(j='x';j<='z';j++)if(i!=j)for(k='x';k<='z';k++)if(i!=k&&j!=k)if(i!='x'&&k!='x'&&return0;}6怎样定义和一维数组怎样一维数组元素怎样定义和二维数组怎样二维数组的元素怎样字符数组中的元素#include<stdio.h>#include<math.h>intmain(){intfor(i=1;i<=100;i++)for(i=2;i<sqrt(100);i++)for{if(a[i]!=0&&a[j]!=0)if(a[j]%a[i]==0)}for{}}}return0;}#include<stdio.h>intmain(){inti,j,min,temp,a[11];printf("enterdata:\n");for(i=1;i<=10;i++)}printf("Theorginalnumbers:\n");for(i=1;i<=10;i++)forfor(j=i+1;j<=10;j++)if(a[min]>a[j])min=j;}printf("\nThesortednumbers:\n");for(i=1;i<=10;i++)return}#include<stdio.h>intmain(){inta[3][3],sum=0;inti,j;printf("enterdata:\n");for(i=0;i<3;i++)for(j=0;j<3;j++)for(i=0;i<3;i++)return}#include<stdio.h>intmain(){intprintf("arraya:\n");for(i=0;i<10;i++)printf("insertdata:");if(number>end){for{iffor}}}}printf("Nowarraya:\n");for(i=0;i<11;i++)return}#include<stdio.h>#defineN5int{inta[N],i,temp;printf("enterarraya:\n");for(i=0;i<N;i++)printf("arraya:\n");for(i=0;i<N;i++)for //循环的作用是将对称的元素的值互{temp=a[i];a[N-i-}for(i=0;i<N;i++)return}#include<stdio.h>#defineN int{inti,j,a[N][N];for(i=0;i<N;i++)}forfor(i=0;i<N;i++){for(j=0;j<=i;j++)}return0;}#include<stdio.h>intmain(){int{printf("entern(n=1--15):");if((n!=0)&&(n<=15)&&(n%2!=0))}forfor(j=1;j<=n;j++)forif((i<1)&&}{if(i<1)i=n;if(j>n)}if}}for{for(j=1;j<=n;j++)}return}#include<stdio.h>#defineN4#defineM5 /*45*/intmain(){inti,j,k,a[N][M],max,maxj,flag;printf("pleaseinputfor(i=0;i<N;i++) /*输入数组*/for(j=0;j<M;j++)for(i=0;i<N;i++) /*a[i][0]最大 /*将列号0赋给maxj保存*/for(j=0;j<M;j++) /*找出第i行中的最大数*/if /*将本行的最大数存放在max中*/ /*将最大数所在的列号存放在maxj中*/} /*先假设是鞍点，以flag1代表*/for(k=0;k<N;k++)if /*将最大数和其同列元素相比 /*maxflag10*/ /*flag11表示是鞍点 /**/}} /*如果flag0表示鞍点不存在*/printf("Itisnotexist!\n");return}#include<stdio.h> N15int{inti,number,top,bott,mid,loca,a[N],flag=1,sign;charc;printf("enterdata:\n");if(a[i]>=a[i-1])printf("enterthisdata}for(i=0;i<N;i++){printf("inputnumbertolookfor:"); //topbott=N- //bott是查找区间的最末位if((number<a[0])||(number>a[N-1])) //表示找不到while((!sign)&&ifprintf("Hasfound%d,itspositionis%d\n",number,loca+1);}elseif(number<a[mid])}if(!sign||loca==-printf("cannotfind%d.\n",number);;printf("continuornot(Y/N)?");scanf("if(c=='N'||c=='n')}return}#include<stdio.h>intmain(){intchartext[3][80];for(i=0;i<3;i++){printf("pleaseinputline%d:\n",i+1);for(j=0;j<80&&{if(text[i][j]>='A'&&text[i][j]<='Z')elseif(text[i][j]>='a'&&text[i][j]<='z')elseif(text[i][j]>='0'&&text[i][j]<='9')elseif(text[i][j]=='')}}printf("\nuppercase:%d\n",upp);printf("lowercase:%d\n",low); :%d\n",dig); :%d\n",spa); :%d\n",oth);return}#include<stdio.h>intmain(){chara[5]={'*','*','*','*','*'};inti,j,k;charspace='';for(i=0;i<5;i++){ for(j=1;j<=i;j++)for(k=0;k<5;k++)}return0;}#include<stdio.h>intmain(){intcharch[80],tran[80];printf("inputciphercode:");printf("\nciphercode while{if((ch[j]>='A')&&(ch[j]<='Z'))elseif((ch[j]>='a')&&(ch[j]<='z'))}printf("\noriginaltext:");for(j=0;j<n;j++)return}#include<stdio.h>intmain(){intcharprintf("inputciphercode:\n");printf("\nciphercode:%s\n",ch);while{if((ch[j]>='A')&&(ch[j]<='Z'))elseif((ch[j]>='a')&&(ch[j]<='z'))}printf("originaltext:");for(j=0;j<n;j++)return0;}#include<stdio.h>intmain(){chars1[80],s2[40];inti=0,j=0;printf("inputstring1:");printf("inputstring2:");while(s1[i]!='\0')printf("\nThenewstringis:%s\n",s1);return0;}#include<stdio.h>intmain(){intchars1[100],s2[100];printf("inputstring1:");printf("\ninputstring2:");while((s1[i]==s2[i])&&(s1[i]!='\0'))i++;if(s1[i]=='\0'&&s2[i]=='\0')

resu=s1[i]-return0;}#include<stdio.h>#include<string.h>intmain(){chars1[80],s2[80];inti;printf("inputfor(i=0;i<=strlen(s2);i++)return0;}7对被调用函数的和函数原型变量的方式和生存期动态方式与静态方式局部变量的类别全局变量的类别关于变量的和定义#include<stdio.h>intmain(){inthcf(int,int);intlcd(int,int,int);intu,v,h,l;return0;}inthcf(intu,int{intt,r;if(v>u)while((r=u%v)!=0)}intlcd(intu,intv,int{}#include<stdio.h>intHcf,Lcd;int{voidvoidlcd(int,int);intu,v;return0;}voidhcf(intu,int{intt,r;if(v>u)while((r=u%v)!=0)}}voidlcd(intu,int{}#include<stdio.h>#include<math.h>floatx1,x2,disc,p,q;intmain(){voidgreater_than_zero(float,float);voidequal_to_zero(float,float);voidsmaller_than_zero(float,float);floata,b,c;printf("inputprintf("equation:%5.2f*x*x+%5.2f*x+%5.2f=0\n",a,b,c);if(disc>0){}elseif}}return}voidgreater_than_zero(floata,float}voidequal_to_zero(floata,float{}voidsmaller_than_zero(floata,float{}#include<stdio.h>intmain(){intprime(int);intn;printf("inputaninteger:");ifprintf("%disaprime.\n",n);printf("%disnotaprime.\n",n);return0;}intprime(int{intfor(i=2;i<n/2&&flag==1;i++)if(n%i==0)}#include<stdio.h>#defineN3intarray[N][N];intmain(){voidconvert(intarray[][3]);inti,j;printf("inputarray:\n");for(i=0;i<N;i++)for(j=0;j<N;j++)printf("\noriginalarray:\n");for(i=0;i<N;i++){for(j=0;j<N;j++)}printf("convertarray:\n");for(i=0;i<N;i++){for(j=0;j<N;j++)}return}voidconvert(int{intforfor}}#include<stdio.h>#include<string.h>intmain(){voidinverse(charstr[]);charstr[100];printf("inputstring:");printf("inversestring:%s\n",str);return0;}voidinverse(char{chart;intfor(i=0,j=strlen(str);i<(strlen(str)/2);i++,j--}}#include<stdio.h>intmain(){voidconcatenate(charstring1[],charstring2[],charstring[]);chars1[100],s2[100],s[100];printf("inputstring1:");printf("inputstring2:");printf("\nThenewstringis%s\n",s);return0;}voidconcatenate(charstring1[],charstring2[],char{intfor(i=0;string1[i]!='\0';i++)}#include<stdio.h>intmain(){voidcpy(char[],char[]);charstr[80],c[80];printf("inputstring:");printf("Thevowellettersare:%s\n",c);return0;}voidcpy(chars[],char{intforif}#include<stdio.h>#include<string.h>intmain(){charvoidinsert(char[]);printf("inputfourdigits:");return}voidinsert(char{intfor(i=strlen(str);i>0;i--str[2*i-1]='}}#includeintletter,digit,space,others;intmain(){voidcount(char[]);chartext[80];printf("inputstring:\n");return0;}voidcount(char{intforif((str[i]>='a'&&str[i]<='z')||(str[i]>='A'&&str[i]<='Z'))elseif(str[i]>='0'&&str[i]<='9')elseif(str[i]==32)}#include<stdio.h>#include<string.h>intmain(){intalphabetic(char);intlongest(char[]);inti;charline[100];printf("inputoneline:\n");printf("Thelongestwordisfor(i=longest(line);alphabetic(line[i]);i++)return0;}intalphabetic(char{if((c>='a'&&c<='z')||(c>='A'&&c<='z'))}intlongest(char{intlen=0,i,length=0,flag=1,place=0,point;for(i=0;i<=strlen(string);i++)if(alphabetic(string[i]))if(flag)}if}}}#include<stdio.h>#include<string.h>#defineN10charstr[N];intmain(){voidsort(char[]);inti,flag;for{printf("inputstring:\n");ifprintf("stringtoolong,inputagain!");}printf("stringsorted:\n");for(i=0;i<N;i++)return}voidsort(char{inti,j;charfor(i=0;(i<N-j)&&(str[i]!='\0');i++)}}#include<stdio.h>#include<math.h>intmain(){floatsolut(floata,floatb,floatc,floatd);floata,b,c,d;printf("inputreturn0;}floatsolut(floata,floatb,floatc,float{floatx=1,x0,f,f1;}}#include<stdio.h>#defineN10#defineMfloatfloata_stu[N],a_cour[M];intr,c;int{intfloatfloats_var(void);floathighest();voidinput_stu(void);voidaver_stu(void);voidaver_cour(void); {printf("\nNO%2d",i+1);} for(j=0;j<M;j++) NO.%2d course%2d\n",h,r,c);printf("variance%8.2f\n",s_var());return}void{intfor{printf("\ninputscoreofstudent%2d:\n",i+1);for(j=0;j<M;j++)}}void{inti,j;floatfor{for(j=0,s=0;j<M;j++)}}void{inti,j;floatforfor(i=0;i<N;i++)}}float{floatinti,j;forforif}}float{intfloatsumx,sumxn;for}return(sumx/N-}#include<stdio.h>#defineN10#defineMfloatfloata_stu[N],a_cour[M];intr,c;int{intfloatfloats_var(void);floathighest();voidinput_stu(void);voidaver_stu(void);voidaver_cour(void); {printf("\nNO%2d",i+1);} for(j=0;j<M;j++) NO.%2d course%2d\n",h,r,c);printf("variance%8.2f\n",s_var());return}void{intfor{printf("\ninputscoreofstudent%2d:\n",i+1);for(j=0;j<M;j++)}}void{inti,j;floatfor{for(j=0,s=0;j<M;j++)}}void{inti,j;floatforfor}}float{floathigh;inti,j;forforif}}float{intfloatsumx,sumxn;for}return(sumx/N-}#include<stdio.h>#include<string.h>#defineN10int{voidinput(int[],charvoidsort(int[],charvoidsearch(int,int[],charname[][8]);intnum[N],number,flag=1,c;charname[N][8];while(flag==1){printf("\ninputnumbertolookfor:");printf("continueotnot(Y/N)?");if(c=='N'||c=='n')}return}voidinput(intnum[],char{intfor{printf("inputNO.:printf("inputname:");}}voidsort(intnum[],char{inti,j,min,templ;chartemp2[8];forif(num[min]>num[j]) strcpy(name[i],name[min]);}printf("\nresult:\n");for(i=0;i<N;i++)printf("\n}voidsearch(intn,intnum[],char{intif((n<num[0])||(n>num[N-1]))while((sign==1)&&ifprintf("NO.%d,hisnameis%s.\n",n,name[loca]);}elseif(n<num[mid])}if(sign==1||loca==-printf("%dnotbeen}#include<stdio.h>#defineMAX1000intmain(){inthtoi(chars[]);intc,i,flag,flag1;chart[MAX];printf("inputaHEXnumber:");while((c=getchar())!='\0'&&i<MAX&&flag1){if(c>='0'&&c<='9'||c>='a'&&c<='f'||c>='A'&&}elseif number%d\n",htoi(t));printf("continueornot?");if(c=='N'||c=='n')printf("\ninputaHEX}}}return}inthtoi(char{inti,n;for{if(s[i]>='0'&&s[i]<='9')if(s[i]>='a'&&s[i]<='f')if(s[i]>='A'&&s[i]<='F')}}#include<stdio.h>intmain(){voidconvert(intn);intnumber;printf("inputaninteger:");printf("output:");if{putchar('-');putchar(''); /*先输出一个‘-*/}return0;}voidconvert(int{intif((i=n/10)!=0)}#include<stdio.h>intmain(){intsum_day(intmonth,intday);intleap(intyear);intprintf("inputdate(year,month,day):");printf("%d/%d/%d",year,month,day); /*调用函数sum_day /*调用函数leap*/printf("isthe%dthdayinthisyear.\n",days);return0;}intsum_day(intmonth,int /*sum_day:{intintfor /**/ /*leap:intleap(int{intleap;}第8章利用指针怎样指针变量通过指针数组在数组元素时指针的运算通过指针数组元素通过指针字符串字符串的方式指针数组void#include<stdio.h>intmain(){voidswap(int*p1,int*p2);intn1,n2,n3;intprintf("inputthreeintegern1,n2,n3:");if(n1>n2)swap(p1,p2);if(n1>n3)swap(p1,p3);if(n2>n3)printf("Now,theorderis:%d,%d,%d\n",n1,n2,n3);return0;}voidswap(int*p1,int{intp=*p1;*p1=*p2;}#include<stdio.h>#include<string.h>intmain(){voidswap(char*,charcharstr1[20],str2[20],str3[20];printf("inputthreeline:\n"); printf("Now,theorderis:\n");return0;}voidswap(char*p1,char{charp[20];}#include<stdio.h>intmain(){voidinput(intvoidmax_min_value(int*);voidoutput(int*);intnumber[10];return}voidinput(int{intprintf("input10numbers:");for(i=0;i<10;i++)}voidmax_min_value(int{int*max,*min,*p,temp;for(p=number+1;p<number+10;p++)if(*p>*max)max=p;elseif(*p<*min)min=p;if(max==number)max=min;}voidoutput(int{intprintf("Now,they for(p=number;p<number+10;p++)printf("%d",*p);}#include<stdio.h>intmain(){voidmove(int[20],int,int);intnumber[20],n,m,i;printf("howmanynumbers?");printf("input%dnumbers:\n",n);for(i=0;i<n;i++)printf("howmanyplaceyouwantmove?");for(i=0;i<n;i++) return}voidmove(intarray[20],intn,int{int*p,array_end;for(p=array+n-1;p>array;p--*p=*(p-if(m>0)}#include<stdio.h>intmain(){intprintf("\ninputnumberof :n=");forwhile(m<n-{if(*(p+i)!=0) if(k==3)if(i==n)}while(*p==0)printf("ThelastoneisNO.%d\n",*p);return0;}#include<stdio.h>intmain(){intlength(char*p);intlen;charstr[20];printf("inputstring: printf("Thelengthofstringis%d.\n",len);return0;}intlength(char{intn;while}}#include<stdio.h>#include<string.h>intmain(){voidcopystr(char*,char*,int);intm;charstr1[20],str2[20];printf("inputstring:");printf("whichcharacterthatbegintocopy?");if(strlen(str1)<m)printf("inputerror!");}return}voidcopystr(char*p1,char*p2,int{intn;while(n<m-}while}}#include<stdio.h>intmain(){intupper=0,lower=0,digit=0,space=0,other=0,i=0;char*p,s[20];printf("input while((s[i]=getchar())!='\n')i++;while{if(('A'<=*p)&&elseif(('a'<=*p)&&elseif(*p=='')elseif((*p<='9')&&}printf("upper lower return0;}#include<stdio.h>intmain(){voidmove(int*pointer);inta[3][3],*p,i;printf("inputmatrix:\n");for(i=0;i<3;i++)scanf("%d%d%d",&a[i][0],&a[i][1],&a[i][2]);for(i=0;i<3;i++)printf("%d%d%d\n",a[i][0],a[i][1],a[i][2]);return0;}voidmove(int{intfor(i=0;i<3;i++)for(j=i;j<3;j++)}}#include<stdio.h>intmain(){voidchange(int*p);inta[5][5],*p,i,j;printf("inputmatrix:\n");for(i=0;i<5;i++)for(j=0;j<5;j++)for(i=0;i<5;i++){for(j=0;j<5;j++)printf("%d",a[i][j]);}return}voidchange(int{intint*pmax,*pmin;for(i=0;i<5;i++)for(j=i;j<5;j++){if(*pmax<*(p+5*i+j))pmax=p+5*i+j;if(*pmin>*(p+5*i+j))pmin=p+5*i+j;}forforif(((p+5*i+j)!=p)&&(*pmin>*(p+5*i+j)))pmin=p+5*i+j;for(i=0;i<5;i++)for(j=0;j<5;j++)if(((p+5*i+j)!=(p+4))&&((p+5*i+j)!=p)&&(*pmin>*(p+5*i+j)))pmin=p+5*i+j;forfor }#include<stdio.h>intmain(){voidchange(int*p);inta[5][5],*p,i,j;printf("inputmatrix:\n");for(i=0;i<5;i++)for(j=0;j<5;j++)for(i=0;i<5;i++){for(j=0;j<5;j++)printf("%d",a[i][j]);}return}voidchange(int //{intint*pmax,*pmin;for(i=0;i<5;i++) //找最大值和最小值的地址,并赋给pmax,pminfor(j=i;j<5;j++){if(*pmax<*(p+5*i+j))pmax=p+5*i+j;if(*pmin>*(p+5*i+j))pmin=p+5*i+j;} // //for(i=0;i<5;i++) //找第二最小值的地址赋给pminfor(j=0;j<5;j++){if(i==0&&j==0) (*pmin>*(p+5*i+j))} //for(i=0;i<5;i++) for(j=0;j<5;j++) &&j==0)||(i==0 &&j==4))continue;if(*pmin>*(p+5*i+j))pmin=p+5*i+j;} //for(i=0;i<5;i++) //找第四最小值的地址赋给pminfor(j=0;j<5;j++){if((i==0 &&j==0)||(i==0 &&j==4)||(i==4 &&j==0))continue;if(*pmin>*(p+5*i+j))pmin=p+5*i+j;} //}#include<stdio.h>#include<string.h>intmain(){voidsort(chars[][6]);inti;charstr[10][6];printf("input10strings:\n");for(i=0;i<10;i++)printf("Now,thesequenceis:\n");for(i=0;i<10;i++)return0;}voidsort(char{intchar*p,temp[10];forif}}#include<stdio.h>#include<string.h>intmain(){voidsort(char(*p)[6]);inti;charcharprintf("input10strings:\n");for(i=0;i<10;i++)printf("Now,thesequenceis:\n");for(i=0;i<10;i++)return0;}voidsort(char{intchartemp[6],*t=temp;for(i=0;i<9;i++)if}}#include<stdio.h>#include<string.h>intmain(){voidsort(char*[]);inti;char*p[10],str[10][20];for(i=0;i<10;i++)printf("input10strings:\n");for(i=0;i<10;i++)printf("Now,thesequenceis:\n");for(i=0;i<10;i++)return0;}voidsort(char{intcharforif}}intmain(){floatintegral(float(*)(float),float,float,int);//integarl函数的float //fsin函数的float //fcos函数的float //fexp函数的floata1,b1,a2,b2,a3,b3,c,(*p)(float);intn=20;printf("inputprintf("inputprintf("inputprintf("Theintegralofsin(x)is:%f\n",c);printf("Theintegralofcos(x)is:%f\n",c);printf("Theintegralofexp(x)is:%f\n",c);return0;}floatintegral(float(*p)(float),floata,floatb,int{intfloatx,h,s;}}floatfsin(float{returnsin(x);}floatfcos(float{returncos(x);}floatfexp(floatx){return#include<stdio.h>intmain(){voidsort(char*p,intintchar*p,num[20];printf("inputprintf("pleaseinputthesenumbers:\n");for(i=0;i<n;i++)printf("Now,thesequenceis:\n");for(i=0;i<n;i++)printf("%d",num[i]);return}voidsort(char*p,intm)n个数逆序排列函{intchartemp,*p1,*p2;for}}#include<stdio.h>intmain(){voidavsco(float*,floatvoidavcour1(char(*)[10],floatvoidfali2(charcourse[5][10],intnum[],float*pscore,floataver[4]);voidgood(charcourse[5][10],intnum[4],float*pscore,floataver[4]);inti,j,*pnum,num[4];floatscore[4][5],aver[4],*pscore,*paver;charcourse[5][10],(*pcourse)[10];printf("inputcourse:\n");for(i=0;i<5;i++)printf("inputNO.andscores:\n");for(i=0;i<5;i++)forfor(j=0;j<5;j++)} // //求出第一门课的平均成 //2 //return}voidavsco(float*pscore,float //{intfloatsum,average;for(i=0;i<4;i++)for }}voidavcour1(char*pcourse)[10],float //求第一课程的平均成绩的函{intfloatsum,average1;for printf("course1:%saveragescore:%7.2f\n",*pcourse,average1);}voidfali2(charcourse[5][10],intnum[],float*pscore,float//{int ==========Studentwhoisfailintwocourses======= printf("NO.");for(i=0;i<5;i++) for(i=0;i<4;i++)forif(*(pscore+5*i+j)<60.0)labe1++;if(labe1>=2)for(k=0;k<5;k++)}}}voidgood(charcourse[5][10],intnum[4],float*pscore,float//找成绩优秀学生(8590分以上){int ======Studentswhosescoreisgood======\n");printf("NO.");for(i=0;i<5;i++) for(i=0;i<4;i++)forif(*(pscore+5*i+j)>85.0)n++;if((n==5)||(aver[i]>=90))for(k=0;k<5;k++)}}}#includeint{charinti,j,k,m,e10,digit,ndigit,a[10],*pa;printf("inputastring:\n"); /*字符指针pstr置于数组str首地址*/ /*指针pa置于a数组首地址*/ /*ndigit代表有多少个整数*/ {if((*(pstr+i)>='0')&&(*(pstr+i)<='9')){if while /*for /*e10代表该位数所应乘的因子*/ /*位数K自增*/} /*a*/ /*paa数组下一元素*/}}}if /*以数字结尾字符串的最后一个数据 while /*将含有两位以上数的其它位的数值累加于for /*e10代表位数所应乘的因子*/ /*位数K自增*/} /*}printf("Thereare%dnumbersinthisline,theyare:\n",ndigit);for(j=0;j<ndigit;j++) printf("%d",*(pa+j));return0;}intmain(){intstrcmp(char*p1,char*p2);intm;charstr1[20],str2[20],*p1,*p2;printf("inputtwostrings:\n");return0;}intstrcmp(char*p1,char //{inti;if(*(p1+i++)=='\0') // //ASCII码的差}#include<stdio.h>intmain(){char*month_name[13]={"illegalmonth","January","February","March","April","May","June","july","August","September","October","November","December"};intprintf("inputmonth:\n");if((n<=12)&&printf("Itis%s.\n",*(month_name+n));printf("Itiswrong.\n");return0;}#include#defineNEWSIZE //char //char //定义指针变量newp，指向可存区的始char*new(intn) //定义开辟存区的函数new,开辟区后返回指{if //newbuf //newp指向区的末return(newp- //返回一个指针,它指向存区的开始位} //当存区不够分配时,}#include<stdio.h>#defineNEWSIZE1000charnewbuf[NEWSIZE];char*newp=newbuf;voidfree(char //存区函{if(p>=newbuf&&p<newbuf+NEWSIZE)}#defineLINEMAX20 intmain(){intcharfor /*将第i个字符串的首地址赋予指针数组pstr的第i个元素*/printf("input5strings:\n");for(i=0;i<5;i++)printf("stringssorted:\n");for(i=0;i<5;i++)}sort(char /*冒泡法对5个字符串排序函数{intcharfor{for{if /*比较后交换字符串地址}}}return}intmain(){voidsort(int**p,intinti,n,data[20],**p,*pstr[20];printf("inputn:\n");for //i个整数的地址赋予指针数组pstr的第i个元printf("input%dintegernumbers:",n);for(i=0;i<n;i++)printf("Now,thesequenceis:\n");for(i=0;i<n;i++) return0;}voidsort(int**p,int{intfor(i=0;i<n-{for{if //比较后交换整数地}}}}9结构体变量的初始化和链表用typedef新类型名#include<stdio.h>{intyear;intmonth;intday;int{intprintf("inputyear,month,day:");{case1:days=date.day; case2:days=date.day+31;break;case3:days=date.day+59;break;case4:days=date.day+90;break;case5:days=date.day+120;break;case6:days=date.day+151;break;case7:days=date.day+181;break;case8:days=date.day+212;break;case9:days=date.day+243;break;case10:days=date.day+273;break;case11:days=date.day+304;break;case12:days=date.day+334;}if((date.year%4==0&&date.year%100!=||date.year%400==0)&&date.month>=3) printf("%d/%disthe%dthdayin%d.\n",date.month,date.day,days,date.year);return0;}#include<stdio.h>{intyear;intmonth;intday;int{intintprintf("inputyear,month,day:");if((date.year%4==0&&date.year%100!=0||date.year%400==0)&&date.month>=3)printf("%d/%disthe%dthdayin%d.\n",date.month,date.day,days,date.year);return0;}#include<stdio.h>structy_m_d{intyear;intmonth;intday;int{int days(structy_m_ddate1);printf("inputyear,month,day:");printf("%d/%disthe%dthdayin} days(structy_m_d{intsum;{case1:sum=date1.day;break;case2:sum=date1.day+31;break;case3:sum=date1.day+59;break;case4:sum=date1.day+90;break;case5:sum=date1.day+120;break;case6:sum=date1.day+151;break;case7:sum=date1.day+181;break;case8:sum=date1.day+212;break;case9:sum=date1.day+243;break;case10:sum=date1.day+273;break;case11:sum=date1.day+304;break;case12:sum=date1.day+334;}if((date1.year%4==0&&date1.year%100!=0||date1.year%400==0)&&date1.month>=3)}#include<stdio.h>structy_m_d{intyear;intmonth;intday;}date;intmain(){intdays(intyear,intmonth,intday);intdays(int,int,int);intprintf("inputyear,month,day:");printf("%d/%disthe%dthdayin}intdays(intyear,intmonth,int{intintfor(i=1;i<month;i++)if((year%4==0&&year%100!=0||year%4==0)&&month>=3)}#include<stdio.h>#defineN5struct{charnum[6];charname[8];intscore[4];int{voidprint(structstudentstu[6]);inti,j;for{printf("\ninputscoreofstudent%d:\n",i+1);printf("NO.:");printf("name:");for(j=0;j<3;j++){printf("score}}return0;}voidprint(structstudent{int for(i=0;i<N;i++)for(j=0;j<3;j++)}}#include<stdio.h>#defineN5struct{charnum[6];charname[8];intscore[4];}int{voidinput(structstudentstu[]);voidprint(structstudentstu[]);return0;}voidinput(structstudent