C语言上机考试题库

1:2:3#include<stdio.h>#include<math.h>intmain(){inti=0,j=0,k=0,a=0,b=0,c=0,l=0,m=0,n=0,d=0,p=0,q=0;for(i=1;i<=3;i++){for(j=1;j<=9;j++){if(i!=j){for(k=1;k<=9;k++){if(k!=j&&i!=k){a=i*100+j*10+k;b=a*2;c=a*3;l=b%10,d=c%10;m=(b%100)/10,p=(c%100)/10;n=b/100,q=c/100;if(l!=0&&m!=0&&n!=0&&d!=0&&p!=0&&q!=0)if(i!=l&&i!=m&&i!=n&&j!=l&&j!=m&&j!=n&&k!=l&&k!=m&&k!=n)if(i!=d&&i!=p&&i!=q&&j!=d&&j!=p&&j!=q&&k!=d&&k!=p&&k!=q)if(l!=d&&l!=p&&l!=q&&m!=d&&m!=p&&m!=q&&n!=d&&n!=p&&n!=q)printf("%d%d%d\n",a,b,c);}}}}}return0;}8#include"stdio.h"intmain(){inta,b[10],m=0,n=0,p;inti,j,k;scanf("%d",&a);for(i=1;i<=a;i++){m=0;n=0;p=i;for(j=0;p!=0;j++){b[j]=p%10;p=p/10;}for(k=0;k<j;k++){m=m+b[k];if(b[k]==8){n=1;}}if(m%8==0){printf("%d",i);continue;}if(i%8==0){printf("%d",i);continue;}if(n==1){printf("%d",i);continue;}}return0;}8的次数A*B#include<stdio.h>#include<string.h>#include<stdlib.h>voidcheng(chara[],charb[]){inti,j,ca,cb,*s;ca=strlen(a);cb=strlen(b);s=(int*)malloc(sizeof(int)*(ca+cb));for(i=0;i<ca+cb;i++)s[i]=0;for(i=0;i<ca;i++)for(j=0;j<cb;j++)s[i+j+1]+=(a[i]-'0')*(b[j]-'0');for(i=ca+cb-1;i>=0;i--)if(s[i]>=10){s[i-1]+=s[i]/10;s[i]%=10;}i=0;while(s[i]==0)i++;for(;i<ca+cb;i++)printf("%d",s[i]);printf("\n");free(s);}intmain(){chara[100],b[100];gets(a),gets(b);if(a[0]=='-'&&b[0]!='-'){printf("-");cheng(&a[1],b);}elseif(a[0]=='-'&&b[0]=='-'){cheng(&a[1],&b[1]);}elseif(a[0]!='-'&&b[0]=='-'){printf("-");cheng(a,&b[1]);}elsecheng(a,b);return0;}N边形面积#include<stdio.h>#include<math.h>#definePI3.1415926intmain(){doubles,a;intn;scanf("%d%lf",&n,&a);s=a*a*n/(2*2*tan(PI/n));printf("%.2lf\n",s);return0;}参加竞赛#include<stdio.h>intmain(){inta,b,c,d,e;for(a=0;a<2;a++)for(b=0;b<2;b++)for(c=0;c<2;c++)for(d=0;d<2;d++)for(e=0;e<2;e++)if(((a==1&&b==1)||(a==0&&b==0))&&((b==0&&c==1)||(b==1&&c==0))&&((c==1&&d==1)||(c==0&&d==0))&&(!(d==0&&e==0))&&((e==1&&a==1&&d==1)||(e==0))){if(a==1){printf("A");}if(b==1){printf("B");}if(c==1){printf("C");}if(d==1){printf("D");}if(e==1){printf("E");}}return0;}草坪喷水插入排序#include<stdio.h>voidsort(inta[],intn){ inti; intk; intt; for(i=1;i<n;i++) { t=a[i]; k=i-1; while(t<a[k]){ a[k+1]=a[k]; k--; if(k==-1)break; } a[k+1]=t; }}intmain(){ intn; inta[100]; inti; scanf("%d",&n); for(i=0;i<n;i++) scanf("%d",&a[i]); sort(a,n); printf("\n"); for(i=0;i<n;i++) if(i==n-1) printf("%d\n",a[i]); elseprintf("%d",a[i]);return0;}查找车牌号#include<stdio.h>#include<math.h>intmain(){ inti,j,n; for(i=1;i<=9;i++){ for(j=0;j<=9;j++){ for(n=33;n<=100;n++){ if((n*n)==(i*1100+j*11))printf("%d",i*1100+j*11); } } } return0;}成绩转化乘完倒序尺子刻度大数除法大数减法#include<stdio.h>#include<string.h>#definemax(a,b)a>b?a:b#definemin(a,b)a>b?b:aintsum[101];voidjia(chara[],charb[]){intflag=0,i,len1,len2,lenmax,lenmin;len1=strlen(a),len2=strlen(b);lenmax=max(len1,len2),lenmin=min(len1,len2);for(i=1;i<=lenmax;i++){if(i<=lenmin){sum[lenmax-i]=a[len1-i]+b[len2-i]-'0'-'0'+flag;if(sum[lenmax-i]>=10){sum[lenmax-i]=sum[lenmax-i]-10;flag=1;}elseflag=0;}else{if(len1>len2){sum[lenmax-i]=a[len1-i]-'0'+flag;if(sum[lenmax-i]>=10){sum[lenmax-i]=sum[lenmax-i]-10;flag=1;}elseflag=0;}else{sum[lenmax-i]=b[len2-i]-'0'+flag;if(sum[lenmax-i]>=10){sum[lenmax-i]=sum[lenmax-i]-10;flag=1;}elseflag=0;}}}if(flag==1)printf("1");for(i=0;i<lenmax;i++)printf("%d",sum[i]);printf("\n");}voidjian(chara[],charb[]){intflag=0,i;intlen1,len2;len1=strlen(a),len2=strlen(b);for(i=1;i<=len1;i++){if(i<=len2){if(a[len1-i]-b[len2-i]-flag>=0){sum[len1-i]=a[len1-i]-b[len2-i]-flag;flag=0;}else{sum[len1-i]=a[len1-i]-b[len2-i]-flag+10;flag=1;}}else{if(a[len1-i]-flag-'0'>=0){sum[len1-i]=a[len1-i]-flag-'0';flag=0;}else{sum[len1-i]=a[len1-i]-flag+10-'0';flag=1;}}}for(i=0;i<len1&&sum[i]==0;i++);for(;i<len1;i++)printf("%d",sum[i]);printf("\n");}voidcompare(chara[],charb[]){intlen1,len2;len1=strlen(a),len2=strlen(b);if(len1>len2||(len1==len2&&strcmp(a,b)>0))jian(a,b);elseif(strcmp(a,b)!=0){printf("-");jian(b,a);}elseprintf("0\n");}intmain(){chara[100],b[100];gets(a);gets(b);if(a[0]=='-'&&b[0]!='-'){printf("-");jia(&a[1],b);}elseif(a[0]=='-'&&b[0]=='-')compare(&b[1],&a[1]);elseif(a[0]!='-'&&b[0]=='-')jia(a,&b[1]);elsecompare(a,b);return0;}大写变小写#include<stdio.h>#include<string.h>intmain(){chars[80];intlen,i;gets(s);len=strlen(s);for(i=0;i<len;i++){if(s[i]>='a'&&s[i]<='z')s[i]=s[i]-32; }puts(s);return0;}到底星期几等比数列#include<stdio.h>#include<stdlib.h>intmain(){intm,n,sum;scanf("%d",&m);for(n=1;;n++){sum=(3*n-1)*n/2;if(sum>m)break;}printf("%d",n);return0;}分数#include<stdio.h>intmain(){ intk,x=1,y=1; floata,b; scanf("%d",&k); for(;y<=5000;y++){ for(x=y;x<=5000;x++){ a=1.0/k;b=1.0/x+1.0/y; if(a==b)printf("1/%d=1/%d+1/%d\n",k,x,y); } } return0;}韩信点兵#include<stdio.h>intmain(){ intn,i; for(i=0;;i++){ if(i%5==2&&i%6==3&&i%7==4&&i%11==5){printf("%d",i);break;} } return0;}回文字符串#include<stdio.h>#include<string.h>#include<ctype.h>#defineMAXN5000+10charbuf[MAXN],s[MAXN];intp[MAXN];intmain(){intn,m=0,max=0,x,y;inti,j;fgets(buf,sizeof(s),stdin);n=strlen(buf);for(i=0;i<n;i++){if(isalpha(buf[i])){p[m]=i;s[m++]=toupper(buf[i]);}}for(i=0;i<m;i++){for(j=0;i-j>=0&&i+j<m;j++){if(s[i-j]!=s[i+j])break;if(j*2+1>max){max=j*2+1;x=p[i-j];y=p[i+j];}}for(j=0;i-j>=0&&i+j+1<m;j++){if(s[i-j]!=s[i+j+1])break;if(j*2+2>max){max=j*2+2;x=p[i-j];y=p[i+j+1];}}}for(i=x;i<=y;i++)printf("%c",buf[i]);printf("\n");return0;}#include<iostream>usingnamespacestd;intmain(){charA[5000],B[5000];inta=0,b,c,d,e,f,n=0,m,p,q,C[5000];while((A[a]=cin.get())!='\n')a++;for(b=0,c=0;b<=a-1;b++){if((A[b]>=65&&A[b]<=90)||(A[b]>=97&&A[b]<=122)){B[c]=A[b],C[c]=b;if(B[c]>=97&&B[c]<=122)B[c]=B[c]-32;c++;}}B[c]=32;for(d=0;d<=c-2;d++){if(B[d]==B[d+1])e=d,f=d+1,a=1;elseif(B[d]==B[d+2])e=d,f=d+2,a=1;elsecontinue;while(e-1>=0&&f+1<=c&&B[e-1]==B[f+1])e--,f++;m=f-e;if(m>n)n=m,p=e,q=f;}for(a=C[p];a<=C[q];a++)cout<<A[a];cout<<endl;}鸡的体重计算数据整数部分加密#include<stdio.h>#include<string.h>intmain(){ FILE*pi; pi=fopen("in.dat","w"); charA[1000],B[1000]; inti,n; gets(A); n=strlen(A); for(i=0;i<n;i++){ fprintf(pi,"%c",A[i]); if('A'<=A[i]<'Z'||'a'<=A[i]<'z') B[i]=A[i]+1; if(A[i]=='Z'||A[i]=='z') B[i]=A[i]-25; } for(i=0;i<n;i++) printf("%c",B[i]); fclose(pi); return0;}阶乘#include<stdio.h>intmain(){intn;inti=2;intj=1;scanf("%d",&n);while(1){j=j*i;if(j>n)break;i++;}printf("%d\n",i-1);return0;}卡片恐怖水母#include<stdio.h>voidpaixu(intA[],intm){inti=1,n=0,j=0;for(;j<m;j++){for(i=j+1;i<m;i++){if(A[i]<A[j]){n=A[j];A[j]=A[i];A[i]=n;}}}}intmain(){intn=0,m=0,A[100]={0},B[100]={0},i=0,j=0,k=0;scanf("%d%d",&n,&m);for(i=0;i<n;i++){scanf("%d",&A[i]);}for(i=0;i<m;i++){scanf("%d",&B[i]);}if(m<n){printf("NULL\n");}else{paixu(A,n);paixu(B,m);for(i=0;i<m;i++){if(A[0]<=B[i]){if(m-i>=n){for(k=0;k<n;k++){j+=B[i+k];}printf("%d\n",j);}else{printf("NULL\n");}break;}}}return0;}快速排序#include<stdio.h>voidQuickSort(intA[],intn,intL,intR){ inti,j,t; if(L<R){ i=L;j=R+1; while(1){ while(i+1<n&&A[++i]<A[L]); while(j-1>-1&&A[--j]>A[L]); if(i>=j)break; t=A[i];A[i]=A[j];A[j]=t; } t=A[L],A[L]=A[j],A[j]=t; QuickSort(A,n,L,j-1); QuickSort(A,n,j+1,R); } }intmain(){ intA[1000],n,i,j,p; scanf("%d",&n); if(n>=1000){printf("Overflow!!!");return0;} //输入要排序的元素的数目，若大于1000则结束程序输出“Overflow!!!” for(i=0;i<n;i++) scanf("%d",&A[i]);//输入元素 QuickSort(A,n,0,n-1); for(i=n-1;i>=0;i--) printf("%d",A[i]);//输出排序好的结果return0;}两人三足#include<stdio.h>intmain(){ intn,a[50],i,j,t,sum=0; scanf("%d\n",&n); for(i=0;i<n;i++)scanf("%d",&a[i]); for(i=0;i<n;i++){ for(j=0;j<n-i-1;j++){ if(a[j]<a[j+1])t=a[j],a[j]=a[j+1],a[j+1]=t; } } for(i=0;i<n;i+=2)sum+=a[i]; printf("%d",sum); return0;}逆序输出偶数和#include<stdio.h>#include<stdlib.h>intmain(){intn,i,sum=0;scanf("%d",&n);inta[n];for(i=0;i<n;i++){scanf("%d",&a[i]);}for(i=0;i<n;i++){if(i%2==0)sum=sum+a[i];} printf("%d",sum);return0;}三角形面积士兵移动输出位数#include<stdio.h>intmain(){inti,n;scanf("%d",&n);for(i=1;;i++){if(n/10==0)break;elsen=n/10;}printf("%d",i);}数列#include<stdio.h>intmain(){ intA[10],B[5],i;doubleC[5]; for(i=0;i<5;i++) scanf("%d",&A[i]); for(i=0;i<4;i++){ B[i]=A[i+1]-A[i];C[i]=(double)A[i+1]/A[i]; } if(B[0]==B[1]&&B[1]==B[2]&&B[2]==B[3]){ for(i=5;i<10;i++) A[i]=A[i-1]+B[0],printf("%d",A[i]);return0; }if(C[0]==C[1]&&C[1]==C[2]&&C[2]==C[3]){ for(i=5;i<10;i++) A[i]=A[i-1]*C[0],printf("%d",A[i]); return0; } if((A[0]+A[1]==A[2])&&(A[1]+A[2]==A[3])&&(A[2]+A[3]==A[4])){ for(i=5;i<10;i++) A[i]=A[i-1]+A[i-2], printf("%d",A[i]); return0; } printf("NULL"); return0;}数字加密数组元素和水仙花数提取字符串#include<stdio.h>#include<string.h>intmain(){ charA[100]; charl[100]; gets(A); intm,n,i,j; scanf("%d",&m); n=strlen(A); for(i=m;i<n;i++) { l[i]=A[i]; } for(j=m;j<n;j++) { printf("%c",l[j]); } printf("\n"); return0;}添加行号#include<stdio.h>#include<string.h>intmain(){ charA[3][100],B[3][100]; inti; FILE*fp; fp=fopen("b.c","w"); for(i=0;i<3;i++) gets(A[i]); fprintf(fp,"0001"); fputs(A[0],fp); fprintf(fp,"\n""0002"); fputs(A[1],fp); fprintf(fp,"\n""0003"); fputs(A[2],fp); fprintf(fp,"\n"); fclose(fp); printf("0001");puts(A[0]); printf("0002");puts(A[1]); printf("0003");puts(A[2]); return0;}舞伴配对相乘后位数相加#include<stdio.h>intmain(){intk;longa,b;scanf("%ld%ld",&a,&b);if(a==0||b==0)printf("0\n");else{k=(a%9)*(b%9)%9;if(k==0)printf("9\n");elseprintf("%d\n",k);}return0;}#include<iostream>usingnamespacestd;intmain(){charA[13],B[13];inta=0,b=0,c,d,e,f,m=0,X[13],Y[13];for(c=0;c<=12;c++)X[c]=0,Y[c]=0;while((A[a]=cin.get())!=32)a++;while((B[b]=cin.get())!='\n')b++;for(c=0,a--;a>=0;a--,c++)X[c]=A[a]-48;for(d=0,b--;b>=0;b--,d++)Y[d]=B[b]-48;for(e=0;e<=c-1;e++)for(f=0;f<=d-1;f++)m=m+X[e]*Y[f];while(m>10){a=m%10,m=(m-a)/10+a;}cout<<m<<endl;return0;}销售记录#include<stdio.h>#include<string.h>typedefstructtagME{chara0[5];chara1[11];chara2[20];inta3;inta4;}tag;intmain(){taga[100],b[100];intn,i,j=1,k=0;FILE*fp;scanf("%d",&n);for(i=0;i<=n-1;i++){scanf("%s%s%s%d%d",a[i].a0,a[i].a1,a[i].a2,&a[i].a3,&a[i].a4);}fp=fopen("out.dat","w");if(fp!=NULL){for(j=0;j<=n-1;j++){fscanf(fp,"%s%s%s%d%d",a[j].a0,a[j].a1,a[j].a2,&a[j].a3,&a[j].a4);}for(i=0;i<=n-2;i++){ if(a[i].a4>=a[i+1].a4)b[0]=a[i],a[i]=a[i+1],a[i+1]=b[0];}printf("%s%s%s%d%d",a[i].a0,a[i].a1,a[i].a2,a[i].a3,a[i].a4);fclose(fp);}return0;}星期几星座#include<stdio.h>intmain(){ inta,b; scanf("%d%d",&a,&b); switch(a){ case1:if(b<=19)printf("Capricorn"); elseprintf("Aquarius");break; case2:if(b<=18)printf("Aquarius"); elseprintf("Pisces");break; case3:if(b<=20)printf("Pisces"); elseprintf("Aries");break; case4:if(b<=20)printf("Aries"); elseprintf("Taurus");break; case5:if(b<=20)printf("Taurus"); elseprintf("Gemini");break; case6:if(b<=21)printf("Gemini"); elseprintf("Cancer");break; case7:if(b<=22)printf("Cancer"); elseprintf("Leo");break; case8:if(b<=22)printf("Leo"); elseprintf("Virgo");break; case9:if(b<=22)printf("Virgo"); elseprintf("Libra");break; case10:if(b<=22)printf("Libra"); elseprintf("Scorpio");break; case11:if(b<=21)printf("Scorpio"); elseprintf("Sagittarius");break; case12:if(b<=21)printf("Sagittarius"); elseprintf("Capricorn");break; } return0;}幸运数学号循环移位#include<stdio.h>intmove(intvalue,intn){if(n<0){n=-n;value=(value<<n|value>>(32-n));}elsevalue=(value>>n|value<<(32-n));return(value);}intmain(){intx,y;scanf("%d%d",&x,&y);printf("%d\n",move(x,y));return0;}月份天数#include<stdio.h>intmain(){inty,m,d;intA[13]={0,31,29,31,30,31,30,31,31,30,31,30,31};intB[13]={0,31,28,31,30,31,30,31,