2014c语言（分章节练习）

2.1.1显ホー・行文字/・显示一行文字“WelcometoCWorld!”的程序*/#include<stdio.h>main(){printf(nWelcometoCWorld!"); }2.1.2两个整数求和/・计算并显示两整数之和的程序・/#include<stdio.h>main(){inta,b,sum;/・变量声明・/printf("Inputfirstinteger");/*显示提示信息・/scanf("％d”，&a);/・读取ー个整数・/printf("Inputsecondinteger");/・显不提示信息・/scanf("%d"，&b);/・读取ー个整数・/sum=a+b;/・两数相加・/printf("Sumis%d”,sum);/*显示两数之和・/return0;/・返回〇表示程序成功地结束・/2.1算术运算#include<stdio.h>main(){printf(“Ll:40%%7=%d"，40%7);printf(uL2:40%7=%d"，40%7);printf(uL3:3.〇/-4.0+1.6*2.0/5.0二%f”，0/-4.0+1.6*2.0/5.0);printf(“L4:2/3*1000二%d"，2/3*1000);printf(“L5:2/3*1000二%f"，2/3*1000);printf(“L6:2/3*1000哪”，2/3*1000);printf("L7:2.0/3*1000二%f"，2.0/3*1000);printf(“L8:2f/3*1000二％f"，2f/3*1000);printf("L9:Sizeof3is%d”,sizeof(3));printf(uLIO:Sizeof3.0is%d"，sizeof(3.0));}2.2.2赋值运算#include<stdio.h>main(){intk,x,y;k=5;x=k++;/*后缀运算,先把k的值赋给x,然后k的值加1*/printfCL1:k二%d,x二%d〃,k,x);k=5;y二++k;/*前缀运算,先使k的值加1,然后将k的值赋给y*/printf(〃L2:k二%d,y二%d”,k,y);x=y二5;printf(〃L3:--xis%d,y--is%d〃,--x,y--);k=x=y=5;k=++x-++y;printf(，zL4:%d,%d,%d，z,k,x,y);k=++x+y++;printf(，zL5:%d,%d,%d〃,k,x,y);k=x一十—y;printf(，zL6:%d,%d,%d，z,k,x,y);kニーx+++y;printf(zzL7:%d,%d,%d〃,k,x,y);x=y二5;printf(，zL8:x+二x一二x*xis%d〃,x+二x一二x*x);printf(zzL9:y+=y一二y*二yis%d〃,y+二y一二y*二y);2.2.3printf中输出表列求值#include<stdio.h>voidmain(){inti=8;printf(，z%d,%d,%d,%d,%d〃,++i,—i,i-,i++,-i-)；}2.2.4交换两个变量的值#include<stdio.h>main(){inta,b,tern;printf("Inputintegeraandb");scanf("%d,%d",&a,&b);tem二a;a=b;b=tem;printf("a二％d,b二%d”,a,b);}2.2.5四舍五入#include<stdio.h>#include<math.h>main(){doublea,b;printf("Inputreala);scanf("%If",&a);b=floor(a*100+0.5)/100;printf(〃b=％.2f〃,b);重庆专升本计算机c语言程序设计辅导分支程序设计4.1.1求绝对值#include“stdio.h"main(){intx,y;scanf("%d",&x);if(x<0)y=一x;printf(“x二％d,|x|二%d”，x,y);}4.1.2显示三数中的奇数main()(intx,y,z;printf("inputx,y,z:");scanf(u%d,%d,%d”，&x,&y,&z);if(x%2)printf("%disoddnumber!”,x);if(y%2)printf("%disoddnumber!”,y);if(z%2)printf("%disoddnumber!”,z);4.1.3三数中取极值main(){inta,b,c,max,min;printf("inputa,b,c:");scanf("%d,%d,%d”，&a,&b,&c);max=a;if(b>max)max=b;if(c>max)max=c;printf("themaximumis:%d”,max);min=a;if(min>b)min=b;if(min>c)min=c;printf("theminimumis:%d”,min);4.2.1两数的比较#include”stdio.h"main(){intx,y;printf("inputx,y:");scanf("%d,%d",&x,&y);if(x>y)printf("themaximumis:%dv,x);elseprintf("themaximumis:%d”,y);4.2.2判定一数能否被另ー数整除main(){intx,y;printf("inputx,y:");scanf("%d,%dv,&x,&y);if(x%y)printf("NO");elseprintf("YES");4.3.1分段函数求解main(){intx,y;scanf("%d",&x);if(x>=0)if(x>0)y=x+l;elsey=x;elsey=x-l;printf(“x=%d,尸％d”，x,y);)4.3.2一元二次方程求解#include，zmath.h〃main(){floata,b,c,d,a2,xl,x2;printf(，zInputa,b,c〃);scanf(，z%f,%f,%fzz,&a,&b,&c);if(a=0)/・解一元一次方程・/{xl二一c/b;printf("root二％f〃,xl);/・输出一次方程根・/}else/・解一元二次方程・/d=b*b-4*a*c;a2=2*a;xl二一b/a2;if(d>=0){x2=sqrt(d)/a2;printf(，zrealroot:〃)；/・输出实根・/printf(，，rootl=%f,root2=%f〃,xl+x2,xl-x2);}else(x2=sqrt(-d)/a2;printf(，zcomplexroot:zz);/・输出复根・/printf(z，rootl=%f+%fi〃,xl,x2);printf(〃root2=%f-%fi〃,xl,x2);4.3.3闰年判断问题#include“stdio.h"main(){intyear,leap=O;/*leap=O:预置为非闰年・/printf(，zPleaseinputtheyear:");scanf("%d",&year);if(year%100!=0){if(year%4==0)leap=l;}else{if(year%400ニニ〇)leap=l;}if(leap)printf("%disaleapyear.",year);elseprintf("%disnotaleapyear.",year);}4.3.4显示学生成绩与等级main(){intx;printf("pleaseinputx(0く二xく二100):“)；scanf("%d"，&x);if(x>100||x<0)printf("x=％ddataerror!”,x);elseif(x>=90)printf("x=％disgradeA!”,x);elseif(x>=80)printf("x=%disgradeB!”,x);elseif(x>=60)printf("x二%disgradeC!”,x);elseprintf(へ二%。isgradeD!”,x);4.3.5个人所得税计算(1)用嵌套的if语句编写程序main()floats,m,t;printflpleaseinputtheincome:，z);scanf(〃%f〃,&s);s二sT600;if(s>100000)m=s-100000;t二m・0.45+20000*0.4+20000*0.35+20000*0.3+20000・〇.25+15000*0.2+3000*0.15+1500*0.1+50〇・〇.05;elseif(s>80000)]m=s-80000;t二m・〇.4+2000〇・〇.35+2000〇・〇.3+2000〇*〇.25+15000*0.2+3000*0.15+1500*0.1+50〇・〇.05;卜elseif(s>60000)(m=s-60000;t二m・〇.35+2000〇・〇.3+2000〇・〇.25+1500〇・〇.2+3000*0.15+1500*0.1+50〇・〇.05;}elseif(s>40000)m二s-4000〇;t二m・0.3+20000*0.25+1500〇・〇.2+3000*0.15+1500*0.1+500*0.05;)elseif(s>20000)(m二s-20000;t=m*O.25+15000*0.2+3000*0.15+1500*0.1+500*0.05;)elseif(s>5000){m=s-5000;t=m*O.2+3000*0.15+1500*0.1+500*0.05;}elseif(s>2000){m二s-2000;t=m*O.15+1500*0.1+500*0.05;elseif(s>500){m=s-500;t=m*O.1+500*0.05;}else(m=s;t=m*0.05;}printf(，zthetaxis:%7.2f〃,t);getchO;}(2)用switch语句编写程序main(){floatm,s,r;intt;printf(，zinputtheincome:z，);scanf(〃％f〃,&s);s=sT600;t=s/10000;switch(t){case〇:if(sく二50〇)(m二s・0.05;printf(/zthetaxis:%エ,m);}elseif(s<=2000)(s=s-500;m=s*0.1+50〇・〇.05;printf("thetaxis:%f",m);}elseif(s<=5000)(s=s-2000;m=s*O.15+1500*0.1+500*0.05;printf(，zthetaxis:%f〃,m);elseif(s<=10000)(s-s-5000;in二s・0.2+3000*0.15+1500*0.1+500*0.05;printf(z/thetaxis:%エ,m);}break;case1:s=s-5000;m二s・0.2+3000*0.15+1500*0.1+500*0.05;printf(z/thetaxis:%エ,m);break;case2:if(sニニ20000){s二s-5000;m二s・〇.2+3000*0.15+1500*0.1+50〇・〇.05;printf(zzthetaxis:%エ)in);case3:s=s-2000〇;m二s・〇.25+15000*0.2+3000*0.15+1500*0.1+500*0.05;printf(，zthetaxis:%f〃,m);break;case4:if(s==40000)(s二s-20000;m=s*O.25+15000*0.2+3000*0.15+1500*0.1+500*0.05;printf(，zthetaxis:%fzz,m);}case5:s=s-40000;m=s*O.3+20000*0.25+15000*0.2+3000*0.15+1500*0.1+500*0.05;printf(zzthetaxis:%fzz,m);break;case6:if(s==60000)s二s-4000〇;m二s・0.3+20000*0.25+15000*0.2+3000*0.15+1500*0.1+500*0.05;printf(，zthetaxis:%f〃,m);}case7:s=s-60000;m=s*0.35+20000*0.3+20000*0.25+15000*0.2+3000*0.15+1500*0.1+500*0.05;printf(，zthetaxis:%fzz,m);break;case8:if(s==80000){s=s-60000;m=s*0.35+20000*0.3+20000*0.25+15000*0.2+3000*0.15+1500*0.1+500*0.05;printf(zzthetaxis:%fzz,m);case9:s=s-80000;m=s・〇.4+20000*(0.35+0.3+0.25)+1500〇・〇.2+3000*0.15+1500*0.1+50〇・〇.05;printf(，zthetaxis:%f〃,m);break;}if(s=100000)(s=s-80000;m二s・〇.4+2000〇*(0.35+0.3+0.25)+1500〇・〇.2+3000*0.15+1500*0.1+50〇・〇.05;printf(，zthetaxis:%fzz,m);}else(s二sTOOOOO;m二s・〇.45+20000*(〇.4+0.35+0.3+0.25)+1500〇・〇.2+3000*0.15+1500*0.1+50〇・〇.05;printf(zzthetaxis:%fzz,m);重庆专升本计算机C语言程序设计辅导循环程序设计5.1.1累加和程序L应用for循环设计/*for循环求s=1*2+2*3+…99*100*/main(){longi,s;s二〇;for(i=l;i〈=99;i++)/・设置循环i=l,2,••,99*/s十二i*(i+l);/*把通项i*(i+l)累加到s中・/printf(〃l*2+2*3+…+99*100二%Id”,s);]程序2:应用while循环设计/*while循环求s=1*2+2*3+…+99*100*/main(){longi,s;i二1;s二〇;while(i<=99)/・设置循环i=1,2,…，99*/{s+=i*(i+l);i++;}/・把通项i*(i+l)累加到s中・/printf(“l*2+2*3+…+99*100二%Id",s);程序3I应用dowhile循环设计/*dowhile循环求s=l*2+2*3+・・・+99*100*/main(){longi,s;i=l;s=0;do{s+=i*(i+l)；i++；}/・把通项i*(i+l)累加到s中・/while(i<=99);/*设置循环i=l,2,…，99*/printf(〃l*2+2*3+…+99*100二%Id”,s);}5.1.2代数和/・求s=l-l/2+l/3T/4+•••-1/100*/main(){intk,n;floats=0;for(k=l;k<=100;k++)if(k%2=l)s+=1.0/k;/・应用分支实现符号一正ー负・/elses-=l.0/k;printf(〃s=%9.6f〃,s);5.1.3阶乘计算/・循环累乘求阶乘n!*/main(){inti,n;longt;scanf(〃%d〃,&n);t=l;/・积变量t赋初值1*/for(i=l;i<=n;i++)t=t*i;/・循环变量i累乘到t,体现阶乘运算・/printf(，z%d!=%ld〃,n,t);}/*递归求阶乘N!*/floatfac(n)intn;{longf;if(n==0)f=l;/・初始条件・/elsef=n*fac(nT);/・递归关系・/return(f);}main(){intn;longy;printflinputn:〃)；scanf(〃%d〃,&n);y=fac(n);printf1%d!二%Id,n,y);#include，zmath.h〃main(){inti,n=1000;floata,b,h,tl,t2,s,x;printf(〃请输入积分限a,b:〃);scanf(〃%f,%f”,&a,&b);h=(b-a)/n;for(s=0,i=l;i<=n;i++){x=a+(i-l)*h;tl=exp(-x*x/2);t2=exp(-(x+h)*(x+h)/2);s+=(tl+t2)*h/2;}/・梯形面积累加・/printf(〃梯形法算得积分值:%f.〃,s);}5.2.1百鸡问题main(){intx,y,z;for(x=l;x<=19;x++)for(y=l;y<=33;y++)for(z=l;zく=100;z++)if(z%3-0&&x+y+z—100&&5*x+3*y+z/3=100)printf(〃x=%d,y=%d,z=%d〃,x,y,z);/・同时满足时打印・/}5.2.2解Pel!方程/・解PELL方程:x^2-nyへ2=1.*/ttinclude<math.h>main(){intn,m,t;longa,x,y;printf(〃解PELL方程:x2-ny2=1.〃)；printf(〃请输入非平方正整数n:〃)；scanf(〃%d〃,&n);m=sqrt(n);if(m*m=n){printf(〃n为平方数,方程无正整数解!〃)；return;}printf(〃解PELし方程:x-2-%dyへ2=1〃,n);for(y=l;y<=10000;y++)/・实施穷举,约定10000内・/{a=n*y*y;x=sqrt(a+1);if(x*xニニa+1){printf(〃方程的基本解为:〃)；printf(，zx=%Id,y=％Id”,x,y);break;}})2.3牛顿迭代法解方程#include<math.h>floatsolut(a,b,c,d)floata,b,c,d;{floatx二1,xO,f,fl;do{xO二x;/*在循环中实施迭代*/f=((a*xO+b)*xO+c)*xO+d;fl二(3*a*x0+2*b)*xO+c;x二xO-f/f1;while(fabs(x-xO)>=le-5);return(x);}main(){floata,b,c,d;printf(，zinputa,b,c,d:〃)；scanf(〃％f,%f,%f,%f，z,&a,&b,&c,&d);printf(，zx二％10.6fsolut(a,b,c,d));5.2.4水手分椰子main(){intk,n;longx,y;printf(〃n=〃)；scanf(〃％d〃,&n);/*输入水手个数n*/for(x=n-l;x<1000000;x+=n-l){y=x；for(k=l;k<=n;k++){y二y/(n-l)*n+l;/・迭代求前ー个水手时的椰子*/if(y%(n-l)!=0)break;}if(k>n){y=y/(n-l)*n+l;printf(〃%d个水手分椰子,原有椰子至少有:%ld个.〃,n,y);for(k=1;kく=n;k++){printf(〃第%d个分:%ld=%d*%ld+l,〃,k,y,n,(yT)/n);y=(y-l)/n*(n-l);printf(〃分后剩余:%ld=%d*%ld〃,y,n-l,y/(n-l));}printf(〃最后一起分:%ld=%d*%ld+l，z,y,n,(y-l)/n);break;}}}5.3.1探求区间素数main(){longinta,b,k,t,j,n;n=0;printf(〃请输入区间:〃)；scanf(〃％ld,%ld，z,&a,&b);printf(〃[%ld--%ld]〃,a,b);for(k二a;kく=b;k++){t二〇;for(j=2;j<=k/2;j++)/・实施试商判别*/if(k%j==O)t=l;if(t==0)n++;}printf(〃n=%Id〃,n);}5.3.2梅森素数#include<math.h>main(){longintk,t,j,m,n,x;x=0;t=2;for(n=2;n<=30;n++){t*=2;k=t-l;m=0;for(j=3;j<=sqrt(k);j+=2)/・实施试商判别*/if(k%j-O)m=l;if(m-0){x++;printf(z，2%ld-l=%ld”,n,k);}}printf(，zx=%ld”,x);}5.3.3合数世纪#include<math.h>main(){longa,b,k;ints,x;for(a=21;aく20000〇;a++)/*在约定区间内穷举世纪・/{s=0;for(b=a*100-99;b<=a*100-1;b+=2)/・穷举每个奇数年号b*/{x=0;for(k=3;k<=sqrt(b);k+=2)if(b%k—0){x=l;break;}s=s+x;}/・年号b为合数时,x=l,s增1*/if(s==50)/*s=50,即有50个合数・/{printf(〃最早出现的合数世纪为:%Id世纪!〃,a);break;}}}5.3.4质因数分解/・质因数分解乘积形式・/#include，zmath.h〃main(){longintb,i,k,m,n,w=0;printf(〃［田,n］中整数分解质因数.〃)；printf(〃请输入m,n:〃);scanf(〃%ld,%ld〃,&m,&n);for(i=m;i<=n;i++)/*i为待分解的整数・/{printf(〃机d=〃,i);b=i;k=2;while(k<=sqrt(i))/*k为试商因数・/{if(b%k—0){b=b/k;if(b>l){printf(〃％ld・〃，k);continue;}/*k为质因数,返回・/if(b==l)printf(〃%ld〃,k);}k++;}if(b>l&&b<i)printf(/z%ld〃,b);/・输出大于i平方根的因数・/if(b==i){printf(〃(素数!)〃)；w++;}/*b=i,表示i无质因数・/}printf(〃其中共%d个素数.”,w);}5.4.1最大公约与最小公倍数main(){longinta,b,r,k;scanf(，z%ld,%ld〃,&a,&b);k=a*b;r=a%b;while(r>0){a=b;b=r;r=a%b;}/・实施辗转相除・/printf(〃最大公约数为:%ld〃,b);printf(〃最小公倍数为:%ld〃,k/b);}5.4.2水仙花数main(){inti,j,k,n;for(n=100;n<1000;n++){i=n/100;j=(n/10)%10;k=n%10;/・分离n各位数字i,j,k*/if(nニニi*i*i+j*j*j+k*k*k)/・检验是否符合条件・/printf(，z%d〃,n);}}5.4.3完全数#include"math,h"main(){intb,i,k,m,n,c[100];longa,s,x,y,d[100];printf(〃求区间[x,y]中的完全数.〃);printf(〃请输入整数x,y:〃);scanf(〃％ld,%ld”,&x,&y);printf(〃[%ld,%ld]中的完全数有:〃,x,y);for(a二x;aく二y;a++){s二1;n二〇;b二sqrt(a);for(k二2;k〈二b;k++)/・试商寻求a的因数k*/if(a%kニニ〇){s二s+k+a/k;n++;c[n]二k;d[n]=a/k;}/*a/k也是a的因数・/if(a==b*b){s=s-b;m=n-l;}/・若a=bへ2,去掉ー个b重复因数*/elsem=n;if(a-s){printf(/，%ld=r，,a);/*分两段从小到大打印因数之和・/for(i=l;i〈=n;i++)printf(〃+%d〃,c[i]);for(i=m;i>=l;i--)printf(〃+%ld〃,d[i]);if(a%2—l)printf(z,奇完全数!〃);printf(，Z〃)；})}5.4.4勾股数/・勾股数组・/#include“math,h”main(){longa,b,x,y,z,d,n=0;scanf(“％ld,%ld"，&a,&b);printf(“在[%ld,%ld]范围内,寻求勾股数组:")；for(x二a;xく=b-2;x++)/・设x〈y〈z,循环判别・/for(y=x+l;y<=b-l;y++){d=x*x+y*y;z=sqrt(d);if（dニニz*z&&z<=b）{n++;printf（u%ld,%ld,%ld”，x,y,z）;}}printf（"共有%Id组勾股数。"，n）;}5.4.5倍反序数main（）{intn,k,t,m,j二〇;for（n二!,000;nく二9999;n++）/*n穷举四位数・/{m二〇;t二n;for（k二］.;kく二4;k++）{m=m*10+t%10;t=t/10;}/・求四位数n的反序数m*/if（mニ二4*n）{j++;printf（〃％d",n）;}}printf（〃共%d个解.〃,j）;}5.5.1n个1整除问题main（）{inta,b,c,n;printf（uinputb=,J）;scanf（“刎"，&b）;n二4;c二1111;while(c!=0)/・余数为零时结束・/{a=c*10+1;c=a%b;n++;}/・模拟整数除法・/printf(，zn=%d”,n);}5.5.2尾数前移问题/・模拟除法求解尾数前移问题・/main(){inta,b,m,x,y,z;printf(〃把整数n的尾数a前移到n的最前面,〃);printf(〃其值为原n值的b倍,原数n记为n(a,b).、、printf(〃整数a,b满足:2くbWaく9〃);printf(〃请输入整数n的指定尾数a:〃)；scanf&a);/・输入处理数据・/printf(〃请输入尾数a前移后为n的倍数b:〃)；scanf(〃％d〃,&b);x=a/b;y=a%b;m=l;/*确定初始条件・/printf(〃n(%d,%d)=%d〃,a,b,x);while(y!=0||x!=a)/・递推试商处理・/{z=y*10+x;x=z/b;y=z%b;m++;/*模拟整数除法printf(〃%d〃,x);printf(〃共%d位。〃,m);}5.6.1金字塔main(){intn,k,m;printf(〃请输入金字塔的行数n:〃)；scanf(〃%d”,&n);for(k=l;k<=n;k++)/・控制循环n次,打印n行{for(m=l;m<=50-k;m++)printf("%c〃,32);/・每行先打印50-k个空格・/for(m=l;m<=2*k-l;m++)printf(〃％c〃,42);/・接着打印2kT个”*"*/printf(，Z〃)；)}5.6.2空心菱形#include<math.h>main(){intd,e,n,k,m;printf(〃请输入菱形的行数n(奇数):〃)；scanf(〃％d〃,&n);d=(n+l)/2;for(k=l;k<=n;k++)/・控制循环n次,打印n行*/{e=fabs(k-d);/・菱形上下对称,应用fabs(k-d)函数・/for(m=l;mく=e+45;m++)printf(〃％c〃，32);/*打印每行前面空格・/printf(〃祝〃，42);/・打印每行的前一个星号・/if(e<d-l){for(m=l;mく=2*(d-e)-3;m++)printf(〃紀〃,32);/・打印中间空格・/printf(〃%c〃，42);}/・打印中间各行的后一个星号・/printf(，Z〃)；)}6.3数字菱形#include<math.h>main(){intd,e,n,k,m;printf(〃请输入菱形的行数n(奇数):〃)；scanf("%d〃,&n);d=(n+l)/2;for(k=l;k<=n;k++)/・控制循环n次,打印n行{e=fabs(k-d);for(m=l;mく=2*e+45;m++)printf(〃％c〃,32);/*打印每行前的空格*/for(m=l;m<=d-e;m++)printf(〃％d〃,d-e);/・打印前d~e个数字・/if(e<d-l){for(m=0;m<=2*(d-eT)-2;m++)printf(〃%c〃,32);/*打印每行中空格・/for(m=l;m<=d-e;m++)printf(，，%d，，Jd-e);}/・打印后d-e个数字・/printf(，Z〃)；)重庆专升本计算机c语言程序设计辅导数组程序设计1.1Fibonacci数列/*Fibonacci数列递推求解・/main(){intk,n;longs,f[50];printf(〃求数列的第n项与前n项和,请输入n:〃)；scanf(〃%d”,&n);f[l]=l;f[2]=l;s=2;A数组元素与和变量赋初值・/for(k=3;k<=n;k++){f[k]=f[k-l]+f[k-2];/・实施递推*/s+=f[k];}/・实施求和・/printf(〃F数列第%d项为:％ld”,n,f[n]);printf("F数前%d项之和为:％ld",n,s);}1.2累序列/・幕序列程序・/main(){intk,n;longa,b,s,f[100];printf("求数列的第n项与前n项和,请输入n:");scanf("%d",&n);a=2;b=3;s=。;for(k=l;k<=n;k++){if(a<b){f[k]=a;a=a*2;}/・用2的幕给f[k]赋值*/else{f[k]=b;b=b*3;}/・用3的幕给f[k]赋值s+=f[k];}printf(〃数列的第%d项为:％ld”,n,f[n]);printf(〃数列的前%d项之和为数列〃,n,s);}3双关系递推数列/・双关系2x+l,3x+l递推・/main(){intn,i,j,h,m[1500];m[l]=l;scanf("%d",&n);for(i=l;i〈=n;i++){m[2*i]=2*m[i]+l;m[2*i+l]=3*m[i]+l;for(j=i+2;jく=2*i+l;j++){if(m[i+l]>m[j])/*m(i+l)与m(j)比较・/{h=m[j];m[j]=m[i+l];m[i+l]=h;}/・交换,使m(i+l)最小・/if(m[i+l]—m[j])m[j]=20000+j;}}/・置m(j)为一出界大数,以避免重复・/for(i=l;i<=n;i++){printf(，z%4d，z,m[i]);if(!(i%10))printf(〃〃)；}}6.1.4复杂递推数列/*2x+3y递推程序・/main(){intm,n,t,k,i,h,j,w,a[30000];printf(，zinput川:〃)；scanf(〃%d〃,&m);a[l]=l;a[2]=2;t=2;n=0;for(k=2;k<=m;k++){for(i=l;i<=k-l;i++){w=2*a[k]+3*a[i];if(w<=m&&a[k]!=a[i])a[++t]=w;/・判断w是否为递推项・/w=2*a[i]+3*a[k];if(w<=m&&a[k]!=a[i])a[++t]=w;}}/・判断w是否为递推项・/for(j=l;j<=m;j++){for(k=1;k〈=t;k++)if(a[k]==j){n++;printf(〃%4