1、C+程序设计源代码大全S2_1#includeusing namespace std;void main() float a,b,c; coutabc; if(a+bc)|(b+ca)|(a+cb) coutNot Trianglen; else coutTrianglen;S2_2#includeusing namespace std;void main() int year; coutyear; if(year%4=0&year%100!=0)|(year%400=0) coutyear is a leap yearn; else coutyear is not a leap yearn;
2、S2_3#includeusing namespace std;void main() float a1, a2; char oper; float result; int flag=0; couta1opera2; switch(oper) case+: result=a1+a2; break; case-: result=a1-a2; break; case*: result=a1*a2; break; default: cout输入错误的运算符!n; flag=1; if(flag=0) couta1opera2=resultendl;S2_4#include#includeusing
3、namespace std;void main() float a,b,c,x1,x2; coutabc; x1=(-b+sqrt(b*b-4*a*c)/2*a; x2=(-b-sqrt(b*b-4*a*c)/2*a; if(b*b-4*a*c0) cout无实根!n; else coutx1=x1endl; coutx2=x2endl;S3_1#includeusing namespace std;void main() int x,y; for(x=1;x=30;x+) for(y=1;y=30;y+) if(x+y=30&2*x+4*y=90) cout鸡有xn兔有yendl;S3_2#
4、includevoid main() int a0,a1,a2; int b; for(a2=1;a2=9;a2+) for(a1=1;a1=9;a1+) for(a0=1;a0=9;a0+) b=100*a2+10*a1+a0; if(b=a2*a2*a2+a1*a1*a1+a0*a0*a0) coutbendl; S3_3#includevoid main() int a0,a1,a2; int b; for(b=100;b=999;b+) a2=b/100; a1=(b/10)%10; a0=b%10; if(b=a0*a0*a0+a1*a1*a1+a2*a2*a2) coutbt; S
5、3_4#includevoid main() int a,b,c; for(a=1;a=36;a+) for(b=1;b=36;b+) for(c=1;c=36;c+) if(a+b+c=36&a*4+b*2+c/2=36&c%2=0) cout男人an女人bn小孩cendl;S3_5_1#includevoid main() int a; for(a=1;a=599;a+) if(a%10=5|(a/10)%10=5|(a/10/10)%10=5)&(a%3=0) coutaendl; S3_5_2#includevoid main() int a,b,c=0; couta; while(a
6、) b=a%10; c=c+b; a=a/10; coutcendl;S4_1#includevoid main() int a,b; int x,t; coutab; x=a*b; if(ab) t=a;a=b;b=t; while(t=a%b) a=b; b=t; cout最大公约数：bendl; cout最小公倍数：x/bendl;S4_2#includevoid main() int a, b,c; coutabc; for(int i=a;i-) if(a%i=0&b%i=0&c%i=0) break; coutiendl;S4_3#include#includevoid main(
7、) int a; couta; for(int i=2;isqrt(a);i+) if(a%i=0) break; if(a%i!=0) couta是素数n; else couta不是素数n;S4_4#includevoid main() int a,b,c,x; coutabc; for(x=a;x+) if(x%a=0&x%b=0&x%c=0) break; coutxendl;S4_5#includevoid main() int a; for(a=100;a=200;a+) for(int b=2;ba;b+) if(a%b=0) break; if(a=b) coutaendl; S
8、4_6# include using namespace std;int main () int n,i,sum; for(n=2;n1000;n+) /p=n/2; sum=0; for (i=1;in;i+) if (n%i=0) sum =sum+i; if (sum =n) cout nendl; return 0;S5_1#include void main() int a=2,b=1 ,c=0; for(;b=7;b+) c+=a; a=a*10+2; coutcendl; S5_2#include void main() int a=2,b=1 ,c=0; for(;b=7;b+
9、) c+=a; a=a*10+2; coutcendl; S5_3#include#include double x;int main() coutx; double y1,y2=x; do y1=y2; y2=2.0/3.0*y1+x/(3.0*y1*y1); while(fabs(y1-y2)=1e-5); cout y=y2endl; return 0;S5_4#includevoid main() float x; coutx;int n=1;float g=0; float t=x;do g+=t; n+; t=-t*x*x/(2*n-1)/(2*n-2);while(n=10);c
10、outgendl;S6_1includedouble abc(double x) double y; y=2*x*x+3*x+5;return y;void main() double a,b; a=abc(1); b=abc(1.2); couta=aendl; coutb=bendl;S6_2#include#includefloat f(float x)float y;y=x*x+3*x-4;return y;float df( float x)float y;y=2*x+3;return y;void main() float x0,x1; x1=0; do x0=x1; x1=x0-
11、f(x0)/df(x0); while(fabs(f(x0)=1e-5); coutx=x1endl;S6_3#include#includefloat f(float x)return x*x+3*x-4;void main() float x1,x2,x0; docoutx1x2;while(f(x1)*f(x2)0);do x0=(x1+x2)/2; if(f(x0)*f(x1)0) x1=x0; else x2=x0;while(fabs(f(x0)=1e-5);coutx=x0endl;S6_4#include#includefloat f(float x)return x*x+3*
12、x-4;void main() float x1,x2,x0; docoutx1x2;while(f(x1)*f(x2)0);do x0=(x1*f(x2)-x2*f(x1)/(f(x2)-f(x1); if(f(x0)*f(x1)0) x1=x0; else x2=x0;while(fabs(f(x0)=1e-5);coutx=x0endl;S7_1#includeint prime(int x) for(int i=2;ix/2;i+) if(x%i=0) return 0; return 1;void main() for(int x=100;x=200;x+) if(prime(x)=
13、1) coutxt; S7_2#includeint prime(int num)for(int i=2;inum/2;i+) if(num%i=0) return 0; return 1;void main() int n; coutn; for(int i=2;in/2;i+) if(n%i=0&prime(i)=1) coutit; coutendl;S7_3#includeint prime(int a)for(int i=2;ia/2;i+)if(a%i=0)return 0;return 1;void main()int n;docoutn;while(n%2!=0|n6);for
14、(int i=2;in/2;i+)if(prime(i)=1&prime(n-i)=1)coutn=i+n-in;coutendl;S7_4#includeint fun(int x)int a,b=1; while(x) a=x%10; b=b*a; x=x/10; return b;void main() int n,mul; coutn; while(n) mul=fun(n); coutn的各位数之积为mulendl; coutn; S8_1#includevoid main() int a6=9,8,7,6,5,4; int i,j,t; int n=6; for(i=0;in-1;
15、i+) for(j=0;jaj+1) t=aj; aj=aj+1; aj+1=t; for(i=0;in;i+) coutait; coutendl; S8_2#includevoid main() int a6=9,8,7,6,5,4; int i,j,min,t; int n=6; for(j=0;jn-1;j+) min=j; for(i=j;iai) min=i; t=amin; amin=aj; aj=t; for(i=0;in;i+) coutait; coutendl;S8_3#includevoid main() int a10=2,5,78,4,6,3,89,12,15,34
16、; int i,max; int n=10; max=0; for(i=0;iamax) max=i; coutmax=amax maxindex=max+1endl;S8_4#includevoid main() int a5=8,16,5,14,1; int i,j,n=5; for(i=0;in/2;i+) j=ai; ai=an-1-i; an-1-i=j; for(i=0;in;i+) coutait;S9_1#includevoid main() int i,j,row=0,colum=0,max; int a44=5,12,23,56,19,28,37,46,-12,-34,6,
17、8,4,6,34,1; max=a00; for(i=0;i4;i+) for(j=0;jmax) max=aij;row=i; colum=j;coutmax=max,row=row,colum=columendl;S9_2#includevoid main() int i,j,k; int colum,saddle,max,flag=0; int a44=5,12,23,56,19,28,37,46,-12,-34,-6,8,4,6,34,10; for(i=0;i4;i+) max=ai0; for(j=0;jmax) max=aij; colum=j; for(k=0;k4;k+) i
18、f(akcolummax) max=akcolum; if(akjmax) flag=1; saddle=max; break; if(flag=1) coutsaddle= saddle,row=i,colum=columendl; else coutNo Saddle!n;S9_3_1#includevoid main() int i,j,k,n=4; int a44=1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16; for(i=0;in;i+) for(j=i;jn;j+) k=aij;aij=aji;aji=k; for(i=0;in;i+) for(j=
19、0;jn;j+) coutaijt; coutendl;S9_3_2#includevoid main() int a99; for(int i=1;i=9;i+) for(int j=1;j=i;j+) ai-1j-1=i*j; for(int b=0;b9;b+) for(int c=0;c=b;c+) coutb+1*c+1=abct; coutendl; S9_4#includevoid main()int i,j,a1010=0;a00=a10=a11=1;for(i=2;i=9;i+)ai0=1;aii=1;for(j=1;j=9;j+)aij=ai-1j-1+ai-1j;for(
20、i=0;i=9;i+)for(j=0;j=i;j+)coutaijt;if(j=i)coutn;S10_1#includeint gys(int m,int n) int r; if(mn) r=m;m=n;n=r; while(r=m%n) m=n;n=r; return n;void main()int a8=26,1007,956,705,574,371,416,517;int b8=994,631,772,201,262,763,1000,781;int c8;for(int i=0;i8;i+)ci=gys(ai,bi);for(i=0;i8;i+)coutcit;coutendl;S10_2#include int fun(int x) int sum=0; while(x) sum+=x%10; x=x/10; return sum; void main() int a10,b10; int sum=0; cout请输入10个整数: n; for(int i=0;iai; for(i=0;i10;i+) bi=fun(ai); sum+=ai; coutsum=sumendl; for(i=0;i10;i+) coutaitbiendl; S10_3#includeint fun(int
