仙女大哥的博客

/*在屏幕上输出一行信息 this is a C program.*/#include <stdio.h>int main(){ printf("this is a C program.\n"); return 0;}

/* 求 1-1/2+1/3-...+1/99-1/100的和*/#include <stdio.h>int main(){ int s; double i; float sum; s=1; sum=1.0; for(i=2;i<=100;i++) { s=-s; sum=s...

/* 判断2000-2100年中的每一年是否为闰年*/#include <stdio.h>int main(){ int year=2000; while(year<=2100) { if((year%4 ==0 && year%100 !=0) || year%400==0) pr...

/*输入a,b 求两个数中的较大者*/#include <stdio.h>int main(){ int a,b,c; scanf("%d %d",&a,&b); c=max(a,b); printf("the max number is %d.\n",c); return 0;}int max(int x,int...

/*输入a,b,c求三个整数中的较大者*/#include <stdio.h>int main(){ int a,b,c,d; scanf("%d %d %d",&a,&b,&c); d=max(a,b,c); printf("the max number is %d.\n",d); return 0;}...

/* 求n的阶乘*/#include <stdio.h>int main(){ int n,i,r,res; scanf("%d",&n); r=1; res=1; while(n>1) { res=n*(n-1); r=r*res; n=n-2; }...

/* 求两个整数之和*/#include <stdio.h>int main(){ int a,b,sum; a=3; b=4; sum=a+b; printf("sum=%d.\n",sum); return 0;}输出结果：sum=7.

/* 给出一个大于或等于3的正整数，判断他是不是一个素数*/#include <stdio.h>int main(){ int a,b; scanf("%d",&a); if(a>=3) { b=prime(a); if(b==1) printf("不是素数"); else printf("是素数"); return 0;...