part2
#include <stdio.h> #include <stdlib.h> int main() { int number, max, min, n; n=1; printf("输入第%d个数: ", n); scanf("%d", &number); max = number; min = number; while(n<=4) { n++; printf("输入第%d个数: ", n); scanf("%d", &number); if(number>=max) max = number; else if(number<=min) min = number; } printf("最大数为: %d\n", max); printf("最小数为: %d\n", min); system("pause"); return 0; }
part3-1
# include<stdio.h> # include<math.h> int prime(int n); int main() { int i; int t; for(i=101;i<=200;i++) { if(prime(i)){ printf("%4d",i); t++;} } printf("101~200之间一共有%d个素数",t); return 0; } int prime(int n) { int k; for(k=2;k<=sqrt(n);k++) if(n%k==0) return 0; return 1; }
part3-2
#include<stdio.h> #include<math.h> int main(){ long int x,y,m,n; printf("Enter a number:"); scanf("%ld",&x); y=0,m=1; for(;x>0;) { n=x%10; if(n%2!=0) { y=y+n*m; m=m*10; } x=x/10; } printf("The new number is:%d",y); return 0; }
原文：https://www.cnblogs.com/xxy-blogs/p/11886487.html