实验三

#include <stdio.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<5) {
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);
return 0;
}

#include <stdio.h>
int main() {
 float number, max, min;int n;
    printf("输入第1个数:  ");
 scanf("%f", &number);
 
 max = number;
 min = number;
 for(n=2;n<=5;n++) 
     {
  printf("输入第%d个数: ", n);
     scanf("%f", &number);
     
  if(number>max) max = number;
  if(number<min) min = number;
      }
  
 printf("最大数为: %.0f\n", max);
 printf("最小数为: %.0f\n", min);

 return 0;

}

#include<stdio.h>
int main()
{
    int k=0,i,n;
    for(n=101;n<=200;n++)
    {
       for(i=2;i<=n;i++)
       {
        if(n%i==0)
          break;
        }
        if(i==n) 
        { 
          k++;
          printf(" %d ",n);
        } 
    }
    printf("101~200之间共有%d个素数\n",k);
    return 0;
}

#include<stdio.h>
const int N=5;
int main()
{
     int line,col;
     for(line=1;line<=N;line++){
         for(col=N-line;col>0;col--)
         {
             printf(" ");
         }
         for(col=1;col<=2*line-1;col++)
         {
             printf("*");
         }
            printf("\n"); 
     }
     return 0;
 }