#include <stdio.h>
int main() {
    int number, max, min, n;
    
    n=1;
    printf("輸入第%d個數: ", n);
    scanf("%d", &number);
    
    max = number;
    min = number;
    
    while(n<5) {
        n++;
        printf("輸入第%d個數: ", n);
        scanf("%d", &number);
        
        if(max<number)
            max = number;
        else if(min>number)
            min = number;
    }
    
    printf("最大數為: %d\n", max);
    printf("最小數為: %d\n", min);
    
    return 0;
} 

#include <stdio.h>
int main() {
    int number, max, min, n;
    n=1;
    printf("輸入第%d個數: ", n);
    scanf("%d", &number);
    max = number;
    min = number;
    for(n=2;n<=5;n++){
        printf("輸入第%d個數: ", n);
        scanf("%d", &number);
        if(max<number)
          max=number;
        else if(min>number);
          min=number;
  }
    printf("最大數為: %d\n", max);
    printf("最小數為: %d\n", min);
    
    return 0;
} 

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

#include<stdio.h>
#include<math.h>
int main()
{
    int n,m,i,k;
    n=101;
    m=sqrt(n);
    i=2;
    k=0;
    for(n=101;n<=200;n++)
    {
    m=sqrt(n);
        for(i=2;i<=m;i++)
          if(n%i==0)
            break;
          if(i>m)
          {
            printf("%5d",n);
            k+=1;
            if(k%5==0)
            printf("\n");
          }
    }
    printf("\n"); 
    printf("100~200之間共有%d個數",k);
    return 0;
}