C语言中条件表达式求最大值和最小值

 

1、最大值

#include <stdio.h>

int main(void)
{
    int a,b,c,d,m;
    puts("please input four integers.");
    printf("a = "); scanf("%d", &a);
    printf("b = "); scanf("%d", &b);
    printf("c = "); scanf("%d", &c);
    printf("d = "); scanf("%d", &d);
    
    m = a;
    if (m == b && m ==c && m ==d)
        puts("the integers are equal!\a");
    else
    {
        m = (m > b) ? m:b;
        m = (m > c) ? m:c;
        m = (m > d) ? m:d;
        printf("the larger integer is %d.\n", m);
    }
    return 0;
}

 

2、最小值

#include <stdio.h>

int main(void)
{
    int a,b,c,d,m;
    puts("please input four integers.");
    printf("a = "); scanf("%d", &a);
    printf("b = "); scanf("%d", &b);
    printf("c = "); scanf("%d", &c);
    printf("d = "); scanf("%d", &d);
    
    m = a;
    if (m == b && m == c && m == d)
        puts("the integers are equal!\a");
    else
    {
        m = (m < b) ? m:b;
        m = (m < c) ? m:c;
        m = (m < d) ? m:d;
        printf("the smaller integer is %d.\n", m);
    }
    return 0;
}