1、c语言中定义函数和调用函数(计算三个数中的最大值)

#include <stdio.h>

int max3(int a, int b, int c)
{
    int max = a;
    if (b > max)
        max = b;
    if (c > max)
        max = c;
    return max;
}

int main(void)
{
    int n1, n2, n3;
    puts("please input three integers!");
    printf("n1 = "); scanf("%d", &n1);
    printf("n2 = "); scanf("%d", &n2);
    printf("n3 = "); scanf("%d", &n3);
    
    printf("the max = %d\n", max3(n1, n2, n3));
    return 0;
}

 

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