[c语言] 调用函数实现求两个数中的最大值

#include<stdio.h>
int max(int x, int y)
{
int max = 0;
if (x < y)
{
max = y;
}
else
{
max = x;
}
return max;
}
int main()
{
int a, b, c;
int max(int x, int y);
printf("请输入两个整数\n");
scanf("%d %d", &a, &b);
c=max(a, b);
printf("max=%d", c);
system("pause");
return 0;

}