为什么我的代码没有给出正确的输出？谁能提供提示？

Question

所以基本上我写了这段代码来打印更大的数字，但它不起作用。我是 C 新手，这让我很困惑

#include <stdio.h> 
int greater(int a, int b); 
int main() 
{ 
int a,b,x;
printf("\n Enter two numbers:"); 
scanf("%d %d ",&a, &b); 
x=greater(a, b); 
printf("\n The greatest number is:%d", x); 
return 0;
} 
int greater(int x, int y) 
{  int great;
    if(x>y){
        great=x;
    }
    else 
    {
        great=y;
    }
    return great;
    
}```

Answer 1

问题是scanf后面的空格，切换到：

printf("\n Enter two numbers:"); 
scanf("%d %d",&a, &b);
x=greater(a, b); 

看看为什么：What is the effect of trailing white space in a scanf() format string?