Question

用C语言写一个很简单的程序，输入两个整数a,b,要求输入a-b的值，例如：输入7 4，输出3

Answer 1

#include<stdio.h>
main(){
int a,b;
printf("请输入A和B:");
scanf("%d%d",&a&b);
printf("a-b的差为:%d",a-b);
}

Answer 2

#include<stdio.h>
int main()
{
int a,b;
printf("请输入a和b的值：");
scanf("%d%d",&a,&b);
printf("a-b的值为：%d",a-b);

return 0;
}

Answer 3

#include<cstdio>
int main()
{
int a,b;
scanf("%d%d",&a,&b);
printf("%d",a-b);
return 0;
}