格式错哪里了，希望指点一下

Question

题目：交换两个绝对值不超过1000的整数A,B的值

#include<stdio.h>

int main()
{
int A,B,T;
A>=-1000&&A<=1000;
B>=-1000&&B<=1000;
scanf("%d%d",&A,&B);
T=A;A=B;B=T;
printf("%d%d\n",A,B);
return 0;
}

Answer 1

#include <stdio.h>
int main()
{
    int a,b,t;
    scanf("%d %d",&a,&b);
    t = a;
    a = b;
    b = t;
    printf("%d %d",a,b);
    return 0;
}