#include<stdio.h>
int main(){
    int t;
    scanf("%d",&t);
    while(t--){
        char a,b;
        scanf(" %c %c",&a,&b);
        if(a>b)printf("%c<%c\n",a,b);
        else if(a<b)printf("%c>%c\n",a,b);
        else printf("%c=%c\n",a,b);
    }
    return 0;
}

A到Z的ASCII是递增的👀️ 👀️

#include <stdio.h>

int main ()

{

int n;

scanf("%d",&n);

getchar();

while(n--){

char a,b;

scanf("%c %c",&a,&b);

getchar();

int c=a-'0';

int d=b-'0';

if(c>d){

printf("%c<%c\n",a,b);

}else if(c==d){

printf("%c=%c\n",a,b);

}else if(c<d){

printf("%c>%c\n",a,b);

}

}

return 0;

}

#define _CRT_SECURE_NO_WARNINGS #include <stdio.h> int re(char ch) { return 'Z' - ch + 1;//Z的ascll码值为90，A到Z是65到90递增，例如A的位置，就可以用90-65+1=26来计算，这样到Z就是递减了 }

int main() { int t; char a, b; scanf("%d", &t); while (t--) { scanf(" %c %c", &a, &b); // 注意%c前的空格跳过空白字符 int A = re(a); int B = re(b); if (A > B) { printf("%c>%c\n", a, b); } else if (A < B) { printf("%c<%c\n", a, b); } else { printf("%c=%c\n", a, b); } } return 0; }