AcWing 768. 忽略大小写比较字符串大小
#include<iostream>
#include<string.h>
using namespace std;
const int maxn=1e6;int main()
{char a[maxn],b[maxn];fgets(a,100,stdin);fgets(b,100,stdin);if(a[strlen(a)-1]=='\n')a[strlen(a)-1]=0;//去掉回车 if(b[strlen(b)-1]=='\n')b[strlen(b)-1]=0;for(int i=0;a[i];i++){if(a[i]>='A'&&a[i]<='Z'){a[i]+=32;}}for(int i=0;b[i];i++){if(b[i]>='A'&&b[i]<='Z'){b[i]+=32;}}int t=strcmp(a,b);if(t==0){puts("=");}else if(t<0 ){puts("<");}else{puts(">");}return 0;
}