字符串运用

#include<bits/stdc++.h>
using namespace std;
int maxi(int a,int b){
	if(a>b) return a;
	if(a<b) return b;
	if(a==b) return a;
}
int cmp(int m,int n){
	if(m>n) return 1;
	if(m<n) return 3;
}
int main(){
	char a[100],b[100];
	cin.getline(a,100);
	cin.getline(b,100);
	int chan=maxi(strlen(a),strlen(b));
	for(int i=0;i<chan;i++){
		if((a[i]>='A' and a[i]<='Z') and (b[i]>='a' and b[i]<='z')){
			b[i]-=32;
			if(cmp(a[i],b[i])==1){
				cout<<">";
				return 0;
			}
			if(cmp(a[i],b[i])==3){
				cout<<"<";
				return 0;
			}
		}
		else if(a[i]>='a' and a[i]<='z' and b[i]>='A' and b[i]<='Z'){
			b[i]+=32;
			if(cmp(a[i],b[i])==1){
				cout<<">";
				return 0;
			}
			if(cmp(a[i],b[i])==3){
				cout<<"<";
				return 0;
			}
		}
		else{
			if(cmp(a[i],b[i])==1){
				cout<<">";
				return 0;
			}
			if(cmp(a[i],b[i])==3){
				cout<<"<";
				return 0;
			}
		}
	}
	cout<<"=";
	return 0;
}