c++基础练习——字符串对比

#include
#include
#include
using namespace std;

int main(){
	string s1,s2;
	int l=0,r=0;
	getline(cin,s1);
	getline(cin,s2);
	if(s1.length()!=s2.length()){
		cout<<1; 
	}else{
		for(int i=0;i<s1.length();i++){
			if(s1[i]==s2[i]){
				l++;
				r++;
			}else if(s1[i]-s2[i]==32||s2[i]-s1[i]==32){
				r++;
			}
		}
		if(l==s1.length()){
			cout<<2;
		}else if(r==s1.length()){
			cout<<3;
		}else{
			cout<<4;
		}
	}
	return 0;
}