建议升橙
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建议升橙
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Baizhanbo20130828楼主2024/8/3 16:59
#include <bits/stdc++.h>

using namespace std; 
string s;
stack<int> a;
int main(){
	cin>>s;
	for(int i=0;i<s.size();i++){
		if(s[i]=='('){
			a.push(s[i]);
		}
		if(s[i]==')'){
			if(a.empty()){
				cout<<"NO"<<endl;
				return 0;
			}
			a.pop();
		}
	}
	if(a.empty()){
		cout<<"YES"<<endl;
	}
	else{
		cout<<"NO"<<endl;
	}
	return 0;
}//建议升橙
2024/8/3 16:59
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