Submission #1117795

#	Time	Username	Problem	Language	Result	Execution time	Memory
1117795		vjudge1	괄호 문자열 (CEOI16_match)	C++14	0 / 100	1 ms	516 KiB

match

#include <bits/stdc++.h>
using namespace std;

#define endl '\n'
#define pb push_back
#define F first
#define S second
#define ll long long
#define int ll
#define pii pair<int, int>
#define io ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0)
#define M_PI 3.14159265358979323846
#define all(v) v.begin(), v.end()
#define pss pair<string, string>
#define no cout<<"No"<<endl;
#define yes cout<<"Yes"<<endl;
#define imp cout<<-1<<endl;
#define flu cout.flush();
#define Endl endl

const int N = 100009;
const int mod = 1e9+7;

map<int, int>lm, rm;

void solve(){
    string a;
    cin>>a;
    int n=a.size(), qwe=0, yx=0;
    string test="";
    stack<char>q;
    for(int i=0; i<n; i++){
        if(q.empty()){
            test=test+"(";
            q.push(a[i]);
            continue;
        }
        char fr=q.top();
        if(a[i]==fr){
            test=test+")";
            q.pop();
        }
        else{
            q.push(a[i]);
            test=test+"(";
        }
    }
    for(int i=0; i<n; i++){
        if(test[i]=='('){
            qwe++;
        }
        else{
            qwe--;
        }
        if(qwe<0){
            break;
        }
    }
    if(qwe<0 or qwe!=0){
        imp;
        return;
    }
    int l=0, r=n-1;
    string left="", right="";
    while(l<r){
        if(lm[a[l]]!=0){
            lm[a[l]]--;
            left=left+")";
        }
        else{
            lm[a[l]]++;
            left=left+"(";
            if(rm[a[l]]!=0){
                lm[a[r]]--;
                rm[a[r]]--;
            }
        }
        if(rm[a[r]]!=0){
            rm[a[r]]--;
            right="("+right;
        }
        else{
            rm[a[r]]++;
            right=")"+right;
            if(lm[a[r]]!=0){
                lm[a[r]]--;
                rm[a[r]]--;
            }
        }
        l++;
        r--;
    }
    cout<<left<<right<<endl;
}

signed main(){
    io;
    int t=1;
    //cin>>t;
    while(t--){
        solve();
    }
}

Compilation message (stderr)

match.cpp: In function 'void solve()':
match.cpp:29:28: warning: unused variable 'yx' [-Wunused-variable]
   29 |     int n=a.size(), qwe=0, yx=0;
      |                            ^~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 27
• Subtask 3: 0 / 63