oj.uz

답안 #1117790

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1117790 2024-11-24T08:27:01 Z vjudge1 괄호 문자열 (CEOI16_match) C++17
10 / 100
 368 ms 504 KB 
#include<bits/stdc++.h>

#define ll long long
#define pb push_back
#define in insert
#define fi first
#define se second
#define vl vector<ll>
#define all(v) v.begin(), v.end()
#define endl "\n"

using namespace std;
const int sz = 1e5 + 123; /// mind this
const int MAX = 2e6 + 123;
const int BS = 61;
const ll inf = 1e17;
const int mod = 998244353;
void solve(){
    string s;
    cin >> s;
    ll n = s.size(), i, j, k;
    ll cost[2] = {1, -1};
    string ans;
    for(i = 0; i < (1 << n); i++){
        bool valid = true;
        ll res = 0;
        for(j = n - 1; j >= 0; j--){
            if(i & (1 << j)){
                res --;
            }
            else{
                res ++;
            }
            if(res < 0){
                valid = false;
                break;
            }
        }
        if(res != 0){valid = false;}
        if(!valid){continue;}
        bool ok = 1;
        for(j = n - 1; j >= 0; j--){
            res = 0;
            valid = true;
            if((i & (1 << j))){continue;}
            for(k = j; k >= 0; k--){
                if(i & (1 << k)){
                    res --;
                }
                else{
                    res ++;
                }
                if(res < 1){
                    if((res == 0) && (i & (1 << k))){
                        ok &= (s[n - j - 1] == s[n - k - 1]);
                        if(!ok){
                            break;
                        }
                    }
                    valid = false;
                    break;
                }
            }
            if(!ok){break;}
        }
        if(!ok){continue;}
        break;
    }
    if(i == (1 << n)){
        cout << -1 << endl;
        return ;
    }
    // cout << i << endl;
    for(j = n - 1; j >= 0; j--){
        if(i & (1 << j)){
            ans += ')';
        }
        else{
            ans += '(';
        }
    }
    cout << ans << endl;

}
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    ll t = 1;
    // cin >> t;
    while(t--){
        solve();
    }
}

/*
10 10
10 10 10 10 10 10 10 10 10 10
1 2
2 4
5 2
6 3
3 1
6 7
9 7
8 6
8 10

*/

Compilation message

match.cpp: In function 'void solve()':
match.cpp:22:8: warning: unused variable 'cost' [-Wunused-variable]
   22 |     ll cost[2] = {1, -1};
      |        ^~~~

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 504 KB Output is correct

Subtask #2
0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 504 KB Output is correct
4 Incorrect 368 ms 504 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #3
0 / 63.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 504 KB Output is correct
4 Incorrect 368 ms 504 KB Output isn't correct
5 Halted 0 ms 0 KB -