oj.uz

Submission #942067

# Submission time Handle Problem Language Result Execution time Memory
942067 2024-03-10T07:47:09 Z GrindMachine Match (CEOI16_match) C++17
10 / 100
 10 ms 604 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

using namespace std;
using namespace __gnu_pbds;

template<typename T> using Tree = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
typedef long long int ll;
typedef long double ld;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;

#define fastio ios_base::sync_with_stdio(false); cin.tie(NULL)
#define pb push_back
#define endl '\n'
#define sz(a) (int)a.size()
#define setbits(x) __builtin_popcountll(x)
#define ff first
#define ss second
#define conts continue
#define ceil2(x,y) ((x+y-1)/(y))
#define all(a) a.begin(), a.end()
#define rall(a) a.rbegin(), a.rend()
#define yes cout << "Yes" << endl
#define no cout << "No" << endl

#define rep(i,n) for(int i = 0; i < n; ++i)
#define rep1(i,n) for(int i = 1; i <= n; ++i)
#define rev(i,s,e) for(int i = s; i >= e; --i)
#define trav(i,a) for(auto &i : a)

template<typename T>
void amin(T &a, T b) {
    a = min(a,b);
}

template<typename T>
void amax(T &a, T b) {
    a = max(a,b);
}

#ifdef LOCAL
#include "debug.h"
#else
#define debug(x) 42
#endif

/*



*/

const int MOD = 1e9 + 7;
const int N = 1e5 + 5;
const int inf1 = int(1e9) + 5;
const ll inf2 = ll(1e18) + 5;

void solve(int test_case)
{
    string s; cin >> s;
    ll n = sz(s);
    if(n&1){
        cout << -1 << endl;
        return;
    }

    stack<ll> stk;
    rep(i,n){
        if(!stk.empty() and s[i] == s[stk.top()]){
            stk.pop();
        }
        else{
            stk.push(i);
        }
    }

    if(!stk.empty()){
        cout << -1 << endl;
        return;
    }

    rep(mask,1<<n){
        if(setbits(mask) != n/2) conts;
        string ans = "";
        rev(i,n-1,0){
            if(mask&(1<<i)){
                ans.pb(')');
            }
            else{
                ans.pb('(');
            }
        }
 
        stack<ll> stk;
        bool ok = true;
 
        rep(i,n){
            if(ans[i] == '('){
                stk.push(i);
            }
            else{
                if(stk.empty()){
                    ok = false;
                    break;
                }
                if(s[stk.top()] != s[i]){
                    ok = false;
                    break;
                }
 
                stk.pop();
            }
        }
 
        if(ok){
            cout << ans << endl;
            return;
        }
    }

    assert(0);
}

int main()
{
    fastio;

    int t = 1;
    // cin >> t;

    rep1(i, t) {
        solve(i);
    }

    return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct

Subtask #2
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Runtime error 10 ms 604 KB Execution killed with signal 6
5 Halted 0 ms 0 KB -

Subtask #3
0 / 63.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Runtime error 10 ms 604 KB Execution killed with signal 6
5 Halted 0 ms 0 KB -