oj.uz

Submission #640286

# Submission time Handle Problem Language Result Execution time Memory
640286 2022-09-14T05:50:23 Z kith14 Zagrade (COI20_zagrade) C++17
0 / 100
 1 ms 208 KB 
#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define db double
#define pairll pair<ll,ll>
#define lpairll pair<ll,pairll>

#define repp(i,a,b) for (ll i = a; i <= b; i++)
#define repz(i,a,b) for (ll i = a; i < b; i++)
#define repm(i,a,b) for (ll i = a; i >= b; i--)
#define fr first
#define sc second
#define mp make_pair
#define pb push_back

const ll N = 1e5+5, MOD = 1e9+7;
ll tc = 1, n, m, fnd[N];
ll x, y, k;
string s, s1, s2, ye = "YES", no = "NO";
char cr[N];

ll ask(ll l, ll r){
  cout << "? " << l << " " << r << endl;
  cin >> m; return m;
}

void input(){
  cin >> n >> k; 
}

void solve(){
  vector<ll> ntbgt;
  ntbgt.pb(1);
  cr[1] = '(';
  repp(i,2,n){
    ll a1 = ask(ntbgt.back(),i);
    if (a1 == 1){
      cr[i] = ')';
      ntbgt.pop_back();
    }
    else{
      cr[i] = '(';
      ntbgt.pb(i);
    }
  }

  cout << "! ";
  for (ll i = 1; i <= n; i++){
    cout << cr[i];
  }
  cout << endl;
}

int main(){
  ios_base::sync_with_stdio(0);
  cin.tie(NULL);
  cout.tie(NULL);
  //cin >> tc;
  while(tc--){
    input();
    solve();
  }
}

Subtask #1
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Runtime error 0 ms 208 KB Execution killed with signal 13
3 Halted 0 ms 0 KB -

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 208 KB Mismatch at position 1. Expected ), found (
2 Halted 0 ms 0 KB -

Subtask #3
0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Runtime error 0 ms 208 KB Execution killed with signal 13
3 Halted 0 ms 0 KB -

Subtask #4
0 / 22.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 208 KB Mismatch at position 1. Expected ), found (
2 Halted 0 ms 0 KB -