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Submission #706423

# Submission time Handle Problem Language Result Execution time Memory
706423 2023-03-06T14:34:29 Z vjudge1 Zagrade (COI20_zagrade) C++17
0 / 100
 826 ms 532 KB 
#include <bits/stdc++.h>
using namespace std;
// #define int long long
// #define endl '\n'
#define F first
#define S second
#define pb push_back
#define all(a) a.begin(),a.end()
const int N=4e3;
const int off=1<<20;
const int MOD=1e9+7;


signed main(){
   ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
   int n,q;
   cin >> n >> q;
   int mns=1;
   string s;
   int cnt=n/2;
   for(int i=0;i<n;i++)s+='?';
   for(int i=2;i<=n;i++){
      if(i-mns<=0)mns=1;
      cout.flush()<<"? "<<i-mns<<' '<<i<<endl;
      int ans;
      cin >> ans;
      if(ans){
         s[i-mns-1]='(';
         s[i-1]=')';
         mns+=2;
         // i++;
         cnt--;
      }
      else mns=1;
   }
   int l=cnt,r=cnt;
   for(int i=0;i<n;i++){
      if(s[i]=='?'){
         if(l){
            s[i]=')';
            l--;
         }
         else{
            s[i]='(';
            r--;
         }
      }
   }
   cout.flush()<<"! "<<s<<endl;
}

Subtask #1
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 12 ms 208 KB Output is correct
3 Incorrect 7 ms 208 KB Mismatch at position 1. Expected (, found )
4 Halted 0 ms 0 KB -

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 6 ms 208 KB Output is correct
3 Incorrect 8 ms 256 KB Mismatch at position 30. Expected (, found )
4 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 Correct 826 ms 524 KB Output is correct
3 Incorrect 687 ms 532 KB Mismatch at position 1. Expected (, found )
4 Halted 0 ms 0 KB -

Subtask #4
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 662 ms 524 KB Output is correct
3 Incorrect 612 ms 516 KB Mismatch at position 11. Expected (, found )
4 Halted 0 ms 0 KB -