oj.uz

Submission #1003868

# Submission time Handle Problem Language Result Execution time Memory
1003868 2024-06-20T19:22:56 Z vjudge1 Zagrade (COI20_zagrade) C++17
14 / 100
 751 ms 680 KB 
#include<bits/stdc++.h>
using namespace std;
#define int long long
#define pb push_back
#define pii pair<int,int>
#define tii tuple<int,int,int,int,int>
#define all(x) x.begin(),x.end()
#define allr(x) x.rbegin(),x.rend()

vector<char> ans;
int n;

bool ask(int l, int r){
	cout << "? " << l << " " << r << endl;
	int rt; cin >> rt;
	return rt;
}

void solve(int l, int r){
	if(r<l) return;

	for(int i=l+1; i<=r; i+=2){
		if(ask(l,i)){
			ans[l]='(';
			ans[i]=')';
			solve(l+1,i-1);
			solve(i+1,r);
			break;
		}
	}

	return;
}

signed main(){
	int q; cin >> n >> q;
	ans.resize(n+1);
	solve(1,n);
	cout << "! ";
	for(int i=1; i<=n; i++) cout << ans[i];
	cout << endl;
}

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 3 ms 344 KB Output is correct
3 Correct 13 ms 344 KB Output is correct
4 Correct 20 ms 344 KB Output is correct
5 Correct 31 ms 344 KB Output is correct
6 Correct 50 ms 344 KB Output is correct
7 Correct 751 ms 680 KB Output is correct
8 Correct 26 ms 344 KB Output is correct

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 344 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 344 KB Output is correct
2 Correct 288 ms 344 KB Output is correct
3 Runtime error 553 ms 508 KB Execution killed with signal 13
4 Halted 0 ms 0 KB -

Subtask #4
0 / 22.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB Mismatch at position 1. Expected ), found
2 Halted 0 ms 0 KB -