oj.uz

Submission #829013

# Submission time Handle Problem Language Result Execution time Memory
829013 2023-08-18T01:36:54 Z vjudge1 Colors (BOI20_colors) C++17
0 / 100
 1 ms 208 KB 
#include <bits/stdc++.h>
using namespace std;
#define fastio ios::sync_with_stdio(0); cin.tie(0); cout.tie(0)
#define ll long long
#define pii pair<int, int>
#define pll pair<ll, ll>
#define pb push_back
#define fi first
#define se second

ll n, l, r, mid, x, c, memo;
bool b;

int main() {
	fastio;
	cin >> n;
	l = 1;
	r = n;
	c = 1e9;
	for (int i = 1; i <= 32; i++) {
		mid = (l+r)/2;
		cout << "? " << 1 << endl;
		cin >> b;
		cout << "? " << mid << endl;
		cin >> b;
		if (!b) {
			l = mid + 1;
		} else {
			r = mid - 1;
			c = min(c, mid);
		}
	}
	cout << "= " << c << endl;
}

Subtask #1
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 208 KB Hair color 1 was used multiple times
2 Halted 0 ms 0 KB -

Subtask #2
0 / 13.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 208 KB Hair color 1 was used multiple times
2 Halted 0 ms 0 KB -

Subtask #3
0 / 21.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 208 KB Hair color 1 was used multiple times
2 Halted 0 ms 0 KB -

Subtask #4
0 / 24.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 208 KB Hair color 1 was used multiple times
2 Halted 0 ms 0 KB -

Subtask #5
0 / 33.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 208 KB Hair color 1 was used multiple times
2 Halted 0 ms 0 KB -