Submission #858828

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
858828	2023-10-09T08:42:12 Z	maks007	Colors (BOI20_colors)	C++14	0 / 100	1 ms	444 KB

Colors

#include "bits/stdc++.h"

using namespace std;

signed main () {
	int n;
	cin >> n;
	cout << "? 1" << endl;
	int x;
	cin >> x;
	int r = n+2;
	for(int l = 1, f = 1;; f = 1 - f) {
		if(l + 2 >= r) break;
		if(f) {
			r -= 2;
			cout << "? " << r << endl;
			cin >> x;
			if(x == 0) {
				if(x == 0 && r == n) {
					cout << "= " << n << endl;
					return 0;
				}
				cout << "? " << r - (r - l + 1) << endl;
				cin >> x;
				if(x == 1) {
					cout << "= " << (r - l + 1) << endl;
				}else {
					cout << "= " << (r - l + 1) + 1 << endl;
				}
				return 0;
			}
		}else {
			l += 2;
			cout << "? " << l << endl;
			cin >> x;
			if(x == 0) {
				cout << "? " << l + (r - l + 1) << endl;
				cin >> x;
				if(x == 1) {
					cout << "= " << (r - l + 1) << endl;
				}else {
					cout << "= " << (r - l + 1) + 1 << endl;
				}
				return 0;
			}
		}
	}
	cout <<"= 1" << endl;
	return 0;
}

Subtask #1

0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	344 KB	OK (5 queries)
2	Correct	0 ms	344 KB	OK (5 queries)
3	Correct	0 ms	344 KB	OK (7 queries)
4	Correct	0 ms	344 KB	OK (14 queries)
5	Correct	0 ms	344 KB	OK (9 queries)
6	Correct	0 ms	344 KB	OK (15 queries)
7	Correct	0 ms	344 KB	OK (11 queries)
8	Correct	0 ms	344 KB	OK (6 queries)
9	Correct	1 ms	344 KB	OK (7 queries)
10	Correct	0 ms	344 KB	OK (6 queries)
11	Runtime error	0 ms	444 KB	Execution killed with signal 13
12	Halted	0 ms	0 KB	-

Subtask #2

0 / 13.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	344 KB	OK (5 queries)
2	Correct	0 ms	344 KB	OK (5 queries)
3	Correct	0 ms	344 KB	OK (7 queries)
4	Correct	0 ms	344 KB	OK (14 queries)
5	Correct	0 ms	344 KB	OK (9 queries)
6	Correct	0 ms	344 KB	OK (15 queries)
7	Correct	0 ms	344 KB	OK (11 queries)
8	Correct	0 ms	344 KB	OK (6 queries)
9	Correct	1 ms	344 KB	OK (7 queries)
10	Correct	0 ms	344 KB	OK (6 queries)
11	Runtime error	0 ms	444 KB	Execution killed with signal 13
12	Halted	0 ms	0 KB	-

Subtask #3

0 / 21.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	344 KB	OK (5 queries)
2	Correct	0 ms	344 KB	OK (5 queries)
3	Correct	0 ms	344 KB	OK (7 queries)
4	Correct	0 ms	344 KB	OK (14 queries)
5	Correct	0 ms	344 KB	OK (9 queries)
6	Correct	0 ms	344 KB	OK (15 queries)
7	Correct	0 ms	344 KB	OK (11 queries)
8	Correct	0 ms	344 KB	OK (6 queries)
9	Correct	1 ms	344 KB	OK (7 queries)
10	Correct	0 ms	344 KB	OK (6 queries)
11	Runtime error	0 ms	444 KB	Execution killed with signal 13
12	Halted	0 ms	0 KB	-

Subtask #4

0 / 24.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	344 KB	OK (5 queries)
2	Correct	0 ms	344 KB	OK (5 queries)
3	Correct	0 ms	344 KB	OK (7 queries)
4	Correct	0 ms	344 KB	OK (14 queries)
5	Correct	0 ms	344 KB	OK (9 queries)
6	Correct	0 ms	344 KB	OK (15 queries)
7	Correct	0 ms	344 KB	OK (11 queries)
8	Correct	0 ms	344 KB	OK (6 queries)
9	Correct	1 ms	344 KB	OK (7 queries)
10	Correct	0 ms	344 KB	OK (6 queries)
11	Runtime error	0 ms	444 KB	Execution killed with signal 13
12	Halted	0 ms	0 KB	-

Subtask #5

0 / 33.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	344 KB	OK (5 queries)
2	Correct	0 ms	344 KB	OK (5 queries)
3	Correct	0 ms	344 KB	OK (7 queries)
4	Correct	0 ms	344 KB	OK (14 queries)
5	Correct	0 ms	344 KB	OK (9 queries)
6	Correct	0 ms	344 KB	OK (15 queries)
7	Correct	0 ms	344 KB	OK (11 queries)
8	Correct	0 ms	344 KB	OK (6 queries)
9	Correct	1 ms	344 KB	OK (7 queries)
10	Correct	0 ms	344 KB	OK (6 queries)
11	Runtime error	0 ms	444 KB	Execution killed with signal 13
12	Halted	0 ms	0 KB	-