답안 #1113607

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1113607	2024-11-16T19:28:50 Z	ortsac	Alternating Current (BOI18_alternating)	C++17	13 / 100	27 ms	2384 KB

alternating

#include <bits/stdc++.h>

using namespace std;

#define pii pair<int, int>
#define fr first
#define se second

int32_t main() {
    int n, m;
    cin >> n >> m;
    vector<pii> r(m);
    for (int i = 0; i < m; i++) {
        cin >> r[i].fr >> r[i].se;
    }
    int ans = -1;
    for (int mask = 0; mask < (1 << m); mask++) {
        vector<vector<int>> qtd(2, vector<int>(n + 2));
        for (int i = 0; i < m; i++) {
            int w = ((mask & (1 << i)) > 0);
            auto u = r[i];
            qtd[w][u.fr]++;
            qtd[w][u.se + 1]--;
            if (u.se < u.fr) {
                qtd[w][1]++;
            }
        }
        for (int j = 0; j < 2; j++) {
            for (int i = 1; i <= n; i++) {
                qtd[j][i] += qtd[j][i - 1];
            }
        }
        bool ok = 1;
        for (int i = 1; i <= n; i++) {
            if (!(qtd[0][i] && qtd[1][i])) ok = 0;
        }
        if (ok) {
            ans = mask;
        }
    }
    if (ans == -1) {
        cout << "impossible\n";
    } else {
        for (int i = 0; i < m; i++) {
            if (ans & (1 << i)) cout << "1";
            else cout << "0";
        }
        cout << "\n";
    }
}

Subtask #1
13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	336 KB	Output is correct
2	Correct	1 ms	336 KB	Output is correct
3	Correct	1 ms	336 KB	Output is correct
4	Correct	1 ms	336 KB	Output is correct
5	Correct	1 ms	336 KB	Output is correct
6	Correct	1 ms	336 KB	Output is correct
7	Correct	1 ms	336 KB	Output is correct
8	Correct	1 ms	336 KB	Output is correct
9	Correct	1 ms	336 KB	Output is correct
10	Correct	1 ms	336 KB	Output is correct
11	Correct	1 ms	436 KB	Output is correct
12	Correct	1 ms	336 KB	Output is correct
13	Correct	1 ms	336 KB	Output is correct
14	Correct	1 ms	336 KB	Output is correct
15	Correct	1 ms	592 KB	Output is correct
16	Correct	4 ms	436 KB	Output is correct
17	Correct	1 ms	336 KB	Output is correct
18	Correct	1 ms	336 KB	Output is correct
19	Correct	1 ms	336 KB	Output is correct
20	Correct	1 ms	336 KB	Output is correct
21	Correct	1 ms	336 KB	Output is correct
22	Correct	5 ms	336 KB	Output is correct
23	Correct	1 ms	336 KB	Output is correct
24	Correct	5 ms	336 KB	Output is correct
25	Correct	1 ms	444 KB	Output is correct
26	Correct	1 ms	336 KB	Output is correct
27	Correct	1 ms	336 KB	Output is correct
28	Correct	1 ms	336 KB	Output is correct
29	Correct	1 ms	336 KB	Output is correct
30	Correct	1 ms	336 KB	Output is correct
31	Correct	5 ms	440 KB	Output is correct
32	Correct	1 ms	336 KB	Output is correct
33	Correct	1 ms	336 KB	Output is correct
34	Correct	2 ms	336 KB	Output is correct
35	Correct	4 ms	336 KB	Output is correct
36	Correct	4 ms	440 KB	Output is correct
37	Correct	4 ms	336 KB	Output is correct
38	Correct	4 ms	336 KB	Output is correct
39	Correct	4 ms	336 KB	Output is correct
40	Correct	1 ms	336 KB	Output is correct

Subtask #2
0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	336 KB	Output is correct
2	Correct	1 ms	336 KB	Output is correct
3	Correct	1 ms	336 KB	Output is correct
4	Correct	1 ms	336 KB	Output is correct
5	Correct	1 ms	336 KB	Output is correct
6	Correct	1 ms	336 KB	Output is correct
7	Correct	1 ms	336 KB	Output is correct
8	Correct	1 ms	336 KB	Output is correct
9	Correct	1 ms	336 KB	Output is correct
10	Correct	1 ms	336 KB	Output is correct
11	Correct	1 ms	436 KB	Output is correct
12	Correct	1 ms	336 KB	Output is correct
13	Correct	1 ms	336 KB	Output is correct
14	Correct	1 ms	336 KB	Output is correct
15	Correct	1 ms	592 KB	Output is correct
16	Correct	4 ms	436 KB	Output is correct
17	Correct	1 ms	336 KB	Output is correct
18	Correct	1 ms	336 KB	Output is correct
19	Correct	1 ms	336 KB	Output is correct
20	Correct	1 ms	336 KB	Output is correct
21	Correct	1 ms	336 KB	Output is correct
22	Correct	5 ms	336 KB	Output is correct
23	Correct	1 ms	336 KB	Output is correct
24	Correct	5 ms	336 KB	Output is correct
25	Correct	1 ms	444 KB	Output is correct
26	Correct	1 ms	336 KB	Output is correct
27	Correct	1 ms	336 KB	Output is correct
28	Correct	1 ms	336 KB	Output is correct
29	Correct	1 ms	336 KB	Output is correct
30	Correct	1 ms	336 KB	Output is correct
31	Correct	5 ms	440 KB	Output is correct
32	Correct	1 ms	336 KB	Output is correct
33	Correct	1 ms	336 KB	Output is correct
34	Correct	2 ms	336 KB	Output is correct
35	Correct	4 ms	336 KB	Output is correct
36	Correct	4 ms	440 KB	Output is correct
37	Correct	4 ms	336 KB	Output is correct
38	Correct	4 ms	336 KB	Output is correct
39	Correct	4 ms	336 KB	Output is correct
40	Correct	1 ms	336 KB	Output is correct
41	Correct	1 ms	336 KB	Output is correct
42	Correct	2 ms	336 KB	Output is correct
43	Incorrect	1 ms	336 KB	'impossible' claimed, but there is a solution
44	Halted	0 ms	0 KB	-

Subtask #3
0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	336 KB	Output is correct
2	Correct	1 ms	336 KB	Output is correct
3	Correct	1 ms	336 KB	Output is correct
4	Correct	1 ms	336 KB	Output is correct
5	Correct	1 ms	336 KB	Output is correct
6	Correct	1 ms	336 KB	Output is correct
7	Correct	1 ms	336 KB	Output is correct
8	Correct	1 ms	336 KB	Output is correct
9	Correct	1 ms	336 KB	Output is correct
10	Correct	1 ms	336 KB	Output is correct
11	Correct	1 ms	436 KB	Output is correct
12	Correct	1 ms	336 KB	Output is correct
13	Correct	1 ms	336 KB	Output is correct
14	Correct	1 ms	336 KB	Output is correct
15	Correct	1 ms	592 KB	Output is correct
16	Correct	4 ms	436 KB	Output is correct
17	Correct	1 ms	336 KB	Output is correct
18	Correct	1 ms	336 KB	Output is correct
19	Correct	1 ms	336 KB	Output is correct
20	Correct	1 ms	336 KB	Output is correct
21	Correct	1 ms	336 KB	Output is correct
22	Correct	5 ms	336 KB	Output is correct
23	Correct	1 ms	336 KB	Output is correct
24	Correct	5 ms	336 KB	Output is correct
25	Correct	1 ms	444 KB	Output is correct
26	Correct	1 ms	336 KB	Output is correct
27	Correct	1 ms	336 KB	Output is correct
28	Correct	1 ms	336 KB	Output is correct
29	Correct	1 ms	336 KB	Output is correct
30	Correct	1 ms	336 KB	Output is correct
31	Correct	5 ms	440 KB	Output is correct
32	Correct	1 ms	336 KB	Output is correct
33	Correct	1 ms	336 KB	Output is correct
34	Correct	2 ms	336 KB	Output is correct
35	Correct	4 ms	336 KB	Output is correct
36	Correct	4 ms	440 KB	Output is correct
37	Correct	4 ms	336 KB	Output is correct
38	Correct	4 ms	336 KB	Output is correct
39	Correct	4 ms	336 KB	Output is correct
40	Correct	1 ms	336 KB	Output is correct
41	Correct	1 ms	336 KB	Output is correct
42	Correct	2 ms	336 KB	Output is correct
43	Incorrect	1 ms	336 KB	'impossible' claimed, but there is a solution
44	Halted	0 ms	0 KB	-

Subtask #4
0 / 19.0

#	결과	실행 시간	메모리	Grader output
1	Incorrect	27 ms	2384 KB	'impossible' claimed, but there is a solution
2	Halted	0 ms	0 KB	-

Subtask #5
0 / 26.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	336 KB	Output is correct
2	Correct	1 ms	336 KB	Output is correct
3	Correct	1 ms	336 KB	Output is correct
4	Correct	1 ms	336 KB	Output is correct
5	Correct	1 ms	336 KB	Output is correct
6	Correct	1 ms	336 KB	Output is correct
7	Correct	1 ms	336 KB	Output is correct
8	Correct	1 ms	336 KB	Output is correct
9	Correct	1 ms	336 KB	Output is correct
10	Correct	1 ms	336 KB	Output is correct
11	Correct	1 ms	436 KB	Output is correct
12	Correct	1 ms	336 KB	Output is correct
13	Correct	1 ms	336 KB	Output is correct
14	Correct	1 ms	336 KB	Output is correct
15	Correct	1 ms	592 KB	Output is correct
16	Correct	4 ms	436 KB	Output is correct
17	Correct	1 ms	336 KB	Output is correct
18	Correct	1 ms	336 KB	Output is correct
19	Correct	1 ms	336 KB	Output is correct
20	Correct	1 ms	336 KB	Output is correct
21	Correct	1 ms	336 KB	Output is correct
22	Correct	5 ms	336 KB	Output is correct
23	Correct	1 ms	336 KB	Output is correct
24	Correct	5 ms	336 KB	Output is correct
25	Correct	1 ms	444 KB	Output is correct
26	Correct	1 ms	336 KB	Output is correct
27	Correct	1 ms	336 KB	Output is correct
28	Correct	1 ms	336 KB	Output is correct
29	Correct	1 ms	336 KB	Output is correct
30	Correct	1 ms	336 KB	Output is correct
31	Correct	5 ms	440 KB	Output is correct
32	Correct	1 ms	336 KB	Output is correct
33	Correct	1 ms	336 KB	Output is correct
34	Correct	2 ms	336 KB	Output is correct
35	Correct	4 ms	336 KB	Output is correct
36	Correct	4 ms	440 KB	Output is correct
37	Correct	4 ms	336 KB	Output is correct
38	Correct	4 ms	336 KB	Output is correct
39	Correct	4 ms	336 KB	Output is correct
40	Correct	1 ms	336 KB	Output is correct
41	Correct	1 ms	336 KB	Output is correct
42	Correct	2 ms	336 KB	Output is correct
43	Incorrect	1 ms	336 KB	'impossible' claimed, but there is a solution
44	Halted	0 ms	0 KB	-

답안 #1113607

Compilation message

Subtask #1 13.0 / 13.0

Subtask #2 0 / 20.0

Subtask #3 0 / 22.0

Subtask #4 0 / 19.0

Subtask #5 0 / 26.0

Subtask #1
13.0 / 13.0

Subtask #2
0 / 20.0

Subtask #3
0 / 22.0

Subtask #4
0 / 19.0

Subtask #5
0 / 26.0