답안 #37445 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
37445	2017-12-25T13:46:57 Z	HardNut	Bootfall (IZhO17_bootfall)	C++14	13 / 100	29 ms	4132 KB

bootfall

#include<bits/stdc++.h>

using namespace std;

const int N = 250005;
const int mod = 1e9 + 7;

typedef long long ll;

int n, a[505], sum;
vector<int> vec;
int ans[N];
int dp[N];

void add(int v) {
    for (int i = sum; i >= 0; i--) {
        dp[i + v] += dp[i];
        dp[i + v] %= mod;
    }
    sum += v;
}

void del(int v) {
    sum -= v;
    for (int i = 0; i <= sum; i++) {
        dp[i + v] = (dp[i + v] - dp[i] + mod) % mod;
    }
}

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cin >> n;
    dp[0] = 1;
    for (int i = 1; i <= n; i++) {
        cin >> a[i];
        add(a[i]);
    }
    if (sum % 2 == 1) {
        cout << 0;
        return 0;
    }
    for (int i = 1; i <= sum; i++) {
        ans[i] = 1;
    }
    if (!dp[sum / 2]) {
        cout << 0;
        return 0;
    }
    for (int i = 1; i <= n; i++) {
        del(a[i]);
        for (int j = 1; j <= N; j++) {
            if ((sum + j) % 2) {
                ans[j] = 0;
                continue;
            }
            if (!dp[(sum + j) / 2]) {
                ans[j] = 0;
            }
        }
        add(a[i]);
    }
    int cnt = 0;
    for (int i = 1; i <= sum; i++) {
        cnt += ans[i];
    }
    cout << cnt << "\n";
    for (int i = 1; i <= sum; i++)
        if (ans[i])
            cout << i << " ";
}

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	4132 KB	Output is correct
2	Correct	0 ms	4132 KB	Output is correct
3	Correct	0 ms	4132 KB	Output is correct
4	Correct	0 ms	4132 KB	Output is correct
5	Correct	3 ms	4132 KB	Output is correct
6	Correct	0 ms	4132 KB	Output is correct
7	Correct	0 ms	4132 KB	Output is correct
8	Correct	3 ms	4132 KB	Output is correct
9	Correct	3 ms	4132 KB	Output is correct

Subtask #2
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	4132 KB	Output is correct
2	Correct	0 ms	4132 KB	Output is correct
3	Correct	0 ms	4132 KB	Output is correct
4	Correct	0 ms	4132 KB	Output is correct
5	Correct	3 ms	4132 KB	Output is correct
6	Correct	0 ms	4132 KB	Output is correct
7	Correct	0 ms	4132 KB	Output is correct
8	Correct	3 ms	4132 KB	Output is correct
9	Correct	3 ms	4132 KB	Output is correct
10	Correct	9 ms	4132 KB	Output is correct
11	Correct	6 ms	4132 KB	Output is correct
12	Correct	9 ms	4132 KB	Output is correct
13	Correct	6 ms	4132 KB	Output is correct
14	Correct	9 ms	4132 KB	Output is correct
15	Correct	6 ms	4132 KB	Output is correct
16	Correct	9 ms	4132 KB	Output is correct
17	Correct	6 ms	4132 KB	Output is correct
18	Correct	6 ms	4132 KB	Output is correct
19	Correct	9 ms	4132 KB	Output is correct
20	Correct	9 ms	4132 KB	Output is correct

Subtask #3
0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	4132 KB	Output is correct
2	Correct	0 ms	4132 KB	Output is correct
3	Correct	0 ms	4132 KB	Output is correct
4	Correct	0 ms	4132 KB	Output is correct
5	Correct	3 ms	4132 KB	Output is correct
6	Correct	0 ms	4132 KB	Output is correct
7	Correct	0 ms	4132 KB	Output is correct
8	Correct	3 ms	4132 KB	Output is correct
9	Correct	3 ms	4132 KB	Output is correct
10	Correct	9 ms	4132 KB	Output is correct
11	Correct	6 ms	4132 KB	Output is correct
12	Correct	9 ms	4132 KB	Output is correct
13	Correct	6 ms	4132 KB	Output is correct
14	Correct	9 ms	4132 KB	Output is correct
15	Correct	6 ms	4132 KB	Output is correct
16	Correct	9 ms	4132 KB	Output is correct
17	Correct	6 ms	4132 KB	Output is correct
18	Correct	6 ms	4132 KB	Output is correct
19	Correct	9 ms	4132 KB	Output is correct
20	Correct	9 ms	4132 KB	Output is correct
21	Correct	23 ms	4132 KB	Output is correct
22	Correct	23 ms	4132 KB	Output is correct
23	Correct	16 ms	4132 KB	Output is correct
24	Runtime error	29 ms	4132 KB	Execution killed because of forbidden syscall writev (20)
25	Halted	0 ms	0 KB	-

Subtask #4
0 / 16.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	4132 KB	Output is correct
2	Correct	0 ms	4132 KB	Output is correct
3	Correct	0 ms	4132 KB	Output is correct
4	Correct	0 ms	4132 KB	Output is correct
5	Correct	3 ms	4132 KB	Output is correct
6	Correct	0 ms	4132 KB	Output is correct
7	Correct	0 ms	4132 KB	Output is correct
8	Correct	3 ms	4132 KB	Output is correct
9	Correct	3 ms	4132 KB	Output is correct
10	Correct	9 ms	4132 KB	Output is correct
11	Correct	6 ms	4132 KB	Output is correct
12	Correct	9 ms	4132 KB	Output is correct
13	Correct	6 ms	4132 KB	Output is correct
14	Correct	9 ms	4132 KB	Output is correct
15	Correct	6 ms	4132 KB	Output is correct
16	Correct	9 ms	4132 KB	Output is correct
17	Correct	6 ms	4132 KB	Output is correct
18	Correct	6 ms	4132 KB	Output is correct
19	Correct	9 ms	4132 KB	Output is correct
20	Correct	9 ms	4132 KB	Output is correct
21	Correct	23 ms	4132 KB	Output is correct
22	Correct	23 ms	4132 KB	Output is correct
23	Correct	16 ms	4132 KB	Output is correct
24	Runtime error	29 ms	4132 KB	Execution killed because of forbidden syscall writev (20)
25	Halted	0 ms	0 KB	-

Subtask #5
0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	4132 KB	Output is correct
2	Correct	0 ms	4132 KB	Output is correct
3	Correct	0 ms	4132 KB	Output is correct
4	Correct	0 ms	4132 KB	Output is correct
5	Correct	3 ms	4132 KB	Output is correct
6	Correct	0 ms	4132 KB	Output is correct
7	Correct	0 ms	4132 KB	Output is correct
8	Correct	3 ms	4132 KB	Output is correct
9	Correct	3 ms	4132 KB	Output is correct
10	Correct	9 ms	4132 KB	Output is correct
11	Correct	6 ms	4132 KB	Output is correct
12	Correct	9 ms	4132 KB	Output is correct
13	Correct	6 ms	4132 KB	Output is correct
14	Correct	9 ms	4132 KB	Output is correct
15	Correct	6 ms	4132 KB	Output is correct
16	Correct	9 ms	4132 KB	Output is correct
17	Correct	6 ms	4132 KB	Output is correct
18	Correct	6 ms	4132 KB	Output is correct
19	Correct	9 ms	4132 KB	Output is correct
20	Correct	9 ms	4132 KB	Output is correct
21	Correct	23 ms	4132 KB	Output is correct
22	Correct	23 ms	4132 KB	Output is correct
23	Correct	16 ms	4132 KB	Output is correct
24	Runtime error	29 ms	4132 KB	Execution killed because of forbidden syscall writev (20)
25	Halted	0 ms	0 KB	-

Subtask #6
0 / 35.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	4132 KB	Output is correct
2	Correct	0 ms	4132 KB	Output is correct
3	Correct	0 ms	4132 KB	Output is correct
4	Correct	0 ms	4132 KB	Output is correct
5	Correct	3 ms	4132 KB	Output is correct
6	Correct	0 ms	4132 KB	Output is correct
7	Correct	0 ms	4132 KB	Output is correct
8	Correct	3 ms	4132 KB	Output is correct
9	Correct	3 ms	4132 KB	Output is correct
10	Correct	9 ms	4132 KB	Output is correct
11	Correct	6 ms	4132 KB	Output is correct
12	Correct	9 ms	4132 KB	Output is correct
13	Correct	6 ms	4132 KB	Output is correct
14	Correct	9 ms	4132 KB	Output is correct
15	Correct	6 ms	4132 KB	Output is correct
16	Correct	9 ms	4132 KB	Output is correct
17	Correct	6 ms	4132 KB	Output is correct
18	Correct	6 ms	4132 KB	Output is correct
19	Correct	9 ms	4132 KB	Output is correct
20	Correct	9 ms	4132 KB	Output is correct
21	Correct	23 ms	4132 KB	Output is correct
22	Correct	23 ms	4132 KB	Output is correct
23	Correct	16 ms	4132 KB	Output is correct
24	Runtime error	29 ms	4132 KB	Execution killed because of forbidden syscall writev (20)
25	Halted	0 ms	0 KB	-

답안 #37445

Compilation message

Subtask #1 6.0 / 6.0

Subtask #2 7.0 / 7.0

Subtask #3 0 / 15.0

Subtask #4 0 / 16.0

Subtask #5 0 / 21.0

Subtask #6 0 / 35.0

Subtask #1
6.0 / 6.0

Subtask #2
7.0 / 7.0

Subtask #3
0 / 15.0

Subtask #4
0 / 16.0

Subtask #5
0 / 21.0

Subtask #6
0 / 35.0