답안 #37474 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
37474	2017-12-25T16:14:52 Z	HardNut	Bootfall (IZhO17_bootfall)	C++14	100 / 100	973 ms	4824 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];
bool used[505];

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

int main() {
//    freopen("bootfall.in", "r", stdin);
//    freopen("bootfall.out", "w", stdout);
    scanf("%d", &n);
    dp[0] = 1;
    for (int i = 1; i <= n; i++) {
        scanf("%d", &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++) {
        if (used[a[i]])
            continue;
        used[a[i]] = 1;
        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++) {
        if (ans[i])
            vec.push_back(i);
    }
    printf("%d\n", vec.size());
    for (int i = 0; i < vec.size(); i++)
        printf("%d ", vec[i]);
}

Compilation message

bootfall.cpp: In function 'int main()':
bootfall.cpp:75:30: warning: format '%d' expects argument of type 'int', but argument 2 has type 'std::vector<int>::size_type {aka long unsigned int}' [-Wformat=]
     printf("%d\n", vec.size());
                              ^
bootfall.cpp:76:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < vec.size(); i++)
                       ^
bootfall.cpp:70:9: warning: unused variable 'cnt' [-Wunused-variable]
     int cnt = 0;
         ^
bootfall.cpp:37:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
                    ^
bootfall.cpp:40:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &a[i]);
                           ^

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	3972 KB	Output is correct
2	Correct	3 ms	3972 KB	Output is correct
3	Correct	0 ms	3972 KB	Output is correct
4	Correct	0 ms	3972 KB	Output is correct
5	Correct	3 ms	3972 KB	Output is correct
6	Correct	3 ms	3972 KB	Output is correct
7	Correct	0 ms	3972 KB	Output is correct
8	Correct	3 ms	3972 KB	Output is correct
9	Correct	3 ms	3972 KB	Output is correct

Subtask #2
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	3972 KB	Output is correct
2	Correct	3 ms	3972 KB	Output is correct
3	Correct	0 ms	3972 KB	Output is correct
4	Correct	0 ms	3972 KB	Output is correct
5	Correct	3 ms	3972 KB	Output is correct
6	Correct	3 ms	3972 KB	Output is correct
7	Correct	0 ms	3972 KB	Output is correct
8	Correct	3 ms	3972 KB	Output is correct
9	Correct	3 ms	3972 KB	Output is correct
10	Correct	0 ms	3972 KB	Output is correct
11	Correct	3 ms	3972 KB	Output is correct
12	Correct	3 ms	3972 KB	Output is correct
13	Correct	6 ms	3972 KB	Output is correct
14	Correct	0 ms	3972 KB	Output is correct
15	Correct	3 ms	3972 KB	Output is correct
16	Correct	3 ms	3972 KB	Output is correct
17	Correct	3 ms	3972 KB	Output is correct
18	Correct	3 ms	3972 KB	Output is correct
19	Correct	3 ms	3972 KB	Output is correct
20	Correct	0 ms	3972 KB	Output is correct

Subtask #3
15.0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	3972 KB	Output is correct
2	Correct	3 ms	3972 KB	Output is correct
3	Correct	0 ms	3972 KB	Output is correct
4	Correct	0 ms	3972 KB	Output is correct
5	Correct	3 ms	3972 KB	Output is correct
6	Correct	3 ms	3972 KB	Output is correct
7	Correct	0 ms	3972 KB	Output is correct
8	Correct	3 ms	3972 KB	Output is correct
9	Correct	3 ms	3972 KB	Output is correct
10	Correct	0 ms	3972 KB	Output is correct
11	Correct	3 ms	3972 KB	Output is correct
12	Correct	3 ms	3972 KB	Output is correct
13	Correct	6 ms	3972 KB	Output is correct
14	Correct	0 ms	3972 KB	Output is correct
15	Correct	3 ms	3972 KB	Output is correct
16	Correct	3 ms	3972 KB	Output is correct
17	Correct	3 ms	3972 KB	Output is correct
18	Correct	3 ms	3972 KB	Output is correct
19	Correct	3 ms	3972 KB	Output is correct
20	Correct	0 ms	3972 KB	Output is correct
21	Correct	13 ms	3972 KB	Output is correct
22	Correct	13 ms	3972 KB	Output is correct
23	Correct	13 ms	3972 KB	Output is correct
24	Correct	19 ms	3972 KB	Output is correct
25	Correct	3 ms	3972 KB	Output is correct
26	Correct	6 ms	3972 KB	Output is correct
27	Correct	3 ms	3972 KB	Output is correct
28	Correct	3 ms	3972 KB	Output is correct
29	Correct	3 ms	3972 KB	Output is correct
30	Correct	19 ms	3972 KB	Output is correct
31	Correct	6 ms	3972 KB	Output is correct
32	Correct	16 ms	3972 KB	Output is correct
33	Correct	0 ms	3972 KB	Output is correct
34	Correct	0 ms	3972 KB	Output is correct
35	Correct	3 ms	3972 KB	Output is correct
36	Correct	13 ms	3972 KB	Output is correct

Subtask #4
16.0 / 16.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	3972 KB	Output is correct
2	Correct	3 ms	3972 KB	Output is correct
3	Correct	0 ms	3972 KB	Output is correct
4	Correct	0 ms	3972 KB	Output is correct
5	Correct	3 ms	3972 KB	Output is correct
6	Correct	3 ms	3972 KB	Output is correct
7	Correct	0 ms	3972 KB	Output is correct
8	Correct	3 ms	3972 KB	Output is correct
9	Correct	3 ms	3972 KB	Output is correct
10	Correct	0 ms	3972 KB	Output is correct
11	Correct	3 ms	3972 KB	Output is correct
12	Correct	3 ms	3972 KB	Output is correct
13	Correct	6 ms	3972 KB	Output is correct
14	Correct	0 ms	3972 KB	Output is correct
15	Correct	3 ms	3972 KB	Output is correct
16	Correct	3 ms	3972 KB	Output is correct
17	Correct	3 ms	3972 KB	Output is correct
18	Correct	3 ms	3972 KB	Output is correct
19	Correct	3 ms	3972 KB	Output is correct
20	Correct	0 ms	3972 KB	Output is correct
21	Correct	13 ms	3972 KB	Output is correct
22	Correct	13 ms	3972 KB	Output is correct
23	Correct	13 ms	3972 KB	Output is correct
24	Correct	19 ms	3972 KB	Output is correct
25	Correct	3 ms	3972 KB	Output is correct
26	Correct	6 ms	3972 KB	Output is correct
27	Correct	3 ms	3972 KB	Output is correct
28	Correct	3 ms	3972 KB	Output is correct
29	Correct	3 ms	3972 KB	Output is correct
30	Correct	19 ms	3972 KB	Output is correct
31	Correct	6 ms	3972 KB	Output is correct
32	Correct	16 ms	3972 KB	Output is correct
33	Correct	0 ms	3972 KB	Output is correct
34	Correct	0 ms	3972 KB	Output is correct
35	Correct	3 ms	3972 KB	Output is correct
36	Correct	13 ms	3972 KB	Output is correct
37	Correct	29 ms	4112 KB	Output is correct
38	Correct	36 ms	4112 KB	Output is correct
39	Correct	9 ms	3972 KB	Output is correct
40	Correct	116 ms	4112 KB	Output is correct
41	Correct	13 ms	3972 KB	Output is correct
42	Correct	83 ms	4112 KB	Output is correct
43	Correct	63 ms	4244 KB	Output is correct
44	Correct	59 ms	4244 KB	Output is correct
45	Correct	59 ms	4244 KB	Output is correct
46	Correct	83 ms	3972 KB	Output is correct
47	Correct	93 ms	4112 KB	Output is correct
48	Correct	39 ms	4244 KB	Output is correct
49	Correct	26 ms	4112 KB	Output is correct
50	Correct	103 ms	4112 KB	Output is correct
51	Correct	23 ms	3972 KB	Output is correct
52	Correct	59 ms	4244 KB	Output is correct

Subtask #5
21.0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	3972 KB	Output is correct
2	Correct	3 ms	3972 KB	Output is correct
3	Correct	0 ms	3972 KB	Output is correct
4	Correct	0 ms	3972 KB	Output is correct
5	Correct	3 ms	3972 KB	Output is correct
6	Correct	3 ms	3972 KB	Output is correct
7	Correct	0 ms	3972 KB	Output is correct
8	Correct	3 ms	3972 KB	Output is correct
9	Correct	3 ms	3972 KB	Output is correct
10	Correct	0 ms	3972 KB	Output is correct
11	Correct	3 ms	3972 KB	Output is correct
12	Correct	3 ms	3972 KB	Output is correct
13	Correct	6 ms	3972 KB	Output is correct
14	Correct	0 ms	3972 KB	Output is correct
15	Correct	3 ms	3972 KB	Output is correct
16	Correct	3 ms	3972 KB	Output is correct
17	Correct	3 ms	3972 KB	Output is correct
18	Correct	3 ms	3972 KB	Output is correct
19	Correct	3 ms	3972 KB	Output is correct
20	Correct	0 ms	3972 KB	Output is correct
21	Correct	13 ms	3972 KB	Output is correct
22	Correct	13 ms	3972 KB	Output is correct
23	Correct	13 ms	3972 KB	Output is correct
24	Correct	19 ms	3972 KB	Output is correct
25	Correct	3 ms	3972 KB	Output is correct
26	Correct	6 ms	3972 KB	Output is correct
27	Correct	3 ms	3972 KB	Output is correct
28	Correct	3 ms	3972 KB	Output is correct
29	Correct	3 ms	3972 KB	Output is correct
30	Correct	19 ms	3972 KB	Output is correct
31	Correct	6 ms	3972 KB	Output is correct
32	Correct	16 ms	3972 KB	Output is correct
33	Correct	0 ms	3972 KB	Output is correct
34	Correct	0 ms	3972 KB	Output is correct
35	Correct	3 ms	3972 KB	Output is correct
36	Correct	13 ms	3972 KB	Output is correct
37	Correct	29 ms	4112 KB	Output is correct
38	Correct	36 ms	4112 KB	Output is correct
39	Correct	9 ms	3972 KB	Output is correct
40	Correct	116 ms	4112 KB	Output is correct
41	Correct	13 ms	3972 KB	Output is correct
42	Correct	83 ms	4112 KB	Output is correct
43	Correct	63 ms	4244 KB	Output is correct
44	Correct	59 ms	4244 KB	Output is correct
45	Correct	59 ms	4244 KB	Output is correct
46	Correct	83 ms	3972 KB	Output is correct
47	Correct	93 ms	4112 KB	Output is correct
48	Correct	39 ms	4244 KB	Output is correct
49	Correct	26 ms	4112 KB	Output is correct
50	Correct	103 ms	4112 KB	Output is correct
51	Correct	23 ms	3972 KB	Output is correct
52	Correct	59 ms	4244 KB	Output is correct
53	Correct	136 ms	4244 KB	Output is correct
54	Correct	176 ms	4244 KB	Output is correct
55	Correct	136 ms	4440 KB	Output is correct
56	Correct	159 ms	4244 KB	Output is correct
57	Correct	139 ms	4440 KB	Output is correct
58	Correct	213 ms	4244 KB	Output is correct
59	Correct	183 ms	4440 KB	Output is correct
60	Correct	69 ms	3972 KB	Output is correct
61	Correct	203 ms	4440 KB	Output is correct
62	Correct	153 ms	4440 KB	Output is correct
63	Correct	139 ms	4440 KB	Output is correct
64	Correct	126 ms	4440 KB	Output is correct
65	Correct	16 ms	3972 KB	Output is correct
66	Correct	39 ms	4112 KB	Output is correct

Subtask #6
35.0 / 35.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	3972 KB	Output is correct
2	Correct	3 ms	3972 KB	Output is correct
3	Correct	0 ms	3972 KB	Output is correct
4	Correct	0 ms	3972 KB	Output is correct
5	Correct	3 ms	3972 KB	Output is correct
6	Correct	3 ms	3972 KB	Output is correct
7	Correct	0 ms	3972 KB	Output is correct
8	Correct	3 ms	3972 KB	Output is correct
9	Correct	3 ms	3972 KB	Output is correct
10	Correct	0 ms	3972 KB	Output is correct
11	Correct	3 ms	3972 KB	Output is correct
12	Correct	3 ms	3972 KB	Output is correct
13	Correct	6 ms	3972 KB	Output is correct
14	Correct	0 ms	3972 KB	Output is correct
15	Correct	3 ms	3972 KB	Output is correct
16	Correct	3 ms	3972 KB	Output is correct
17	Correct	3 ms	3972 KB	Output is correct
18	Correct	3 ms	3972 KB	Output is correct
19	Correct	3 ms	3972 KB	Output is correct
20	Correct	0 ms	3972 KB	Output is correct
21	Correct	13 ms	3972 KB	Output is correct
22	Correct	13 ms	3972 KB	Output is correct
23	Correct	13 ms	3972 KB	Output is correct
24	Correct	19 ms	3972 KB	Output is correct
25	Correct	3 ms	3972 KB	Output is correct
26	Correct	6 ms	3972 KB	Output is correct
27	Correct	3 ms	3972 KB	Output is correct
28	Correct	3 ms	3972 KB	Output is correct
29	Correct	3 ms	3972 KB	Output is correct
30	Correct	19 ms	3972 KB	Output is correct
31	Correct	6 ms	3972 KB	Output is correct
32	Correct	16 ms	3972 KB	Output is correct
33	Correct	0 ms	3972 KB	Output is correct
34	Correct	0 ms	3972 KB	Output is correct
35	Correct	3 ms	3972 KB	Output is correct
36	Correct	13 ms	3972 KB	Output is correct
37	Correct	29 ms	4112 KB	Output is correct
38	Correct	36 ms	4112 KB	Output is correct
39	Correct	9 ms	3972 KB	Output is correct
40	Correct	116 ms	4112 KB	Output is correct
41	Correct	13 ms	3972 KB	Output is correct
42	Correct	83 ms	4112 KB	Output is correct
43	Correct	63 ms	4244 KB	Output is correct
44	Correct	59 ms	4244 KB	Output is correct
45	Correct	59 ms	4244 KB	Output is correct
46	Correct	83 ms	3972 KB	Output is correct
47	Correct	93 ms	4112 KB	Output is correct
48	Correct	39 ms	4244 KB	Output is correct
49	Correct	26 ms	4112 KB	Output is correct
50	Correct	103 ms	4112 KB	Output is correct
51	Correct	23 ms	3972 KB	Output is correct
52	Correct	59 ms	4244 KB	Output is correct
53	Correct	136 ms	4244 KB	Output is correct
54	Correct	176 ms	4244 KB	Output is correct
55	Correct	136 ms	4440 KB	Output is correct
56	Correct	159 ms	4244 KB	Output is correct
57	Correct	139 ms	4440 KB	Output is correct
58	Correct	213 ms	4244 KB	Output is correct
59	Correct	183 ms	4440 KB	Output is correct
60	Correct	69 ms	3972 KB	Output is correct
61	Correct	203 ms	4440 KB	Output is correct
62	Correct	153 ms	4440 KB	Output is correct
63	Correct	139 ms	4440 KB	Output is correct
64	Correct	126 ms	4440 KB	Output is correct
65	Correct	16 ms	3972 KB	Output is correct
66	Correct	39 ms	4112 KB	Output is correct
67	Correct	276 ms	4440 KB	Output is correct
68	Correct	143 ms	3972 KB	Output is correct
69	Correct	489 ms	4824 KB	Output is correct
70	Correct	686 ms	4440 KB	Output is correct
71	Correct	593 ms	4440 KB	Output is correct
72	Correct	973 ms	3972 KB	Output is correct
73	Correct	923 ms	3972 KB	Output is correct
74	Correct	516 ms	4824 KB	Output is correct
75	Correct	553 ms	4824 KB	Output is correct
76	Correct	376 ms	4824 KB	Output is correct
77	Correct	446 ms	4824 KB	Output is correct

답안 #37474

Compilation message

Subtask #1 6.0 / 6.0

Subtask #2 7.0 / 7.0

Subtask #3 15.0 / 15.0

Subtask #4 16.0 / 16.0

Subtask #5 21.0 / 21.0

Subtask #6 35.0 / 35.0

Subtask #1
6.0 / 6.0

Subtask #2
7.0 / 7.0

Subtask #3
15.0 / 15.0

Subtask #4
16.0 / 16.0

Subtask #5
21.0 / 21.0

Subtask #6
35.0 / 35.0