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Submission #95520

# Submission time Handle Problem Language Result Execution time Memory
95520 2019-02-01T18:00:40 Z choikiwon Bootfall (IZhO17_bootfall) C++17
100 / 100
 555 ms 2092 KB 
#include<bits/stdc++.h>
using namespace std;

const int MN = 502;
const int SQ = 10;

int N;
int A[MN];
bitset<MN * MN> dp, tmp;
int cnt[MN * MN];

int main() {
    scanf("%d", &N);

    int sum = 0;
    for(int i = 0; i < N; i++) {
        scanf("%d", &A[i]);
        sum += A[i];
    }
    if(sum % 2) {
        printf("0");
        return 0;
    }

    dp[0] = 1;
    for(int i = 0; i < N; i++) {
        dp |= (dp << A[i]);
    }
    if(!dp[sum / 2]) {
        printf("0");
        return 0;
    }

    for(int l = 0; l < N; l += SQ) {
        int r = min(N, l + SQ) - 1;

        dp.reset();
        dp[0] = 1;
        for(int i = 0; i < N; i++) {
            if(l <= i && i <= r) continue;
            dp |= (dp << A[i]);
        }

        for(int i = l; i <= r; i++) {
            tmp = dp;

            for(int j = l; j <= r; j++) {
                if(j == i) continue;
                tmp |= (tmp << A[j]);
            }

            for(int j = 0; j < MN * MN; j++) {
                if(tmp[j] && 2 * j + A[i] - sum >= 0) {
                    cnt[ 2 * j + A[i] - sum ]++;
                }
            }
        }
    }
    int ans = 0;
    for(int i = 0; i < MN * MN; i++) {
        if(cnt[i] == N) ans++;
    }
    printf("%d\n", ans);
    for(int i = 0; i < MN * MN; i++) {
        if(cnt[i] == N) printf("%d ", i);
    }
}

Compilation message

bootfall.cpp: In function 'int main()':
bootfall.cpp:13:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &N);
     ~~~~~^~~~~~~~~~
bootfall.cpp:17:14: 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

# Verdict Execution time Memory Grader output
1 Correct 4 ms 504 KB Output is correct
2 Correct 5 ms 504 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 4 ms 504 KB Output is correct
5 Correct 8 ms 508 KB Output is correct
6 Correct 6 ms 504 KB Output is correct
7 Correct 5 ms 504 KB Output is correct
8 Correct 7 ms 504 KB Output is correct
9 Correct 6 ms 376 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 504 KB Output is correct
2 Correct 5 ms 504 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 4 ms 504 KB Output is correct
5 Correct 8 ms 508 KB Output is correct
6 Correct 6 ms 504 KB Output is correct
7 Correct 5 ms 504 KB Output is correct
8 Correct 7 ms 504 KB Output is correct
9 Correct 6 ms 376 KB Output is correct
10 Correct 15 ms 508 KB Output is correct
11 Correct 15 ms 488 KB Output is correct
12 Correct 15 ms 376 KB Output is correct
13 Correct 15 ms 488 KB Output is correct
14 Correct 14 ms 376 KB Output is correct
15 Correct 23 ms 376 KB Output is correct
16 Correct 15 ms 376 KB Output is correct
17 Correct 10 ms 504 KB Output is correct
18 Correct 12 ms 376 KB Output is correct
19 Correct 14 ms 376 KB Output is correct
20 Correct 22 ms 504 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 504 KB Output is correct
2 Correct 5 ms 504 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 4 ms 504 KB Output is correct
5 Correct 8 ms 508 KB Output is correct
6 Correct 6 ms 504 KB Output is correct
7 Correct 5 ms 504 KB Output is correct
8 Correct 7 ms 504 KB Output is correct
9 Correct 6 ms 376 KB Output is correct
10 Correct 15 ms 508 KB Output is correct
11 Correct 15 ms 488 KB Output is correct
12 Correct 15 ms 376 KB Output is correct
13 Correct 15 ms 488 KB Output is correct
14 Correct 14 ms 376 KB Output is correct
15 Correct 23 ms 376 KB Output is correct
16 Correct 15 ms 376 KB Output is correct
17 Correct 10 ms 504 KB Output is correct
18 Correct 12 ms 376 KB Output is correct
19 Correct 14 ms 376 KB Output is correct
20 Correct 22 ms 504 KB Output is correct
21 Correct 44 ms 452 KB Output is correct
22 Correct 37 ms 504 KB Output is correct
23 Correct 26 ms 504 KB Output is correct
24 Correct 49 ms 504 KB Output is correct
25 Correct 50 ms 504 KB Output is correct
26 Correct 54 ms 504 KB Output is correct
27 Correct 58 ms 504 KB Output is correct
28 Correct 54 ms 504 KB Output is correct
29 Correct 54 ms 528 KB Output is correct
30 Correct 52 ms 584 KB Output is correct
31 Correct 52 ms 632 KB Output is correct
32 Correct 52 ms 536 KB Output is correct
33 Correct 51 ms 504 KB Output is correct
34 Correct 57 ms 504 KB Output is correct
35 Correct 53 ms 504 KB Output is correct
36 Correct 54 ms 632 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 504 KB Output is correct
2 Correct 5 ms 504 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 4 ms 504 KB Output is correct
5 Correct 8 ms 508 KB Output is correct
6 Correct 6 ms 504 KB Output is correct
7 Correct 5 ms 504 KB Output is correct
8 Correct 7 ms 504 KB Output is correct
9 Correct 6 ms 376 KB Output is correct
10 Correct 15 ms 508 KB Output is correct
11 Correct 15 ms 488 KB Output is correct
12 Correct 15 ms 376 KB Output is correct
13 Correct 15 ms 488 KB Output is correct
14 Correct 14 ms 376 KB Output is correct
15 Correct 23 ms 376 KB Output is correct
16 Correct 15 ms 376 KB Output is correct
17 Correct 10 ms 504 KB Output is correct
18 Correct 12 ms 376 KB Output is correct
19 Correct 14 ms 376 KB Output is correct
20 Correct 22 ms 504 KB Output is correct
21 Correct 44 ms 452 KB Output is correct
22 Correct 37 ms 504 KB Output is correct
23 Correct 26 ms 504 KB Output is correct
24 Correct 49 ms 504 KB Output is correct
25 Correct 50 ms 504 KB Output is correct
26 Correct 54 ms 504 KB Output is correct
27 Correct 58 ms 504 KB Output is correct
28 Correct 54 ms 504 KB Output is correct
29 Correct 54 ms 528 KB Output is correct
30 Correct 52 ms 584 KB Output is correct
31 Correct 52 ms 632 KB Output is correct
32 Correct 52 ms 536 KB Output is correct
33 Correct 51 ms 504 KB Output is correct
34 Correct 57 ms 504 KB Output is correct
35 Correct 53 ms 504 KB Output is correct
36 Correct 54 ms 632 KB Output is correct
37 Correct 126 ms 604 KB Output is correct
38 Correct 129 ms 600 KB Output is correct
39 Correct 169 ms 728 KB Output is correct
40 Correct 195 ms 632 KB Output is correct
41 Correct 190 ms 888 KB Output is correct
42 Correct 189 ms 608 KB Output is correct
43 Correct 179 ms 888 KB Output is correct
44 Correct 175 ms 836 KB Output is correct
45 Correct 183 ms 836 KB Output is correct
46 Correct 199 ms 504 KB Output is correct
47 Correct 175 ms 632 KB Output is correct
48 Correct 178 ms 760 KB Output is correct
49 Correct 190 ms 888 KB Output is correct
50 Correct 182 ms 632 KB Output is correct
51 Correct 2 ms 376 KB Output is correct
52 Correct 200 ms 1016 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 504 KB Output is correct
2 Correct 5 ms 504 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 4 ms 504 KB Output is correct
5 Correct 8 ms 508 KB Output is correct
6 Correct 6 ms 504 KB Output is correct
7 Correct 5 ms 504 KB Output is correct
8 Correct 7 ms 504 KB Output is correct
9 Correct 6 ms 376 KB Output is correct
10 Correct 15 ms 508 KB Output is correct
11 Correct 15 ms 488 KB Output is correct
12 Correct 15 ms 376 KB Output is correct
13 Correct 15 ms 488 KB Output is correct
14 Correct 14 ms 376 KB Output is correct
15 Correct 23 ms 376 KB Output is correct
16 Correct 15 ms 376 KB Output is correct
17 Correct 10 ms 504 KB Output is correct
18 Correct 12 ms 376 KB Output is correct
19 Correct 14 ms 376 KB Output is correct
20 Correct 22 ms 504 KB Output is correct
21 Correct 44 ms 452 KB Output is correct
22 Correct 37 ms 504 KB Output is correct
23 Correct 26 ms 504 KB Output is correct
24 Correct 49 ms 504 KB Output is correct
25 Correct 50 ms 504 KB Output is correct
26 Correct 54 ms 504 KB Output is correct
27 Correct 58 ms 504 KB Output is correct
28 Correct 54 ms 504 KB Output is correct
29 Correct 54 ms 528 KB Output is correct
30 Correct 52 ms 584 KB Output is correct
31 Correct 52 ms 632 KB Output is correct
32 Correct 52 ms 536 KB Output is correct
33 Correct 51 ms 504 KB Output is correct
34 Correct 57 ms 504 KB Output is correct
35 Correct 53 ms 504 KB Output is correct
36 Correct 54 ms 632 KB Output is correct
37 Correct 126 ms 604 KB Output is correct
38 Correct 129 ms 600 KB Output is correct
39 Correct 169 ms 728 KB Output is correct
40 Correct 195 ms 632 KB Output is correct
41 Correct 190 ms 888 KB Output is correct
42 Correct 189 ms 608 KB Output is correct
43 Correct 179 ms 888 KB Output is correct
44 Correct 175 ms 836 KB Output is correct
45 Correct 183 ms 836 KB Output is correct
46 Correct 199 ms 504 KB Output is correct
47 Correct 175 ms 632 KB Output is correct
48 Correct 178 ms 760 KB Output is correct
49 Correct 190 ms 888 KB Output is correct
50 Correct 182 ms 632 KB Output is correct
51 Correct 2 ms 376 KB Output is correct
52 Correct 200 ms 1016 KB Output is correct
53 Correct 256 ms 760 KB Output is correct
54 Correct 295 ms 760 KB Output is correct
55 Correct 303 ms 1272 KB Output is correct
56 Correct 243 ms 760 KB Output is correct
57 Correct 308 ms 1272 KB Output is correct
58 Correct 303 ms 860 KB Output is correct
59 Correct 300 ms 988 KB Output is correct
60 Correct 2 ms 376 KB Output is correct
61 Correct 304 ms 988 KB Output is correct
62 Correct 261 ms 1272 KB Output is correct
63 Correct 270 ms 1272 KB Output is correct
64 Correct 261 ms 1148 KB Output is correct
65 Correct 251 ms 760 KB Output is correct
66 Correct 239 ms 760 KB Output is correct

Subtask #6
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 504 KB Output is correct
2 Correct 5 ms 504 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 4 ms 504 KB Output is correct
5 Correct 8 ms 508 KB Output is correct
6 Correct 6 ms 504 KB Output is correct
7 Correct 5 ms 504 KB Output is correct
8 Correct 7 ms 504 KB Output is correct
9 Correct 6 ms 376 KB Output is correct
10 Correct 15 ms 508 KB Output is correct
11 Correct 15 ms 488 KB Output is correct
12 Correct 15 ms 376 KB Output is correct
13 Correct 15 ms 488 KB Output is correct
14 Correct 14 ms 376 KB Output is correct
15 Correct 23 ms 376 KB Output is correct
16 Correct 15 ms 376 KB Output is correct
17 Correct 10 ms 504 KB Output is correct
18 Correct 12 ms 376 KB Output is correct
19 Correct 14 ms 376 KB Output is correct
20 Correct 22 ms 504 KB Output is correct
21 Correct 44 ms 452 KB Output is correct
22 Correct 37 ms 504 KB Output is correct
23 Correct 26 ms 504 KB Output is correct
24 Correct 49 ms 504 KB Output is correct
25 Correct 50 ms 504 KB Output is correct
26 Correct 54 ms 504 KB Output is correct
27 Correct 58 ms 504 KB Output is correct
28 Correct 54 ms 504 KB Output is correct
29 Correct 54 ms 528 KB Output is correct
30 Correct 52 ms 584 KB Output is correct
31 Correct 52 ms 632 KB Output is correct
32 Correct 52 ms 536 KB Output is correct
33 Correct 51 ms 504 KB Output is correct
34 Correct 57 ms 504 KB Output is correct
35 Correct 53 ms 504 KB Output is correct
36 Correct 54 ms 632 KB Output is correct
37 Correct 126 ms 604 KB Output is correct
38 Correct 129 ms 600 KB Output is correct
39 Correct 169 ms 728 KB Output is correct
40 Correct 195 ms 632 KB Output is correct
41 Correct 190 ms 888 KB Output is correct
42 Correct 189 ms 608 KB Output is correct
43 Correct 179 ms 888 KB Output is correct
44 Correct 175 ms 836 KB Output is correct
45 Correct 183 ms 836 KB Output is correct
46 Correct 199 ms 504 KB Output is correct
47 Correct 175 ms 632 KB Output is correct
48 Correct 178 ms 760 KB Output is correct
49 Correct 190 ms 888 KB Output is correct
50 Correct 182 ms 632 KB Output is correct
51 Correct 2 ms 376 KB Output is correct
52 Correct 200 ms 1016 KB Output is correct
53 Correct 256 ms 760 KB Output is correct
54 Correct 295 ms 760 KB Output is correct
55 Correct 303 ms 1272 KB Output is correct
56 Correct 243 ms 760 KB Output is correct
57 Correct 308 ms 1272 KB Output is correct
58 Correct 303 ms 860 KB Output is correct
59 Correct 300 ms 988 KB Output is correct
60 Correct 2 ms 376 KB Output is correct
61 Correct 304 ms 988 KB Output is correct
62 Correct 261 ms 1272 KB Output is correct
63 Correct 270 ms 1272 KB Output is correct
64 Correct 261 ms 1148 KB Output is correct
65 Correct 251 ms 760 KB Output is correct
66 Correct 239 ms 760 KB Output is correct
67 Correct 367 ms 988 KB Output is correct
68 Correct 8 ms 376 KB Output is correct
69 Correct 555 ms 2040 KB Output is correct
70 Correct 524 ms 1400 KB Output is correct
71 Correct 517 ms 1264 KB Output is correct
72 Correct 544 ms 988 KB Output is correct
73 Correct 529 ms 1016 KB Output is correct
74 Correct 542 ms 2040 KB Output is correct
75 Correct 548 ms 1784 KB Output is correct
76 Correct 538 ms 2040 KB Output is correct
77 Correct 539 ms 2092 KB Output is correct