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Submission #95522

# Submission time Handle Problem Language Result Execution time Memory
95522 2019-02-01T18:01:16 Z choikiwon Bootfall (IZhO17_bootfall) C++17
100 / 100
 580 ms 2168 KB 
#include<bits/stdc++.h>
using namespace std;

const int MN = 502;
const int SQ = 50;

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 376 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 424 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 4 ms 376 KB Output is correct
8 Correct 7 ms 508 KB Output is correct
9 Correct 6 ms 380 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 376 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 424 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 4 ms 376 KB Output is correct
8 Correct 7 ms 508 KB Output is correct
9 Correct 6 ms 380 KB Output is correct
10 Correct 21 ms 532 KB Output is correct
11 Correct 22 ms 376 KB Output is correct
12 Correct 21 ms 504 KB Output is correct
13 Correct 17 ms 380 KB Output is correct
14 Correct 19 ms 504 KB Output is correct
15 Correct 19 ms 376 KB Output is correct
16 Correct 21 ms 504 KB Output is correct
17 Correct 11 ms 504 KB Output is correct
18 Correct 16 ms 504 KB Output is correct
19 Correct 18 ms 504 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 376 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 424 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 4 ms 376 KB Output is correct
8 Correct 7 ms 508 KB Output is correct
9 Correct 6 ms 380 KB Output is correct
10 Correct 21 ms 532 KB Output is correct
11 Correct 22 ms 376 KB Output is correct
12 Correct 21 ms 504 KB Output is correct
13 Correct 17 ms 380 KB Output is correct
14 Correct 19 ms 504 KB Output is correct
15 Correct 19 ms 376 KB Output is correct
16 Correct 21 ms 504 KB Output is correct
17 Correct 11 ms 504 KB Output is correct
18 Correct 16 ms 504 KB Output is correct
19 Correct 18 ms 504 KB Output is correct
20 Correct 22 ms 504 KB Output is correct
21 Correct 52 ms 508 KB Output is correct
22 Correct 64 ms 552 KB Output is correct
23 Correct 45 ms 380 KB Output is correct
24 Correct 79 ms 508 KB Output is correct
25 Correct 79 ms 504 KB Output is correct
26 Correct 89 ms 504 KB Output is correct
27 Correct 140 ms 632 KB Output is correct
28 Correct 88 ms 508 KB Output is correct
29 Correct 96 ms 504 KB Output is correct
30 Correct 91 ms 504 KB Output is correct
31 Correct 89 ms 504 KB Output is correct
32 Correct 89 ms 632 KB Output is correct
33 Correct 88 ms 504 KB Output is correct
34 Correct 95 ms 504 KB Output is correct
35 Correct 90 ms 504 KB Output is correct
36 Correct 89 ms 544 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 376 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 424 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 4 ms 376 KB Output is correct
8 Correct 7 ms 508 KB Output is correct
9 Correct 6 ms 380 KB Output is correct
10 Correct 21 ms 532 KB Output is correct
11 Correct 22 ms 376 KB Output is correct
12 Correct 21 ms 504 KB Output is correct
13 Correct 17 ms 380 KB Output is correct
14 Correct 19 ms 504 KB Output is correct
15 Correct 19 ms 376 KB Output is correct
16 Correct 21 ms 504 KB Output is correct
17 Correct 11 ms 504 KB Output is correct
18 Correct 16 ms 504 KB Output is correct
19 Correct 18 ms 504 KB Output is correct
20 Correct 22 ms 504 KB Output is correct
21 Correct 52 ms 508 KB Output is correct
22 Correct 64 ms 552 KB Output is correct
23 Correct 45 ms 380 KB Output is correct
24 Correct 79 ms 508 KB Output is correct
25 Correct 79 ms 504 KB Output is correct
26 Correct 89 ms 504 KB Output is correct
27 Correct 140 ms 632 KB Output is correct
28 Correct 88 ms 508 KB Output is correct
29 Correct 96 ms 504 KB Output is correct
30 Correct 91 ms 504 KB Output is correct
31 Correct 89 ms 504 KB Output is correct
32 Correct 89 ms 632 KB Output is correct
33 Correct 88 ms 504 KB Output is correct
34 Correct 95 ms 504 KB Output is correct
35 Correct 90 ms 504 KB Output is correct
36 Correct 89 ms 544 KB Output is correct
37 Correct 182 ms 604 KB Output is correct
38 Correct 186 ms 568 KB Output is correct
39 Correct 226 ms 728 KB Output is correct
40 Correct 243 ms 624 KB Output is correct
41 Correct 247 ms 888 KB Output is correct
42 Correct 235 ms 760 KB Output is correct
43 Correct 223 ms 868 KB Output is correct
44 Correct 244 ms 760 KB Output is correct
45 Correct 244 ms 760 KB Output is correct
46 Correct 238 ms 760 KB Output is correct
47 Correct 238 ms 760 KB Output is correct
48 Correct 244 ms 760 KB Output is correct
49 Correct 231 ms 888 KB Output is correct
50 Correct 242 ms 764 KB Output is correct
51 Correct 2 ms 376 KB Output is correct
52 Correct 254 ms 920 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 376 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 424 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 4 ms 376 KB Output is correct
8 Correct 7 ms 508 KB Output is correct
9 Correct 6 ms 380 KB Output is correct
10 Correct 21 ms 532 KB Output is correct
11 Correct 22 ms 376 KB Output is correct
12 Correct 21 ms 504 KB Output is correct
13 Correct 17 ms 380 KB Output is correct
14 Correct 19 ms 504 KB Output is correct
15 Correct 19 ms 376 KB Output is correct
16 Correct 21 ms 504 KB Output is correct
17 Correct 11 ms 504 KB Output is correct
18 Correct 16 ms 504 KB Output is correct
19 Correct 18 ms 504 KB Output is correct
20 Correct 22 ms 504 KB Output is correct
21 Correct 52 ms 508 KB Output is correct
22 Correct 64 ms 552 KB Output is correct
23 Correct 45 ms 380 KB Output is correct
24 Correct 79 ms 508 KB Output is correct
25 Correct 79 ms 504 KB Output is correct
26 Correct 89 ms 504 KB Output is correct
27 Correct 140 ms 632 KB Output is correct
28 Correct 88 ms 508 KB Output is correct
29 Correct 96 ms 504 KB Output is correct
30 Correct 91 ms 504 KB Output is correct
31 Correct 89 ms 504 KB Output is correct
32 Correct 89 ms 632 KB Output is correct
33 Correct 88 ms 504 KB Output is correct
34 Correct 95 ms 504 KB Output is correct
35 Correct 90 ms 504 KB Output is correct
36 Correct 89 ms 544 KB Output is correct
37 Correct 182 ms 604 KB Output is correct
38 Correct 186 ms 568 KB Output is correct
39 Correct 226 ms 728 KB Output is correct
40 Correct 243 ms 624 KB Output is correct
41 Correct 247 ms 888 KB Output is correct
42 Correct 235 ms 760 KB Output is correct
43 Correct 223 ms 868 KB Output is correct
44 Correct 244 ms 760 KB Output is correct
45 Correct 244 ms 760 KB Output is correct
46 Correct 238 ms 760 KB Output is correct
47 Correct 238 ms 760 KB Output is correct
48 Correct 244 ms 760 KB Output is correct
49 Correct 231 ms 888 KB Output is correct
50 Correct 242 ms 764 KB Output is correct
51 Correct 2 ms 376 KB Output is correct
52 Correct 254 ms 920 KB Output is correct
53 Correct 296 ms 888 KB Output is correct
54 Correct 333 ms 760 KB Output is correct
55 Correct 358 ms 1144 KB Output is correct
56 Correct 298 ms 760 KB Output is correct
57 Correct 351 ms 1272 KB Output is correct
58 Correct 349 ms 868 KB Output is correct
59 Correct 348 ms 916 KB Output is correct
60 Correct 2 ms 256 KB Output is correct
61 Correct 355 ms 1016 KB Output is correct
62 Correct 321 ms 1116 KB Output is correct
63 Correct 321 ms 1148 KB Output is correct
64 Correct 303 ms 1272 KB Output is correct
65 Correct 318 ms 676 KB Output is correct
66 Correct 301 ms 804 KB Output is correct

Subtask #6
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 376 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 424 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 4 ms 376 KB Output is correct
8 Correct 7 ms 508 KB Output is correct
9 Correct 6 ms 380 KB Output is correct
10 Correct 21 ms 532 KB Output is correct
11 Correct 22 ms 376 KB Output is correct
12 Correct 21 ms 504 KB Output is correct
13 Correct 17 ms 380 KB Output is correct
14 Correct 19 ms 504 KB Output is correct
15 Correct 19 ms 376 KB Output is correct
16 Correct 21 ms 504 KB Output is correct
17 Correct 11 ms 504 KB Output is correct
18 Correct 16 ms 504 KB Output is correct
19 Correct 18 ms 504 KB Output is correct
20 Correct 22 ms 504 KB Output is correct
21 Correct 52 ms 508 KB Output is correct
22 Correct 64 ms 552 KB Output is correct
23 Correct 45 ms 380 KB Output is correct
24 Correct 79 ms 508 KB Output is correct
25 Correct 79 ms 504 KB Output is correct
26 Correct 89 ms 504 KB Output is correct
27 Correct 140 ms 632 KB Output is correct
28 Correct 88 ms 508 KB Output is correct
29 Correct 96 ms 504 KB Output is correct
30 Correct 91 ms 504 KB Output is correct
31 Correct 89 ms 504 KB Output is correct
32 Correct 89 ms 632 KB Output is correct
33 Correct 88 ms 504 KB Output is correct
34 Correct 95 ms 504 KB Output is correct
35 Correct 90 ms 504 KB Output is correct
36 Correct 89 ms 544 KB Output is correct
37 Correct 182 ms 604 KB Output is correct
38 Correct 186 ms 568 KB Output is correct
39 Correct 226 ms 728 KB Output is correct
40 Correct 243 ms 624 KB Output is correct
41 Correct 247 ms 888 KB Output is correct
42 Correct 235 ms 760 KB Output is correct
43 Correct 223 ms 868 KB Output is correct
44 Correct 244 ms 760 KB Output is correct
45 Correct 244 ms 760 KB Output is correct
46 Correct 238 ms 760 KB Output is correct
47 Correct 238 ms 760 KB Output is correct
48 Correct 244 ms 760 KB Output is correct
49 Correct 231 ms 888 KB Output is correct
50 Correct 242 ms 764 KB Output is correct
51 Correct 2 ms 376 KB Output is correct
52 Correct 254 ms 920 KB Output is correct
53 Correct 296 ms 888 KB Output is correct
54 Correct 333 ms 760 KB Output is correct
55 Correct 358 ms 1144 KB Output is correct
56 Correct 298 ms 760 KB Output is correct
57 Correct 351 ms 1272 KB Output is correct
58 Correct 349 ms 868 KB Output is correct
59 Correct 348 ms 916 KB Output is correct
60 Correct 2 ms 256 KB Output is correct
61 Correct 355 ms 1016 KB Output is correct
62 Correct 321 ms 1116 KB Output is correct
63 Correct 321 ms 1148 KB Output is correct
64 Correct 303 ms 1272 KB Output is correct
65 Correct 318 ms 676 KB Output is correct
66 Correct 301 ms 804 KB Output is correct
67 Correct 407 ms 1004 KB Output is correct
68 Correct 8 ms 376 KB Output is correct
69 Correct 551 ms 1960 KB Output is correct
70 Correct 541 ms 1400 KB Output is correct
71 Correct 544 ms 1272 KB Output is correct
72 Correct 527 ms 1016 KB Output is correct
73 Correct 502 ms 892 KB Output is correct
74 Correct 580 ms 2040 KB Output is correct
75 Correct 522 ms 1680 KB Output is correct
76 Correct 572 ms 2168 KB Output is correct
77 Correct 550 ms 2168 KB Output is correct