oj.uz

Submission #36144

# Submission time Handle Problem Language Result Execution time Memory
36144 2017-12-06T04:11:55 Z minhtung0404 Bootfall (IZhO17_bootfall) C++14
65 / 100
 1000 ms 3920 KB 
#include<bits/stdc++.h>
const int N = 505;
const int mod = 1e9 + 7;
using namespace std;

vector <int> dp[2];
int n, sum, a[N], cnt;
bool ck[N*N];

void add(int& a, int b){
    a += b; if (a >= mod) a -= mod;
}

void sub(int& a, int b){
    a -= b; if (a < 0) a += mod;
}

void solve(int num){
    for (int i = 0; i <= sum; i++){
        dp[1][i] = dp[0][i];
        if (i >= a[num]) sub(dp[1][i], dp[1][i-a[num]]);
        if (dp[1][i] == 0 && 2*i+a[num]-sum >= 0) ck[2*i+a[num]-sum] = 1;
    }
}

int main(){
    scanf("%d", &n);
    for (int i = 1; i <= n; i++) {scanf("%d", &a[i]); sum += a[i];}
    dp[0].assign(sum+1, 0); dp[1].assign(sum+1, 0); dp[0][0] = 1;
    for (int i = 1; i <= n; i++){
        for (int j = 0; j <= sum; j++){
            dp[1][j] = dp[0][j];
            if (j >= a[i]) add(dp[1][j], dp[0][j-a[i]]);
        }
        dp[0].swap(dp[1]);
    }
    if (sum % 2 == 1 || dp[0][sum/2] == 0){
        printf("0");
        return 0;
    }
    int check = a[1]%2;
    for (int i = 1; i <= n; i++) if (a[i] % 2 != check) {check = -1; break;}
    if (check == -1) {
        printf("0");
        return 0;
    }
    for (int i = 1; i <= n; i++) solve(i);
    for (int i = check; i <= sum; i+=2) if (ck[i] == 0) cnt++;
    printf("%d\n", cnt);
    for (int i = check; i <= sum; i+=2) if (ck[i] == 0) printf("%d ", i);
}

Compilation message

bootfall.cpp: In function 'int main()':
bootfall.cpp:27:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
                    ^
bootfall.cpp:28:53: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for (int i = 1; i <= n; i++) {scanf("%d", &a[i]); sum += a[i];}
                                                     ^

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2264 KB Output is correct
2 Correct 0 ms 2264 KB Output is correct
3 Correct 0 ms 2264 KB Output is correct
4 Correct 0 ms 2264 KB Output is correct
5 Correct 0 ms 2264 KB Output is correct
6 Correct 0 ms 2264 KB Output is correct
7 Correct 0 ms 2264 KB Output is correct
8 Correct 0 ms 2264 KB Output is correct
9 Correct 0 ms 2264 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2264 KB Output is correct
2 Correct 0 ms 2264 KB Output is correct
3 Correct 0 ms 2264 KB Output is correct
4 Correct 0 ms 2264 KB Output is correct
5 Correct 0 ms 2264 KB Output is correct
6 Correct 0 ms 2264 KB Output is correct
7 Correct 0 ms 2264 KB Output is correct
8 Correct 0 ms 2264 KB Output is correct
9 Correct 0 ms 2264 KB Output is correct
10 Correct 0 ms 2264 KB Output is correct
11 Correct 0 ms 2264 KB Output is correct
12 Correct 0 ms 2264 KB Output is correct
13 Correct 0 ms 2264 KB Output is correct
14 Correct 0 ms 2264 KB Output is correct
15 Correct 0 ms 2264 KB Output is correct
16 Correct 0 ms 2264 KB Output is correct
17 Correct 0 ms 2264 KB Output is correct
18 Correct 0 ms 2264 KB Output is correct
19 Correct 0 ms 2264 KB Output is correct
20 Correct 0 ms 2264 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2264 KB Output is correct
2 Correct 0 ms 2264 KB Output is correct
3 Correct 0 ms 2264 KB Output is correct
4 Correct 0 ms 2264 KB Output is correct
5 Correct 0 ms 2264 KB Output is correct
6 Correct 0 ms 2264 KB Output is correct
7 Correct 0 ms 2264 KB Output is correct
8 Correct 0 ms 2264 KB Output is correct
9 Correct 0 ms 2264 KB Output is correct
10 Correct 0 ms 2264 KB Output is correct
11 Correct 0 ms 2264 KB Output is correct
12 Correct 0 ms 2264 KB Output is correct
13 Correct 0 ms 2264 KB Output is correct
14 Correct 0 ms 2264 KB Output is correct
15 Correct 0 ms 2264 KB Output is correct
16 Correct 0 ms 2264 KB Output is correct
17 Correct 0 ms 2264 KB Output is correct
18 Correct 0 ms 2264 KB Output is correct
19 Correct 0 ms 2264 KB Output is correct
20 Correct 0 ms 2264 KB Output is correct
21 Correct 0 ms 2264 KB Output is correct
22 Correct 3 ms 2264 KB Output is correct
23 Correct 0 ms 2264 KB Output is correct
24 Correct 3 ms 2264 KB Output is correct
25 Correct 9 ms 2408 KB Output is correct
26 Correct 9 ms 2416 KB Output is correct
27 Correct 6 ms 2408 KB Output is correct
28 Correct 9 ms 2412 KB Output is correct
29 Correct 6 ms 2416 KB Output is correct
30 Correct 0 ms 2264 KB Output is correct
31 Correct 9 ms 2400 KB Output is correct
32 Correct 6 ms 2264 KB Output is correct
33 Correct 3 ms 2420 KB Output is correct
34 Correct 3 ms 2416 KB Output is correct
35 Correct 6 ms 2416 KB Output is correct
36 Correct 3 ms 2264 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2264 KB Output is correct
2 Correct 0 ms 2264 KB Output is correct
3 Correct 0 ms 2264 KB Output is correct
4 Correct 0 ms 2264 KB Output is correct
5 Correct 0 ms 2264 KB Output is correct
6 Correct 0 ms 2264 KB Output is correct
7 Correct 0 ms 2264 KB Output is correct
8 Correct 0 ms 2264 KB Output is correct
9 Correct 0 ms 2264 KB Output is correct
10 Correct 0 ms 2264 KB Output is correct
11 Correct 0 ms 2264 KB Output is correct
12 Correct 0 ms 2264 KB Output is correct
13 Correct 0 ms 2264 KB Output is correct
14 Correct 0 ms 2264 KB Output is correct
15 Correct 0 ms 2264 KB Output is correct
16 Correct 0 ms 2264 KB Output is correct
17 Correct 0 ms 2264 KB Output is correct
18 Correct 0 ms 2264 KB Output is correct
19 Correct 0 ms 2264 KB Output is correct
20 Correct 0 ms 2264 KB Output is correct
21 Correct 0 ms 2264 KB Output is correct
22 Correct 3 ms 2264 KB Output is correct
23 Correct 0 ms 2264 KB Output is correct
24 Correct 3 ms 2264 KB Output is correct
25 Correct 9 ms 2408 KB Output is correct
26 Correct 9 ms 2416 KB Output is correct
27 Correct 6 ms 2408 KB Output is correct
28 Correct 9 ms 2412 KB Output is correct
29 Correct 6 ms 2416 KB Output is correct
30 Correct 0 ms 2264 KB Output is correct
31 Correct 9 ms 2400 KB Output is correct
32 Correct 6 ms 2264 KB Output is correct
33 Correct 3 ms 2420 KB Output is correct
34 Correct 3 ms 2416 KB Output is correct
35 Correct 6 ms 2416 KB Output is correct
36 Correct 3 ms 2264 KB Output is correct
37 Correct 46 ms 2416 KB Output is correct
38 Correct 46 ms 2416 KB Output is correct
39 Correct 69 ms 2752 KB Output is correct
40 Correct 113 ms 2468 KB Output is correct
41 Correct 86 ms 2840 KB Output is correct
42 Correct 99 ms 2456 KB Output is correct
43 Correct 169 ms 2696 KB Output is correct
44 Correct 176 ms 2704 KB Output is correct
45 Correct 183 ms 2712 KB Output is correct
46 Correct 76 ms 2464 KB Output is correct
47 Correct 106 ms 2600 KB Output is correct
48 Correct 159 ms 2744 KB Output is correct
49 Correct 133 ms 2752 KB Output is correct
50 Correct 119 ms 2600 KB Output is correct
51 Correct 33 ms 2464 KB Output is correct
52 Correct 229 ms 2816 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2264 KB Output is correct
2 Correct 0 ms 2264 KB Output is correct
3 Correct 0 ms 2264 KB Output is correct
4 Correct 0 ms 2264 KB Output is correct
5 Correct 0 ms 2264 KB Output is correct
6 Correct 0 ms 2264 KB Output is correct
7 Correct 0 ms 2264 KB Output is correct
8 Correct 0 ms 2264 KB Output is correct
9 Correct 0 ms 2264 KB Output is correct
10 Correct 0 ms 2264 KB Output is correct
11 Correct 0 ms 2264 KB Output is correct
12 Correct 0 ms 2264 KB Output is correct
13 Correct 0 ms 2264 KB Output is correct
14 Correct 0 ms 2264 KB Output is correct
15 Correct 0 ms 2264 KB Output is correct
16 Correct 0 ms 2264 KB Output is correct
17 Correct 0 ms 2264 KB Output is correct
18 Correct 0 ms 2264 KB Output is correct
19 Correct 0 ms 2264 KB Output is correct
20 Correct 0 ms 2264 KB Output is correct
21 Correct 0 ms 2264 KB Output is correct
22 Correct 3 ms 2264 KB Output is correct
23 Correct 0 ms 2264 KB Output is correct
24 Correct 3 ms 2264 KB Output is correct
25 Correct 9 ms 2408 KB Output is correct
26 Correct 9 ms 2416 KB Output is correct
27 Correct 6 ms 2408 KB Output is correct
28 Correct 9 ms 2412 KB Output is correct
29 Correct 6 ms 2416 KB Output is correct
30 Correct 0 ms 2264 KB Output is correct
31 Correct 9 ms 2400 KB Output is correct
32 Correct 6 ms 2264 KB Output is correct
33 Correct 3 ms 2420 KB Output is correct
34 Correct 3 ms 2416 KB Output is correct
35 Correct 6 ms 2416 KB Output is correct
36 Correct 3 ms 2264 KB Output is correct
37 Correct 46 ms 2416 KB Output is correct
38 Correct 46 ms 2416 KB Output is correct
39 Correct 69 ms 2752 KB Output is correct
40 Correct 113 ms 2468 KB Output is correct
41 Correct 86 ms 2840 KB Output is correct
42 Correct 99 ms 2456 KB Output is correct
43 Correct 169 ms 2696 KB Output is correct
44 Correct 176 ms 2704 KB Output is correct
45 Correct 183 ms 2712 KB Output is correct
46 Correct 76 ms 2464 KB Output is correct
47 Correct 106 ms 2600 KB Output is correct
48 Correct 159 ms 2744 KB Output is correct
49 Correct 133 ms 2752 KB Output is correct
50 Correct 119 ms 2600 KB Output is correct
51 Correct 33 ms 2464 KB Output is correct
52 Correct 229 ms 2816 KB Output is correct
53 Correct 179 ms 2624 KB Output is correct
54 Correct 266 ms 2704 KB Output is correct
55 Correct 496 ms 3136 KB Output is correct
56 Correct 229 ms 2704 KB Output is correct
57 Correct 569 ms 3184 KB Output is correct
58 Correct 296 ms 2744 KB Output is correct
59 Correct 376 ms 2864 KB Output is correct
60 Correct 99 ms 2744 KB Output is correct
61 Correct 419 ms 2936 KB Output is correct
62 Correct 439 ms 3016 KB Output is correct
63 Correct 443 ms 3080 KB Output is correct
64 Correct 423 ms 3064 KB Output is correct
65 Correct 106 ms 2640 KB Output is correct
66 Correct 106 ms 2680 KB Output is correct

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2264 KB Output is correct
2 Correct 0 ms 2264 KB Output is correct
3 Correct 0 ms 2264 KB Output is correct
4 Correct 0 ms 2264 KB Output is correct
5 Correct 0 ms 2264 KB Output is correct
6 Correct 0 ms 2264 KB Output is correct
7 Correct 0 ms 2264 KB Output is correct
8 Correct 0 ms 2264 KB Output is correct
9 Correct 0 ms 2264 KB Output is correct
10 Correct 0 ms 2264 KB Output is correct
11 Correct 0 ms 2264 KB Output is correct
12 Correct 0 ms 2264 KB Output is correct
13 Correct 0 ms 2264 KB Output is correct
14 Correct 0 ms 2264 KB Output is correct
15 Correct 0 ms 2264 KB Output is correct
16 Correct 0 ms 2264 KB Output is correct
17 Correct 0 ms 2264 KB Output is correct
18 Correct 0 ms 2264 KB Output is correct
19 Correct 0 ms 2264 KB Output is correct
20 Correct 0 ms 2264 KB Output is correct
21 Correct 0 ms 2264 KB Output is correct
22 Correct 3 ms 2264 KB Output is correct
23 Correct 0 ms 2264 KB Output is correct
24 Correct 3 ms 2264 KB Output is correct
25 Correct 9 ms 2408 KB Output is correct
26 Correct 9 ms 2416 KB Output is correct
27 Correct 6 ms 2408 KB Output is correct
28 Correct 9 ms 2412 KB Output is correct
29 Correct 6 ms 2416 KB Output is correct
30 Correct 0 ms 2264 KB Output is correct
31 Correct 9 ms 2400 KB Output is correct
32 Correct 6 ms 2264 KB Output is correct
33 Correct 3 ms 2420 KB Output is correct
34 Correct 3 ms 2416 KB Output is correct
35 Correct 6 ms 2416 KB Output is correct
36 Correct 3 ms 2264 KB Output is correct
37 Correct 46 ms 2416 KB Output is correct
38 Correct 46 ms 2416 KB Output is correct
39 Correct 69 ms 2752 KB Output is correct
40 Correct 113 ms 2468 KB Output is correct
41 Correct 86 ms 2840 KB Output is correct
42 Correct 99 ms 2456 KB Output is correct
43 Correct 169 ms 2696 KB Output is correct
44 Correct 176 ms 2704 KB Output is correct
45 Correct 183 ms 2712 KB Output is correct
46 Correct 76 ms 2464 KB Output is correct
47 Correct 106 ms 2600 KB Output is correct
48 Correct 159 ms 2744 KB Output is correct
49 Correct 133 ms 2752 KB Output is correct
50 Correct 119 ms 2600 KB Output is correct
51 Correct 33 ms 2464 KB Output is correct
52 Correct 229 ms 2816 KB Output is correct
53 Correct 179 ms 2624 KB Output is correct
54 Correct 266 ms 2704 KB Output is correct
55 Correct 496 ms 3136 KB Output is correct
56 Correct 229 ms 2704 KB Output is correct
57 Correct 569 ms 3184 KB Output is correct
58 Correct 296 ms 2744 KB Output is correct
59 Correct 376 ms 2864 KB Output is correct
60 Correct 99 ms 2744 KB Output is correct
61 Correct 419 ms 2936 KB Output is correct
62 Correct 439 ms 3016 KB Output is correct
63 Correct 443 ms 3080 KB Output is correct
64 Correct 423 ms 3064 KB Output is correct
65 Correct 106 ms 2640 KB Output is correct
66 Correct 106 ms 2680 KB Output is correct
67 Correct 463 ms 2896 KB Output is correct
68 Correct 199 ms 3232 KB Output is correct
69 Execution timed out 1000 ms 3920 KB Execution timed out
70 Halted 0 ms 0 KB -