oj.uz

Submission #166745

# Submission time Handle Problem Language Result Execution time Memory
166745 2019-12-03T15:22:02 Z abil Bootfall (IZhO17_bootfall) C++14
100 / 100
 553 ms 2076 KB 
#include <bits/stdc++.h>

#define fr first
#define sc second
#define pb push_back
#define mk make_pair
#define all(s) s.begin(),s.end()
//#define int long long

using namespace std;

const int N = (1e6 + 12);
const int mod = (1e9 + 7);
const int INF = (0x3f3f3f3f);

int a[N], f[N];
set<int > s;
bitset< N > b;
main()
{
	int n, sum = 0;
	scanf("%d", &n);
	for(int i = 1;i <= n; i++){
		scanf("%d", &a[i]);
	}
	f[0] = 1;
	for(int i = 1;i <= n; i++){
		for(int j = sum + a[i];j >= a[i]; j--){
			f[j] += f[j - a[i]];
			if(f[j] >= mod){
				f[j] -= mod;
			}
		}
		sum += a[i];
	}
	if(!f[sum / 2] || sum & 1){
		cout << 0;
		return 0;
	}
	for(int i = 1;i <= sum; i++){
		b[i] = 1;
	}
	for(int i = 1;i <= n; i++){
		for(int j = a[i];j <= sum; j++){
			f[j] -= f[j - a[i]];
			if(f[j] < 0){
				f[j] += mod;
			}
		}
		for(int j = 1;j <= sum; j++){
			if((sum - a[i] + j) & 1 || !f[(sum - a[i] + j) / 2]){
				b[j] = 0;
			}
		}
		for(int j = sum;j >= a[i]; j--){
			f[j] += f[j - a[i]];
			if(f[j] >= mod){
				f[j] -= mod;
			}
		}
	}
	cout << b.count() << endl;
	for(int i = 1;i <= sum; i++){
		if(b[i]){
			cout << i << " ";
		}
	}
}

Compilation message

bootfall.cpp:19:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main()
      ^
bootfall.cpp: In function 'int main()':
bootfall.cpp:22:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
  ~~~~~^~~~~~~~~~
bootfall.cpp:24:8: 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 2 ms 376 KB Output is correct
2 Correct 2 ms 248 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 248 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 380 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 368 KB Output is correct
15 Correct 3 ms 376 KB Output is correct
16 Correct 1 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 404 KB Output is correct
20 Correct 2 ms 376 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 248 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 380 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 368 KB Output is correct
15 Correct 3 ms 376 KB Output is correct
16 Correct 1 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 404 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 3 ms 376 KB Output is correct
22 Correct 3 ms 376 KB Output is correct
23 Correct 3 ms 376 KB Output is correct
24 Correct 4 ms 376 KB Output is correct
25 Correct 7 ms 376 KB Output is correct
26 Correct 7 ms 420 KB Output is correct
27 Correct 7 ms 376 KB Output is correct
28 Correct 7 ms 376 KB Output is correct
29 Correct 7 ms 376 KB Output is correct
30 Correct 5 ms 376 KB Output is correct
31 Correct 6 ms 376 KB Output is correct
32 Correct 5 ms 376 KB Output is correct
33 Correct 7 ms 376 KB Output is correct
34 Correct 8 ms 380 KB Output is correct
35 Correct 8 ms 376 KB Output is correct
36 Correct 5 ms 376 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 248 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 380 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 368 KB Output is correct
15 Correct 3 ms 376 KB Output is correct
16 Correct 1 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 404 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 3 ms 376 KB Output is correct
22 Correct 3 ms 376 KB Output is correct
23 Correct 3 ms 376 KB Output is correct
24 Correct 4 ms 376 KB Output is correct
25 Correct 7 ms 376 KB Output is correct
26 Correct 7 ms 420 KB Output is correct
27 Correct 7 ms 376 KB Output is correct
28 Correct 7 ms 376 KB Output is correct
29 Correct 7 ms 376 KB Output is correct
30 Correct 5 ms 376 KB Output is correct
31 Correct 6 ms 376 KB Output is correct
32 Correct 5 ms 376 KB Output is correct
33 Correct 7 ms 376 KB Output is correct
34 Correct 8 ms 380 KB Output is correct
35 Correct 8 ms 376 KB Output is correct
36 Correct 5 ms 376 KB Output is correct
37 Correct 20 ms 504 KB Output is correct
38 Correct 24 ms 504 KB Output is correct
39 Correct 82 ms 632 KB Output is correct
40 Correct 66 ms 632 KB Output is correct
41 Correct 105 ms 632 KB Output is correct
42 Correct 100 ms 632 KB Output is correct
43 Correct 63 ms 632 KB Output is correct
44 Correct 65 ms 764 KB Output is correct
45 Correct 66 ms 760 KB Output is correct
46 Correct 43 ms 632 KB Output is correct
47 Correct 53 ms 548 KB Output is correct
48 Correct 96 ms 632 KB Output is correct
49 Correct 79 ms 632 KB Output is correct
50 Correct 54 ms 632 KB Output is correct
51 Correct 7 ms 424 KB Output is correct
52 Correct 89 ms 760 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 248 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 380 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 368 KB Output is correct
15 Correct 3 ms 376 KB Output is correct
16 Correct 1 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 404 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 3 ms 376 KB Output is correct
22 Correct 3 ms 376 KB Output is correct
23 Correct 3 ms 376 KB Output is correct
24 Correct 4 ms 376 KB Output is correct
25 Correct 7 ms 376 KB Output is correct
26 Correct 7 ms 420 KB Output is correct
27 Correct 7 ms 376 KB Output is correct
28 Correct 7 ms 376 KB Output is correct
29 Correct 7 ms 376 KB Output is correct
30 Correct 5 ms 376 KB Output is correct
31 Correct 6 ms 376 KB Output is correct
32 Correct 5 ms 376 KB Output is correct
33 Correct 7 ms 376 KB Output is correct
34 Correct 8 ms 380 KB Output is correct
35 Correct 8 ms 376 KB Output is correct
36 Correct 5 ms 376 KB Output is correct
37 Correct 20 ms 504 KB Output is correct
38 Correct 24 ms 504 KB Output is correct
39 Correct 82 ms 632 KB Output is correct
40 Correct 66 ms 632 KB Output is correct
41 Correct 105 ms 632 KB Output is correct
42 Correct 100 ms 632 KB Output is correct
43 Correct 63 ms 632 KB Output is correct
44 Correct 65 ms 764 KB Output is correct
45 Correct 66 ms 760 KB Output is correct
46 Correct 43 ms 632 KB Output is correct
47 Correct 53 ms 548 KB Output is correct
48 Correct 96 ms 632 KB Output is correct
49 Correct 79 ms 632 KB Output is correct
50 Correct 54 ms 632 KB Output is correct
51 Correct 7 ms 424 KB Output is correct
52 Correct 89 ms 760 KB Output is correct
53 Correct 68 ms 596 KB Output is correct
54 Correct 89 ms 736 KB Output is correct
55 Correct 194 ms 1016 KB Output is correct
56 Correct 78 ms 760 KB Output is correct
57 Correct 189 ms 1116 KB Output is correct
58 Correct 97 ms 764 KB Output is correct
59 Correct 125 ms 964 KB Output is correct
60 Correct 14 ms 632 KB Output is correct
61 Correct 137 ms 1016 KB Output is correct
62 Correct 137 ms 1016 KB Output is correct
63 Correct 152 ms 1172 KB Output is correct
64 Correct 147 ms 1144 KB Output is correct
65 Correct 83 ms 608 KB Output is correct
66 Correct 86 ms 632 KB Output is correct

Subtask #6
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 248 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 380 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 368 KB Output is correct
15 Correct 3 ms 376 KB Output is correct
16 Correct 1 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 404 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 3 ms 376 KB Output is correct
22 Correct 3 ms 376 KB Output is correct
23 Correct 3 ms 376 KB Output is correct
24 Correct 4 ms 376 KB Output is correct
25 Correct 7 ms 376 KB Output is correct
26 Correct 7 ms 420 KB Output is correct
27 Correct 7 ms 376 KB Output is correct
28 Correct 7 ms 376 KB Output is correct
29 Correct 7 ms 376 KB Output is correct
30 Correct 5 ms 376 KB Output is correct
31 Correct 6 ms 376 KB Output is correct
32 Correct 5 ms 376 KB Output is correct
33 Correct 7 ms 376 KB Output is correct
34 Correct 8 ms 380 KB Output is correct
35 Correct 8 ms 376 KB Output is correct
36 Correct 5 ms 376 KB Output is correct
37 Correct 20 ms 504 KB Output is correct
38 Correct 24 ms 504 KB Output is correct
39 Correct 82 ms 632 KB Output is correct
40 Correct 66 ms 632 KB Output is correct
41 Correct 105 ms 632 KB Output is correct
42 Correct 100 ms 632 KB Output is correct
43 Correct 63 ms 632 KB Output is correct
44 Correct 65 ms 764 KB Output is correct
45 Correct 66 ms 760 KB Output is correct
46 Correct 43 ms 632 KB Output is correct
47 Correct 53 ms 548 KB Output is correct
48 Correct 96 ms 632 KB Output is correct
49 Correct 79 ms 632 KB Output is correct
50 Correct 54 ms 632 KB Output is correct
51 Correct 7 ms 424 KB Output is correct
52 Correct 89 ms 760 KB Output is correct
53 Correct 68 ms 596 KB Output is correct
54 Correct 89 ms 736 KB Output is correct
55 Correct 194 ms 1016 KB Output is correct
56 Correct 78 ms 760 KB Output is correct
57 Correct 189 ms 1116 KB Output is correct
58 Correct 97 ms 764 KB Output is correct
59 Correct 125 ms 964 KB Output is correct
60 Correct 14 ms 632 KB Output is correct
61 Correct 137 ms 1016 KB Output is correct
62 Correct 137 ms 1016 KB Output is correct
63 Correct 152 ms 1172 KB Output is correct
64 Correct 147 ms 1144 KB Output is correct
65 Correct 83 ms 608 KB Output is correct
66 Correct 86 ms 632 KB Output is correct
67 Correct 139 ms 832 KB Output is correct
68 Correct 40 ms 760 KB Output is correct
69 Correct 468 ms 2012 KB Output is correct
70 Correct 286 ms 1400 KB Output is correct
71 Correct 276 ms 1164 KB Output is correct
72 Correct 270 ms 888 KB Output is correct
73 Correct 275 ms 924 KB Output is correct
74 Correct 486 ms 2040 KB Output is correct
75 Correct 387 ms 1640 KB Output is correct
76 Correct 553 ms 2076 KB Output is correct
77 Correct 529 ms 2004 KB Output is correct