oj.uz

Submission #386230

# Submission time Handle Problem Language Result Execution time Memory
386230 2021-04-06T07:27:38 Z patrikpavic2 Bootfall (IZhO17_bootfall) C++17
100 / 100
 264 ms 35220 KB 
#include <cstdio>
#include <cstdlib>
#include <bitset>
#include <vector>
#include <algorithm>

#define PB push_back

using namespace std;

const int N = 505;
const int OFF = N * N;

bitset < 2 * OFF > dp[N];
bitset < 2 * OFF > pres; 

int n, sz = 1, A[N], mogu = 0;

void solve(int l, int r){
	if(l > r) return;
	if(l == r){
		pres = pres & dp[sz - 1];
		if(!l){
			dp[sz] = (dp[sz - 1] << A[0]) | (dp[sz - 1] >> A[0]);
			mogu = dp[sz][OFF];
		}
		return;
	}
	int mid = (l + r) / 2;
	if(mid + 1 <= r){
		for(int i = l;i <= mid;i++){
			dp[sz] = (dp[sz - 1] << A[i]) | (dp[sz - 1] >> A[i]);
			sz++;
		}
		solve(mid + 1, r);
		sz -= mid - l + 1;
	}
	if(l <= mid){
		for(int i = mid + 1;i <= r;i++){
			dp[sz] = (dp[sz - 1] << A[i]) | (dp[sz - 1] >> A[i]);
			sz++;
		}
		solve(l, mid);
		sz -= r - mid;		
	}
}

vector < int > sol;

int main(){
	dp[0][OFF] = 1;
	for(int i = 0;i < 2 * OFF;i++)
		pres[i] = 1;
	scanf("%d", &n);
	for(int i = 0;i < n;i++){
		scanf("%d", A + i);
	}
	solve(0, n - 1);
	if(!mogu){
		printf("0\n");
		return 0;
	}
	for(int i = 0;i < 2 * OFF;i++)
		if(pres[i]) sol.PB(abs(i - OFF));
	sort(sol.begin(), sol.end());
	sol.erase(unique(sol.begin(), sol.end()), sol.end());
	printf("%d\n", (int)sol.size());
	for(int x : sol)
		printf("%d ", x);
	printf("\n");
	return 0;
}

Compilation message

bootfall.cpp: In function 'int main()':
bootfall.cpp:54:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   54 |  scanf("%d", &n);
      |  ~~~~~^~~~~~~~~~
bootfall.cpp:56:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   56 |   scanf("%d", A + i);
      |   ~~~~~^~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1132 KB Output is correct
2 Correct 4 ms 1516 KB Output is correct
3 Correct 3 ms 1132 KB Output is correct
4 Correct 3 ms 1132 KB Output is correct
5 Correct 5 ms 2028 KB Output is correct
6 Correct 4 ms 1664 KB Output is correct
7 Correct 4 ms 1536 KB Output is correct
8 Correct 5 ms 2028 KB Output is correct
9 Correct 5 ms 1900 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1132 KB Output is correct
2 Correct 4 ms 1516 KB Output is correct
3 Correct 3 ms 1132 KB Output is correct
4 Correct 3 ms 1132 KB Output is correct
5 Correct 5 ms 2028 KB Output is correct
6 Correct 4 ms 1664 KB Output is correct
7 Correct 4 ms 1536 KB Output is correct
8 Correct 5 ms 2028 KB Output is correct
9 Correct 5 ms 1900 KB Output is correct
10 Correct 10 ms 3308 KB Output is correct
11 Correct 11 ms 3308 KB Output is correct
12 Correct 10 ms 3308 KB Output is correct
13 Correct 9 ms 3180 KB Output is correct
14 Correct 10 ms 3328 KB Output is correct
15 Correct 10 ms 3180 KB Output is correct
16 Correct 10 ms 3308 KB Output is correct
17 Correct 9 ms 2668 KB Output is correct
18 Correct 9 ms 3052 KB Output is correct
19 Correct 9 ms 3180 KB Output is correct
20 Correct 10 ms 3308 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1132 KB Output is correct
2 Correct 4 ms 1516 KB Output is correct
3 Correct 3 ms 1132 KB Output is correct
4 Correct 3 ms 1132 KB Output is correct
5 Correct 5 ms 2028 KB Output is correct
6 Correct 4 ms 1664 KB Output is correct
7 Correct 4 ms 1536 KB Output is correct
8 Correct 5 ms 2028 KB Output is correct
9 Correct 5 ms 1900 KB Output is correct
10 Correct 10 ms 3308 KB Output is correct
11 Correct 11 ms 3308 KB Output is correct
12 Correct 10 ms 3308 KB Output is correct
13 Correct 9 ms 3180 KB Output is correct
14 Correct 10 ms 3328 KB Output is correct
15 Correct 10 ms 3180 KB Output is correct
16 Correct 10 ms 3308 KB Output is correct
17 Correct 9 ms 2668 KB Output is correct
18 Correct 9 ms 3052 KB Output is correct
19 Correct 9 ms 3180 KB Output is correct
20 Correct 10 ms 3308 KB Output is correct
21 Correct 22 ms 5740 KB Output is correct
22 Correct 26 ms 6508 KB Output is correct
23 Correct 17 ms 4844 KB Output is correct
24 Correct 33 ms 7868 KB Output is correct
25 Correct 36 ms 7788 KB Output is correct
26 Correct 36 ms 8172 KB Output is correct
27 Correct 36 ms 8172 KB Output is correct
28 Correct 36 ms 8172 KB Output is correct
29 Correct 35 ms 8172 KB Output is correct
30 Correct 45 ms 8172 KB Output is correct
31 Correct 36 ms 8172 KB Output is correct
32 Correct 36 ms 8172 KB Output is correct
33 Correct 45 ms 8172 KB Output is correct
34 Correct 35 ms 8172 KB Output is correct
35 Correct 35 ms 8176 KB Output is correct
36 Correct 39 ms 8116 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1132 KB Output is correct
2 Correct 4 ms 1516 KB Output is correct
3 Correct 3 ms 1132 KB Output is correct
4 Correct 3 ms 1132 KB Output is correct
5 Correct 5 ms 2028 KB Output is correct
6 Correct 4 ms 1664 KB Output is correct
7 Correct 4 ms 1536 KB Output is correct
8 Correct 5 ms 2028 KB Output is correct
9 Correct 5 ms 1900 KB Output is correct
10 Correct 10 ms 3308 KB Output is correct
11 Correct 11 ms 3308 KB Output is correct
12 Correct 10 ms 3308 KB Output is correct
13 Correct 9 ms 3180 KB Output is correct
14 Correct 10 ms 3328 KB Output is correct
15 Correct 10 ms 3180 KB Output is correct
16 Correct 10 ms 3308 KB Output is correct
17 Correct 9 ms 2668 KB Output is correct
18 Correct 9 ms 3052 KB Output is correct
19 Correct 9 ms 3180 KB Output is correct
20 Correct 10 ms 3308 KB Output is correct
21 Correct 22 ms 5740 KB Output is correct
22 Correct 26 ms 6508 KB Output is correct
23 Correct 17 ms 4844 KB Output is correct
24 Correct 33 ms 7868 KB Output is correct
25 Correct 36 ms 7788 KB Output is correct
26 Correct 36 ms 8172 KB Output is correct
27 Correct 36 ms 8172 KB Output is correct
28 Correct 36 ms 8172 KB Output is correct
29 Correct 35 ms 8172 KB Output is correct
30 Correct 45 ms 8172 KB Output is correct
31 Correct 36 ms 8172 KB Output is correct
32 Correct 36 ms 8172 KB Output is correct
33 Correct 45 ms 8172 KB Output is correct
34 Correct 35 ms 8172 KB Output is correct
35 Correct 35 ms 8176 KB Output is correct
36 Correct 39 ms 8116 KB Output is correct
37 Correct 89 ms 14796 KB Output is correct
38 Correct 80 ms 14828 KB Output is correct
39 Correct 99 ms 17516 KB Output is correct
40 Correct 117 ms 19436 KB Output is correct
41 Correct 109 ms 19096 KB Output is correct
42 Correct 99 ms 18028 KB Output is correct
43 Correct 104 ms 17768 KB Output is correct
44 Correct 105 ms 18044 KB Output is correct
45 Correct 109 ms 18152 KB Output is correct
46 Correct 107 ms 19052 KB Output is correct
47 Correct 106 ms 18028 KB Output is correct
48 Correct 99 ms 18028 KB Output is correct
49 Correct 97 ms 17772 KB Output is correct
50 Correct 101 ms 18028 KB Output is correct
51 Correct 95 ms 17660 KB Output is correct
52 Correct 116 ms 19560 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1132 KB Output is correct
2 Correct 4 ms 1516 KB Output is correct
3 Correct 3 ms 1132 KB Output is correct
4 Correct 3 ms 1132 KB Output is correct
5 Correct 5 ms 2028 KB Output is correct
6 Correct 4 ms 1664 KB Output is correct
7 Correct 4 ms 1536 KB Output is correct
8 Correct 5 ms 2028 KB Output is correct
9 Correct 5 ms 1900 KB Output is correct
10 Correct 10 ms 3308 KB Output is correct
11 Correct 11 ms 3308 KB Output is correct
12 Correct 10 ms 3308 KB Output is correct
13 Correct 9 ms 3180 KB Output is correct
14 Correct 10 ms 3328 KB Output is correct
15 Correct 10 ms 3180 KB Output is correct
16 Correct 10 ms 3308 KB Output is correct
17 Correct 9 ms 2668 KB Output is correct
18 Correct 9 ms 3052 KB Output is correct
19 Correct 9 ms 3180 KB Output is correct
20 Correct 10 ms 3308 KB Output is correct
21 Correct 22 ms 5740 KB Output is correct
22 Correct 26 ms 6508 KB Output is correct
23 Correct 17 ms 4844 KB Output is correct
24 Correct 33 ms 7868 KB Output is correct
25 Correct 36 ms 7788 KB Output is correct
26 Correct 36 ms 8172 KB Output is correct
27 Correct 36 ms 8172 KB Output is correct
28 Correct 36 ms 8172 KB Output is correct
29 Correct 35 ms 8172 KB Output is correct
30 Correct 45 ms 8172 KB Output is correct
31 Correct 36 ms 8172 KB Output is correct
32 Correct 36 ms 8172 KB Output is correct
33 Correct 45 ms 8172 KB Output is correct
34 Correct 35 ms 8172 KB Output is correct
35 Correct 35 ms 8176 KB Output is correct
36 Correct 39 ms 8116 KB Output is correct
37 Correct 89 ms 14796 KB Output is correct
38 Correct 80 ms 14828 KB Output is correct
39 Correct 99 ms 17516 KB Output is correct
40 Correct 117 ms 19436 KB Output is correct
41 Correct 109 ms 19096 KB Output is correct
42 Correct 99 ms 18028 KB Output is correct
43 Correct 104 ms 17768 KB Output is correct
44 Correct 105 ms 18044 KB Output is correct
45 Correct 109 ms 18152 KB Output is correct
46 Correct 107 ms 19052 KB Output is correct
47 Correct 106 ms 18028 KB Output is correct
48 Correct 99 ms 18028 KB Output is correct
49 Correct 97 ms 17772 KB Output is correct
50 Correct 101 ms 18028 KB Output is correct
51 Correct 95 ms 17660 KB Output is correct
52 Correct 116 ms 19560 KB Output is correct
53 Correct 124 ms 21356 KB Output is correct
54 Correct 159 ms 24680 KB Output is correct
55 Correct 164 ms 24936 KB Output is correct
56 Correct 131 ms 21792 KB Output is correct
57 Correct 156 ms 25060 KB Output is correct
58 Correct 153 ms 24680 KB Output is correct
59 Correct 153 ms 24828 KB Output is correct
60 Correct 140 ms 24044 KB Output is correct
61 Correct 155 ms 24804 KB Output is correct
62 Correct 149 ms 23012 KB Output is correct
63 Correct 156 ms 23012 KB Output is correct
64 Correct 151 ms 22604 KB Output is correct
65 Correct 128 ms 21944 KB Output is correct
66 Correct 135 ms 21740 KB Output is correct

Subtask #6
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1132 KB Output is correct
2 Correct 4 ms 1516 KB Output is correct
3 Correct 3 ms 1132 KB Output is correct
4 Correct 3 ms 1132 KB Output is correct
5 Correct 5 ms 2028 KB Output is correct
6 Correct 4 ms 1664 KB Output is correct
7 Correct 4 ms 1536 KB Output is correct
8 Correct 5 ms 2028 KB Output is correct
9 Correct 5 ms 1900 KB Output is correct
10 Correct 10 ms 3308 KB Output is correct
11 Correct 11 ms 3308 KB Output is correct
12 Correct 10 ms 3308 KB Output is correct
13 Correct 9 ms 3180 KB Output is correct
14 Correct 10 ms 3328 KB Output is correct
15 Correct 10 ms 3180 KB Output is correct
16 Correct 10 ms 3308 KB Output is correct
17 Correct 9 ms 2668 KB Output is correct
18 Correct 9 ms 3052 KB Output is correct
19 Correct 9 ms 3180 KB Output is correct
20 Correct 10 ms 3308 KB Output is correct
21 Correct 22 ms 5740 KB Output is correct
22 Correct 26 ms 6508 KB Output is correct
23 Correct 17 ms 4844 KB Output is correct
24 Correct 33 ms 7868 KB Output is correct
25 Correct 36 ms 7788 KB Output is correct
26 Correct 36 ms 8172 KB Output is correct
27 Correct 36 ms 8172 KB Output is correct
28 Correct 36 ms 8172 KB Output is correct
29 Correct 35 ms 8172 KB Output is correct
30 Correct 45 ms 8172 KB Output is correct
31 Correct 36 ms 8172 KB Output is correct
32 Correct 36 ms 8172 KB Output is correct
33 Correct 45 ms 8172 KB Output is correct
34 Correct 35 ms 8172 KB Output is correct
35 Correct 35 ms 8176 KB Output is correct
36 Correct 39 ms 8116 KB Output is correct
37 Correct 89 ms 14796 KB Output is correct
38 Correct 80 ms 14828 KB Output is correct
39 Correct 99 ms 17516 KB Output is correct
40 Correct 117 ms 19436 KB Output is correct
41 Correct 109 ms 19096 KB Output is correct
42 Correct 99 ms 18028 KB Output is correct
43 Correct 104 ms 17768 KB Output is correct
44 Correct 105 ms 18044 KB Output is correct
45 Correct 109 ms 18152 KB Output is correct
46 Correct 107 ms 19052 KB Output is correct
47 Correct 106 ms 18028 KB Output is correct
48 Correct 99 ms 18028 KB Output is correct
49 Correct 97 ms 17772 KB Output is correct
50 Correct 101 ms 18028 KB Output is correct
51 Correct 95 ms 17660 KB Output is correct
52 Correct 116 ms 19560 KB Output is correct
53 Correct 124 ms 21356 KB Output is correct
54 Correct 159 ms 24680 KB Output is correct
55 Correct 164 ms 24936 KB Output is correct
56 Correct 131 ms 21792 KB Output is correct
57 Correct 156 ms 25060 KB Output is correct
58 Correct 153 ms 24680 KB Output is correct
59 Correct 153 ms 24828 KB Output is correct
60 Correct 140 ms 24044 KB Output is correct
61 Correct 155 ms 24804 KB Output is correct
62 Correct 149 ms 23012 KB Output is correct
63 Correct 156 ms 23012 KB Output is correct
64 Correct 151 ms 22604 KB Output is correct
65 Correct 128 ms 21944 KB Output is correct
66 Correct 135 ms 21740 KB Output is correct
67 Correct 179 ms 27880 KB Output is correct
68 Correct 215 ms 33388 KB Output is correct
69 Correct 240 ms 35040 KB Output is correct
70 Correct 225 ms 34456 KB Output is correct
71 Correct 227 ms 34456 KB Output is correct
72 Correct 209 ms 33452 KB Output is correct
73 Correct 213 ms 33516 KB Output is correct
74 Correct 264 ms 35040 KB Output is correct
75 Correct 234 ms 34784 KB Output is correct
76 Correct 242 ms 35092 KB Output is correct
77 Correct 249 ms 35220 KB Output is correct