oj.uz

Submission #697027

# Submission time Handle Problem Language Result Execution time Memory
697027 2023-02-08T00:10:52 Z allllekssssa Bootfall (IZhO17_bootfall) C++14
100 / 100
 535 ms 10348 KB 
#include<bits/stdc++.h>
 
using namespace std;
 
const int maxN = 500 + 5;
const int bsSize = (maxN * maxN + 10) / 2;
int n;
int a[maxN];
int cnt[maxN];
bitset<bsSize> dp[2][maxN], pre;
 
int main() {
 
	cin >> n;
    
	int sum = 0;
    int gc = 0;
	for (int i = 1; i<=n; i++) {
	    cin >> a[i];
		gc = __gcd(a[i], gc);
	}
 
	for (int i = 1; i<=n; i++) {
		a[i]/=gc;
		if ((a[i] & 1) == 0) {
			printf("0\n");
			return 0;
		}
		if (cnt[a[i]] == 0) cnt[a[i]] = i;
		sum+=a[i];
	}
 
	if (sum & 1) {
    	printf("0\n");
    	return 0;    	
    }
    
 
	for (int i = 1; i <= n + 1; i++) {
		dp[0][i].set(0);
	}
 
	for (int i = 1; i<=n; i++) {
		bool updated = false;
		for (int j = 1; j <= n + 1; j++) {
			if (j<= n && cnt[a[j]] != j) continue;
			
			if (i == j) {
				dp[i&1][j] = dp[(i&1) ^ 1][j];
			} else {
					if (updated) {
						dp[i&1][j] = pre;
					} else {
					dp[i&1][j] = dp[(i&1) ^ 1][j] | (dp[(i&1) ^ 1][j] << a[i]);
					if (i < j && !updated) {
			   			pre = dp[i&1][j];
			   			updated = true;
			   	    }
			   	}
			 }
		}
	}
 
 
	if (dp[n&1][n + 1][sum/2] == 0) {
		printf("0\n");
		return 0;
	}
 
    vector<int> ans;
 
	for (int i = 1; i <= sum; i+=2) {
		bool ok = true;
         
        for (int j = 1; j<= n; j++) {
        	if (cnt[a[j]] != j) continue;
        	int totSum = sum  - a[j] + i;
        	if (totSum % 2 == 1) ok = false;
        	int val = sum - totSum/2 - a[j];
            if (val  < 0) ok = false;
        	if (ok && dp[n&1][j][val] == 0) ok = false;
        }
 
		if (ok) ans.push_back(i);
	}
 
	cout << ans.size() << endl;
 
	for (int i:ans) {
		cout << i * gc << " ";
	}
 
	cout << endl;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 468 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 724 KB Output is correct
6 Correct 1 ms 596 KB Output is correct
7 Correct 0 ms 468 KB Output is correct
8 Correct 1 ms 724 KB Output is correct
9 Correct 0 ms 340 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 468 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 724 KB Output is correct
6 Correct 1 ms 596 KB Output is correct
7 Correct 0 ms 468 KB Output is correct
8 Correct 1 ms 724 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 1 ms 724 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 2 ms 724 KB Output is correct
15 Correct 2 ms 724 KB Output is correct
16 Correct 1 ms 724 KB Output is correct
17 Correct 1 ms 596 KB Output is correct
18 Correct 1 ms 724 KB Output is correct
19 Correct 1 ms 724 KB Output is correct
20 Correct 1 ms 468 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 468 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 724 KB Output is correct
6 Correct 1 ms 596 KB Output is correct
7 Correct 0 ms 468 KB Output is correct
8 Correct 1 ms 724 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 1 ms 724 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 2 ms 724 KB Output is correct
15 Correct 2 ms 724 KB Output is correct
16 Correct 1 ms 724 KB Output is correct
17 Correct 1 ms 596 KB Output is correct
18 Correct 1 ms 724 KB Output is correct
19 Correct 1 ms 724 KB Output is correct
20 Correct 1 ms 468 KB Output is correct
21 Correct 8 ms 1620 KB Output is correct
22 Correct 10 ms 1796 KB Output is correct
23 Correct 5 ms 1364 KB Output is correct
24 Correct 15 ms 2004 KB Output is correct
25 Correct 4 ms 980 KB Output is correct
26 Correct 4 ms 980 KB Output is correct
27 Correct 3 ms 980 KB Output is correct
28 Correct 3 ms 852 KB Output is correct
29 Correct 3 ms 852 KB Output is correct
30 Correct 0 ms 340 KB Output is correct
31 Correct 11 ms 1556 KB Output is correct
32 Correct 15 ms 2076 KB Output is correct
33 Correct 2 ms 724 KB Output is correct
34 Correct 2 ms 724 KB Output is correct
35 Correct 3 ms 852 KB Output is correct
36 Correct 17 ms 2248 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 468 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 724 KB Output is correct
6 Correct 1 ms 596 KB Output is correct
7 Correct 0 ms 468 KB Output is correct
8 Correct 1 ms 724 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 1 ms 724 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 2 ms 724 KB Output is correct
15 Correct 2 ms 724 KB Output is correct
16 Correct 1 ms 724 KB Output is correct
17 Correct 1 ms 596 KB Output is correct
18 Correct 1 ms 724 KB Output is correct
19 Correct 1 ms 724 KB Output is correct
20 Correct 1 ms 468 KB Output is correct
21 Correct 8 ms 1620 KB Output is correct
22 Correct 10 ms 1796 KB Output is correct
23 Correct 5 ms 1364 KB Output is correct
24 Correct 15 ms 2004 KB Output is correct
25 Correct 4 ms 980 KB Output is correct
26 Correct 4 ms 980 KB Output is correct
27 Correct 3 ms 980 KB Output is correct
28 Correct 3 ms 852 KB Output is correct
29 Correct 3 ms 852 KB Output is correct
30 Correct 0 ms 340 KB Output is correct
31 Correct 11 ms 1556 KB Output is correct
32 Correct 15 ms 2076 KB Output is correct
33 Correct 2 ms 724 KB Output is correct
34 Correct 2 ms 724 KB Output is correct
35 Correct 3 ms 852 KB Output is correct
36 Correct 17 ms 2248 KB Output is correct
37 Correct 38 ms 2636 KB Output is correct
38 Correct 40 ms 2820 KB Output is correct
39 Correct 3 ms 1364 KB Output is correct
40 Correct 128 ms 5504 KB Output is correct
41 Correct 4 ms 1492 KB Output is correct
42 Correct 104 ms 4756 KB Output is correct
43 Correct 36 ms 2516 KB Output is correct
44 Correct 33 ms 2436 KB Output is correct
45 Correct 40 ms 2516 KB Output is correct
46 Correct 1 ms 340 KB Output is correct
47 Correct 115 ms 4680 KB Output is correct
48 Correct 14 ms 1876 KB Output is correct
49 Correct 10 ms 1488 KB Output is correct
50 Correct 107 ms 5108 KB Output is correct
51 Correct 1 ms 340 KB Output is correct
52 Correct 22 ms 2132 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 468 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 724 KB Output is correct
6 Correct 1 ms 596 KB Output is correct
7 Correct 0 ms 468 KB Output is correct
8 Correct 1 ms 724 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 1 ms 724 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 2 ms 724 KB Output is correct
15 Correct 2 ms 724 KB Output is correct
16 Correct 1 ms 724 KB Output is correct
17 Correct 1 ms 596 KB Output is correct
18 Correct 1 ms 724 KB Output is correct
19 Correct 1 ms 724 KB Output is correct
20 Correct 1 ms 468 KB Output is correct
21 Correct 8 ms 1620 KB Output is correct
22 Correct 10 ms 1796 KB Output is correct
23 Correct 5 ms 1364 KB Output is correct
24 Correct 15 ms 2004 KB Output is correct
25 Correct 4 ms 980 KB Output is correct
26 Correct 4 ms 980 KB Output is correct
27 Correct 3 ms 980 KB Output is correct
28 Correct 3 ms 852 KB Output is correct
29 Correct 3 ms 852 KB Output is correct
30 Correct 0 ms 340 KB Output is correct
31 Correct 11 ms 1556 KB Output is correct
32 Correct 15 ms 2076 KB Output is correct
33 Correct 2 ms 724 KB Output is correct
34 Correct 2 ms 724 KB Output is correct
35 Correct 3 ms 852 KB Output is correct
36 Correct 17 ms 2248 KB Output is correct
37 Correct 38 ms 2636 KB Output is correct
38 Correct 40 ms 2820 KB Output is correct
39 Correct 3 ms 1364 KB Output is correct
40 Correct 128 ms 5504 KB Output is correct
41 Correct 4 ms 1492 KB Output is correct
42 Correct 104 ms 4756 KB Output is correct
43 Correct 36 ms 2516 KB Output is correct
44 Correct 33 ms 2436 KB Output is correct
45 Correct 40 ms 2516 KB Output is correct
46 Correct 1 ms 340 KB Output is correct
47 Correct 115 ms 4680 KB Output is correct
48 Correct 14 ms 1876 KB Output is correct
49 Correct 10 ms 1488 KB Output is correct
50 Correct 107 ms 5108 KB Output is correct
51 Correct 1 ms 340 KB Output is correct
52 Correct 22 ms 2132 KB Output is correct
53 Correct 122 ms 5252 KB Output is correct
54 Correct 187 ms 5604 KB Output is correct
55 Correct 45 ms 2784 KB Output is correct
56 Correct 171 ms 5784 KB Output is correct
57 Correct 45 ms 2904 KB Output is correct
58 Correct 215 ms 7252 KB Output is correct
59 Correct 140 ms 5168 KB Output is correct
60 Correct 1 ms 340 KB Output is correct
61 Correct 146 ms 5184 KB Output is correct
62 Correct 90 ms 3800 KB Output is correct
63 Correct 53 ms 2952 KB Output is correct
64 Correct 52 ms 2944 KB Output is correct
65 Correct 13 ms 1912 KB Output is correct
66 Correct 47 ms 2676 KB Output is correct

Subtask #6
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 468 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 724 KB Output is correct
6 Correct 1 ms 596 KB Output is correct
7 Correct 0 ms 468 KB Output is correct
8 Correct 1 ms 724 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 1 ms 724 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 2 ms 724 KB Output is correct
15 Correct 2 ms 724 KB Output is correct
16 Correct 1 ms 724 KB Output is correct
17 Correct 1 ms 596 KB Output is correct
18 Correct 1 ms 724 KB Output is correct
19 Correct 1 ms 724 KB Output is correct
20 Correct 1 ms 468 KB Output is correct
21 Correct 8 ms 1620 KB Output is correct
22 Correct 10 ms 1796 KB Output is correct
23 Correct 5 ms 1364 KB Output is correct
24 Correct 15 ms 2004 KB Output is correct
25 Correct 4 ms 980 KB Output is correct
26 Correct 4 ms 980 KB Output is correct
27 Correct 3 ms 980 KB Output is correct
28 Correct 3 ms 852 KB Output is correct
29 Correct 3 ms 852 KB Output is correct
30 Correct 0 ms 340 KB Output is correct
31 Correct 11 ms 1556 KB Output is correct
32 Correct 15 ms 2076 KB Output is correct
33 Correct 2 ms 724 KB Output is correct
34 Correct 2 ms 724 KB Output is correct
35 Correct 3 ms 852 KB Output is correct
36 Correct 17 ms 2248 KB Output is correct
37 Correct 38 ms 2636 KB Output is correct
38 Correct 40 ms 2820 KB Output is correct
39 Correct 3 ms 1364 KB Output is correct
40 Correct 128 ms 5504 KB Output is correct
41 Correct 4 ms 1492 KB Output is correct
42 Correct 104 ms 4756 KB Output is correct
43 Correct 36 ms 2516 KB Output is correct
44 Correct 33 ms 2436 KB Output is correct
45 Correct 40 ms 2516 KB Output is correct
46 Correct 1 ms 340 KB Output is correct
47 Correct 115 ms 4680 KB Output is correct
48 Correct 14 ms 1876 KB Output is correct
49 Correct 10 ms 1488 KB Output is correct
50 Correct 107 ms 5108 KB Output is correct
51 Correct 1 ms 340 KB Output is correct
52 Correct 22 ms 2132 KB Output is correct
53 Correct 122 ms 5252 KB Output is correct
54 Correct 187 ms 5604 KB Output is correct
55 Correct 45 ms 2784 KB Output is correct
56 Correct 171 ms 5784 KB Output is correct
57 Correct 45 ms 2904 KB Output is correct
58 Correct 215 ms 7252 KB Output is correct
59 Correct 140 ms 5168 KB Output is correct
60 Correct 1 ms 340 KB Output is correct
61 Correct 146 ms 5184 KB Output is correct
62 Correct 90 ms 3800 KB Output is correct
63 Correct 53 ms 2952 KB Output is correct
64 Correct 52 ms 2944 KB Output is correct
65 Correct 13 ms 1912 KB Output is correct
66 Correct 47 ms 2676 KB Output is correct
67 Correct 251 ms 8748 KB Output is correct
68 Correct 1 ms 340 KB Output is correct
69 Correct 111 ms 4308 KB Output is correct
70 Correct 531 ms 10312 KB Output is correct
71 Correct 535 ms 10348 KB Output is correct
72 Correct 1 ms 344 KB Output is correct
73 Correct 1 ms 340 KB Output is correct
74 Correct 162 ms 5144 KB Output is correct
75 Correct 337 ms 7624 KB Output is correct
76 Correct 73 ms 3948 KB Output is correct
77 Correct 126 ms 4436 KB Output is correct