oj.uz

Submission #335547

# Submission time Handle Problem Language Result Execution time Memory
335547 2020-12-13T03:57:42 Z luciocf Bootfall (IZhO17_bootfall) C++14
13 / 100
 97 ms 2796 KB 
#include <bits/stdc++.h>

using namespace std;

const int maxn = 510;
const int maxs = 250010;
const int mod = 1e9+7;

int a[maxn];
int dp[maxs], qtd[maxs];

int main(void)
{
	int n;
	scanf("%d", &n);

	int s = 0;
	for (int i = 1; i <= n; i++)
	{
		scanf("%d", &a[i]);
		s += a[i];
	}

	dp[0] = 1;

	for (int i = 1; i <= n; i++)
		for (int j = maxs-1; j >= a[i]; j--)
			dp[j] += dp[j - a[i]];

	if (s&1 || !dp[s/2])
	{
		printf("0\n");
		return 0;
	}

	for (int i = 1; i <= n; i++)
	{
		for (int j = a[i]; j < maxs; j++)
			dp[j] = (dp[j] - dp[j - a[i]] + mod)%mod;

		for (int j = (s-a[i]+1)/2; j < maxs; j++)
			if (dp[j])
				qtd[2*j-s+a[i]]++;

		for (int j = maxs; j >= a[i]; j--)
			dp[j] = (dp[j] + dp[j - a[i]])%mod;
	}

	int ans = 0;
	for (int i = 1; i < maxs; i++)
		if (qtd[i] == n)
			ans++;

	printf("%d\n", ans);
	for (int i = 1; i < maxs; i++)
		if (qtd[i] == n)
			printf("%d ", i);
	printf("\n");
}

Compilation message

bootfall.cpp: In function 'int main()':
bootfall.cpp:15:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   15 |  scanf("%d", &n);
      |  ~~~~~^~~~~~~~~~
bootfall.cpp:20:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   20 |   scanf("%d", &a[i]);
      |   ~~~~~^~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 1260 KB Output is correct
2 Correct 10 ms 1260 KB Output is correct
3 Correct 2 ms 1260 KB Output is correct
4 Correct 7 ms 1260 KB Output is correct
5 Correct 18 ms 1260 KB Output is correct
6 Correct 13 ms 1260 KB Output is correct
7 Correct 10 ms 1260 KB Output is correct
8 Correct 19 ms 1260 KB Output is correct
9 Correct 15 ms 1260 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 1260 KB Output is correct
2 Correct 10 ms 1260 KB Output is correct
3 Correct 2 ms 1260 KB Output is correct
4 Correct 7 ms 1260 KB Output is correct
5 Correct 18 ms 1260 KB Output is correct
6 Correct 13 ms 1260 KB Output is correct
7 Correct 10 ms 1260 KB Output is correct
8 Correct 19 ms 1260 KB Output is correct
9 Correct 15 ms 1260 KB Output is correct
10 Correct 47 ms 1280 KB Output is correct
11 Correct 47 ms 1260 KB Output is correct
12 Correct 57 ms 1260 KB Output is correct
13 Correct 39 ms 1260 KB Output is correct
14 Correct 41 ms 1280 KB Output is correct
15 Correct 45 ms 1260 KB Output is correct
16 Correct 48 ms 1360 KB Output is correct
17 Correct 28 ms 1260 KB Output is correct
18 Correct 46 ms 1260 KB Output is correct
19 Correct 39 ms 1360 KB Output is correct
20 Correct 45 ms 1260 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 1260 KB Output is correct
2 Correct 10 ms 1260 KB Output is correct
3 Correct 2 ms 1260 KB Output is correct
4 Correct 7 ms 1260 KB Output is correct
5 Correct 18 ms 1260 KB Output is correct
6 Correct 13 ms 1260 KB Output is correct
7 Correct 10 ms 1260 KB Output is correct
8 Correct 19 ms 1260 KB Output is correct
9 Correct 15 ms 1260 KB Output is correct
10 Correct 47 ms 1280 KB Output is correct
11 Correct 47 ms 1260 KB Output is correct
12 Correct 57 ms 1260 KB Output is correct
13 Correct 39 ms 1260 KB Output is correct
14 Correct 41 ms 1280 KB Output is correct
15 Correct 45 ms 1260 KB Output is correct
16 Correct 48 ms 1360 KB Output is correct
17 Correct 28 ms 1260 KB Output is correct
18 Correct 46 ms 1260 KB Output is correct
19 Correct 39 ms 1360 KB Output is correct
20 Correct 45 ms 1260 KB Output is correct
21 Incorrect 97 ms 2796 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #4
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 1260 KB Output is correct
2 Correct 10 ms 1260 KB Output is correct
3 Correct 2 ms 1260 KB Output is correct
4 Correct 7 ms 1260 KB Output is correct
5 Correct 18 ms 1260 KB Output is correct
6 Correct 13 ms 1260 KB Output is correct
7 Correct 10 ms 1260 KB Output is correct
8 Correct 19 ms 1260 KB Output is correct
9 Correct 15 ms 1260 KB Output is correct
10 Correct 47 ms 1280 KB Output is correct
11 Correct 47 ms 1260 KB Output is correct
12 Correct 57 ms 1260 KB Output is correct
13 Correct 39 ms 1260 KB Output is correct
14 Correct 41 ms 1280 KB Output is correct
15 Correct 45 ms 1260 KB Output is correct
16 Correct 48 ms 1360 KB Output is correct
17 Correct 28 ms 1260 KB Output is correct
18 Correct 46 ms 1260 KB Output is correct
19 Correct 39 ms 1360 KB Output is correct
20 Correct 45 ms 1260 KB Output is correct
21 Incorrect 97 ms 2796 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 1260 KB Output is correct
2 Correct 10 ms 1260 KB Output is correct
3 Correct 2 ms 1260 KB Output is correct
4 Correct 7 ms 1260 KB Output is correct
5 Correct 18 ms 1260 KB Output is correct
6 Correct 13 ms 1260 KB Output is correct
7 Correct 10 ms 1260 KB Output is correct
8 Correct 19 ms 1260 KB Output is correct
9 Correct 15 ms 1260 KB Output is correct
10 Correct 47 ms 1280 KB Output is correct
11 Correct 47 ms 1260 KB Output is correct
12 Correct 57 ms 1260 KB Output is correct
13 Correct 39 ms 1260 KB Output is correct
14 Correct 41 ms 1280 KB Output is correct
15 Correct 45 ms 1260 KB Output is correct
16 Correct 48 ms 1360 KB Output is correct
17 Correct 28 ms 1260 KB Output is correct
18 Correct 46 ms 1260 KB Output is correct
19 Correct 39 ms 1360 KB Output is correct
20 Correct 45 ms 1260 KB Output is correct
21 Incorrect 97 ms 2796 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 1260 KB Output is correct
2 Correct 10 ms 1260 KB Output is correct
3 Correct 2 ms 1260 KB Output is correct
4 Correct 7 ms 1260 KB Output is correct
5 Correct 18 ms 1260 KB Output is correct
6 Correct 13 ms 1260 KB Output is correct
7 Correct 10 ms 1260 KB Output is correct
8 Correct 19 ms 1260 KB Output is correct
9 Correct 15 ms 1260 KB Output is correct
10 Correct 47 ms 1280 KB Output is correct
11 Correct 47 ms 1260 KB Output is correct
12 Correct 57 ms 1260 KB Output is correct
13 Correct 39 ms 1260 KB Output is correct
14 Correct 41 ms 1280 KB Output is correct
15 Correct 45 ms 1260 KB Output is correct
16 Correct 48 ms 1360 KB Output is correct
17 Correct 28 ms 1260 KB Output is correct
18 Correct 46 ms 1260 KB Output is correct
19 Correct 39 ms 1360 KB Output is correct
20 Correct 45 ms 1260 KB Output is correct
21 Incorrect 97 ms 2796 KB Output isn't correct
22 Halted 0 ms 0 KB -