Submission #140142

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
140142	2019-08-02T07:41:32 Z	rdd6584	Unifying Values (KRIII5_UV)	C++14	0 / 7	500 ms	760 KB

UV

#include <cstdio>
#include <algorithm>
#include <memory.h>
#include <iostream>
using namespace std;
typedef long long ll;
const int MOD = 1000000007;

ll vec[10000];
int dp[10001];

int main() {
	ios::sync_with_stdio(false);
	cin.tie(0); cout.tie(0);

	int n;
	cin >> n;

	for (int i = 0; i < n; i++) {
		cin >> vec[i];
		if (i) vec[i] += vec[i - 1];
	}

	ll ans = 0;
	for (int i = 0; i < n - 1; i++) {
		if (!vec[i] || vec[n - 1] % vec[i]) continue;
		if (vec[i] > 0 && vec[n - 1] < 0 || vec[i] < 0 && vec[n - 1] > 0) continue;
		memset(dp, 0, sizeof(dp));
		dp[1] = 1;

		for (int j = i + 1; j < n - 1; j++) {
			if (!vec[j] || vec[j] % vec[i]) continue;

			ll t = vec[j] / vec[i];
			if (t >= 2 && t <= 10000)
				dp[t] = (dp[t] + dp[t - 1]) % MOD;
		}

		ll t = vec[n - 1] / vec[i];
		if (t >= 2 && t <= 10000)
			ans = (ans + dp[t - 1]) % MOD;
	}

	if (vec[n - 1] == 0) {
		ll sum = 1;
		for (int i = 0; i < n - 1; i++)
			if (vec[i] == 0)
				sum = (sum << 1) % MOD;

		sum += MOD - 1;
		ans = (ans + sum) % MOD;
	}

	printf("%lld", ans % MOD);
}

Compilation message

UV.cpp: In function 'int main()':
UV.cpp:27:18: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   if (vec[i] > 0 && vec[n - 1] < 0 || vec[i] < 0 && vec[n - 1] > 0) continue;
       ~~~~~~~~~~~^~~~~~~~~~~~~~~~~

Subtask #1

0 / 2.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	380 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	6 ms	504 KB	Output is correct
5	Correct	6 ms	508 KB	Output is correct
6	Correct	3 ms	376 KB	Output is correct
7	Correct	7 ms	504 KB	Output is correct
8	Correct	2 ms	504 KB	Output is correct
9	Correct	5 ms	504 KB	Output is correct
10	Correct	32 ms	504 KB	Output is correct
11	Correct	25 ms	504 KB	Output is correct
12	Correct	44 ms	504 KB	Output is correct
13	Correct	10 ms	504 KB	Output is correct
14	Correct	8 ms	504 KB	Output is correct
15	Correct	5 ms	532 KB	Output is correct
16	Correct	9 ms	504 KB	Output is correct
17	Correct	7 ms	504 KB	Output is correct
18	Correct	45 ms	504 KB	Output is correct
19	Execution timed out	655 ms	520 KB	Time limit exceeded
20	Halted	0 ms	0 KB	-

Subtask #2

0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	11 ms	504 KB	Output is correct
2	Correct	6 ms	504 KB	Output is correct
3	Correct	4 ms	504 KB	Output is correct
4	Correct	52 ms	504 KB	Output is correct
5	Correct	86 ms	504 KB	Output is correct
6	Correct	49 ms	508 KB	Output is correct
7	Correct	19 ms	508 KB	Output is correct
8	Correct	6 ms	504 KB	Output is correct
9	Correct	17 ms	504 KB	Output is correct
10	Correct	3 ms	376 KB	Output is correct
11	Correct	3 ms	504 KB	Output is correct
12	Correct	3 ms	504 KB	Output is correct
13	Correct	4 ms	504 KB	Output is correct
14	Correct	5 ms	504 KB	Output is correct
15	Correct	5 ms	504 KB	Output is correct
16	Correct	5 ms	636 KB	Output is correct
17	Correct	7 ms	632 KB	Output is correct
18	Correct	8 ms	632 KB	Output is correct
19	Correct	3 ms	504 KB	Output is correct
20	Execution timed out	647 ms	760 KB	Time limit exceeded
21	Halted	0 ms	0 KB	-