Submission #974028

#	Time	Username	Problem	Language	Result	Execution time	Memory
974028		Halym2007	Boat (APIO16_boat)	C++17	9 / 100	1 ms	756 KiB

boat

#include <bits/stdc++.h>
using namespace std;
const int N = 5e2 + 5;

#define ll long long
ll md = 1e9 + 7, a[N], b[N], dp[N];

int main () {
	int n;
	cin >> n;
	for (int i = 1; i <= n; ++i) {
		cin >> a[i] >> b[i];
	}
	for (int i = 1; i <= n; ++i) {
		dp[i] = 1;
		for (int j = i - 1; j > 0; j--) {
			if (a[i] > a[j]) {
				dp[i] += dp[j];
				dp[i] %= md;
			}
		}
	}
	ll sum = 0;
	for (int i = 1; i <= n; ++i) {
		sum += dp[i];
		sum %= md;
	}
	cout << sum << "\n";
}

• Subtask 1: 9 / 9
• Subtask 2: 0 / 22
• Subtask 3: 0 / 27
• Subtask 4: 0 / 42