Submission #545480

#	Time	Username	Problem	Language	Result	Execution time	Memory
545480		Sohsoh84	Boat (APIO16_boat)	C++17	9 / 100	2 ms	340 KiB

boat

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef pair<ll, ll> pll;

#define all(x)			(x).begin(),(x).end()
#define X			first
#define Y			second
#define sep			' '
#define endl			'\n'
#define debug(x)		cerr << #x << ": " <<  x << endl;

const ll MAXN = 1e6 + 10;
const ll MOD = 1e9 + 7;

int n, A[MAXN];
ll dp[MAXN];

int main() {
	ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
	cin >> n;
	dp[0] = 1;
	
	ll s = 0;
	for (int i = 1; i <= n; i++) {
		cin >> A[i] >> A[i];
		for (int j = 0; j < i; j++)
			if (A[j] < A[i])
				dp[i] += dp[j];
		dp[i] %= MOD;
		s += dp[i];
	}
	
	cout << s % MOD << endl;
	return 0;
}

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