Submission #1020622

#	Time	Username	Problem	Language	Result	Execution time	Memory
1020622		pcc	Boat (APIO16_boat)	C++17	9 / 100	1 ms	604 KiB

boat

#include <bits/stdc++.h>
using namespace std;

#define ll long long
const ll mod = 1e9+7;
const int mxn = 550;
ll dp[mxn];
int N;
int arr[mxn];

int main(){
	ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	cin>>N;
	for(int i = 1;i<=N;i++)cin>>arr[i]>>arr[i];
	dp[0] = 1;
	ll ans = 0;
	for(int i = 1;i<=N;i++){
		for(int j = i-1;j>=0;j--){
			if(arr[j]<arr[i])dp[i] += dp[j];
		}
		dp[i] %= mod;
		ans += dp[i];
	}
	cout<<(ans%=mod)<<'\n';
	return 0;
}

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