Submission #1015185

#	Time	Username	Problem	Language	Result	Execution time	Memory
1015185		vjudge1	Boat (APIO16_boat)	C++17	0 / 100	1 ms	444 KiB

boat

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

#define int long long
int const N=505;
int const mod=1e9+7;

int dp[N];
int arr[N];

signed main(){
	int n;
	cin>>n;
	for (int i = 1; i <=n; ++i)
		cin>>arr[i]>>arr[i];
	dp[0]=1;
	for(int i=1;i<=n;i++){
		dp[i]=dp[i-1];
		for(int j=i-1;j>=0;j--)
			if(arr[j]<arr[i]){
				dp[i]+=dp[j];
				dp[i]%=mod;
				break;
			}
	}
	dp[n]--;
	dp[n]+=mod;
	dp[n]%=mod;
	cout<<dp[n]<<endl;
	return 0;
}

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