제출 #403417

#제출 시각아이디문제언어결과실행 시간메모리
403417CursedCodeBoat (APIO16_boat)C++14
9 / 100
2 ms312 KiB
#include<bits/stdc++.h>

using namespace std;
long long a[1000],b[1000];
long long dp[1000] = {0};
long long boat(int n){
	dp[1] = 1;
	a[n + 1] = 1000000000;
	for(int i = 2;i <= n + 1;i++){
		for(int j = i - 1;j >= 1;j--){
			if(a[j] < a[i]) dp[i] += dp[j];
		}
		dp[i] += 1;
		dp[i] %= 1000000007;
	}
	return dp[n + 1] - 1;
}
int main(){
	int n;
	cin >> n;
	for(int i = 1;i <= n;i++){
		cin >> a[i] >> b[i];
	}
	long long k = boat(n);
	cout << k;
}
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