Submission #718339

#	Time	Username	Problem	Language	Result	Execution time	Memory
718339		irmuun	Boat (APIO16_boat)	C++17	9 / 100	2 ms	312 KiB

boat

#include<bits/stdc++.h>

using namespace std;

#define pb push_back
#define ll long long
#define ff first
#define ss second
#define all(s) s.begin(),s.end()

const ll mod=1e9+7;

int main(){
    ll n;
    cin>>n;
    ll a[n+5],b[n+5];
    ll dp[n+5];
    for(ll i=1;i<=n;i++){
        cin>>a[i]>>b[i];
    }
    dp[1]=1;
    ll ans=1;
    for(ll i=2;i<=n;i++){
        dp[i]=1;
        for(ll j=1;j<i;j++){
            if(a[j]<a[i]){
                dp[i]+=dp[j];
                dp[i]%=mod;
            }
        }
        ans=(ans+dp[i])%mod;
    }
    cout<<ans;
}

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