Submission #553687

#	Time	Username	Problem	Language	Result	Execution time	Memory
553687		ala2	Boat (APIO16_boat)	C++14	0 / 100	4 ms	2260 KiB

boat

#include <bits/stdc++.h>
#define int long long
#define F first
#define S second
#define pb push_back
#define B begin()
#define E end()

using namespace std;
int n;
int a[1001000];
int dp[505][505];
int f(int i,int last)
{
    if(dp[i][last]!=-1)
        return dp[i][last];
    if(i==n+1)
        return 1;
    int g=f(i+1,last);
    if(last==0)
    {
        g+=f(i+1,i);
    }
    else if(a[i]>a[last])
        g+=f(i+1,i);
    return dp[i][last]=g;
}
signed main()
{
    memset(dp,-1,sizeof dp);
    cin>>n;
    for(int i=1;i<=n;i++){
        cin>>a[i];
        cin>>a[i];
    }
        cout<<f(1,0)<<endl;

}

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