제출 #764713

#제출 시각아이디문제언어결과실행 시간메모리
764713vjudge1Exam (eJOI20_exam)C++17
13 / 100
91 ms134300 KiB
#include <bits/stdc++.h>
const int ary=5001;
using namespace std;
int n,a[ary],b[ary],dp[ary][ary],d[ary][ary];
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);cout.tie(0);
    cin>>n;
    for(int i=1;i<=n;i++){
        cin>>a[i];
    }
    for(int i=1;i<=n;i++){
        cin>>b[i];
    }
    for(int i=1;i<=n;i++){
        for(int R=i;R<=n;R++){
            dp[i][R]=d[i-1][R]+(b[i]==a[R]);
            d[i][R]=max(d[i][R-1],dp[i][R]);
        }
    }
    cout<<dp[n][n];
}
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