제출 #440741

#제출 시각아이디문제언어결과실행 시간메모리
440741MrDebooExam (eJOI20_exam)C++17
0 / 100
21 ms332 KiB
#include <bits/stdc++.h> #define int long long #define mod 1000000007 #define endl '\n' using namespace std; signed main(){ ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0); int n; cin>>n; pair<int,int>pr[n]; for(int i=0;i<n;i++){ cin>>pr[i].first; } for(int i=0;i<n;i++){ cin>>pr[i].second; } int arr[n]; for(int i=0;i<n;i++)arr[i]=0; for(int i=0;i<n;i++){ if(i>0)arr[i]=arr[i-1]; int temp=0; for(int w=i-1;w>=0;w--){ if(pr[w].second==pr[i].first)temp++; if(temp+(w>0?arr[w-1]:0)>arr[i])arr[i]=temp+(w>0?arr[w-1]:0); } if(pr[i].first==pr[i].second)arr[i]++; } cout<<arr[n-1]; }
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