Submission #833540

#	Time	Username	Problem	Language	Result	Execution time	Memory
833540		vjudge1	Exam (eJOI20_exam)	C++17	13 / 100	160 ms	165356 KiB

exam

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

const int MX = 5005;

int N;
int H[MX], T[MX], dp[MX][MX], mx[MX][MX];

int main() {
      cin.tie(0); ios_base::sync_with_stdio(0);

      cin >> N;
      for(int i = 1; i <= N; i++) cin >> H[i];
      for(int i = 1; i <= N; i++) cin >> T[i];

      for(int i = N; i >= 1; i--) {
            for(int j = i; j <= N; j++) {
                  dp[i][j] = max(dp[i][j], mx[i + 1][j] + (T[i] == H[j]));
            }
            for(int j = N; j >= 1; j--) {
                  mx[i][j] = max(dp[i][j], mx[i][j + 1]);
            }
      }

      cout << mx[1][1] << '\n';
      
}

• Subtask 1: 0 / 14
• Subtask 2: 0 / 12
• Subtask 3: 13 / 13
• Subtask 4: 0 / 23
• Subtask 5: 0 / 16
• Subtask 6: 0 / 22