Submission #937248

#	Time	Username	Problem	Language	Result	Execution time	Memory
937248		Andrey	Chorus (JOI23_chorus)	C++14	40 / 100	532 ms	2528 KiB

chorus

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

int dp[501][501];

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    int n,x,br = 0;
    cin >> n >> x;
    string s;
    cin >> s;
    vector<int> bruh(0);
    for(int i = 0; i < 2*n; i++) {
        if(s[i] == 'A') {
            br++;
        }
        else {
            bruh.push_back(br);
        }
    }
    for(int i = 0; i <= n; i++) {
        dp[0][i] = 0;
    }
    for(int i = 1; i <= n; i++) {
        for(int k = 0; k <= n; k++) {
            dp[i][k] = 1e9;
        }
        int sb = 0;
        for(int j = i-1; j >= 0; j--) {
            sb+=max(0,i-bruh[j]);
            for(int k = 0; k < n; k++) {
                dp[i][k+1] = min(dp[i][k+1],dp[j][k]+sb);
            }
        }
    }
    cout << dp[n][x];
    return 0;
}

• Subtask 1: 16 / 16
• Subtask 2: 24 / 24
• Subtask 3: 0 / 21
• Subtask 4: 0 / 26
• Subtask 5: 0 / 13