Submission #609675

#	Time	Username	Problem	Language	Result	Execution time	Memory
609675		Vanilla	Popeala (CEOI16_popeala)	C++17	0 / 100	27 ms	8404 KiB

popeala

#include <bits/stdc++.h>
using namespace std;
typedef long long int64;
const int maxt = 2e4 + 2;
const int maxn = 51;
int dp[maxt][maxn]; // dp[i][j] -> minimum score divinding first i tests in j subtasks
// int prec[maxt][maxt]; // prec[i][j] -> left of the segment containing suffix of j ones considering first i elements
int prec[maxn][maxt]; // prec[i][j] -> pos of last 0 considering first i elements of the j-th ciuvak
int a[maxt];
int sum[maxn];
int col [maxt];
string s[maxn];

int main() {
    int n,t,mk;
    cin >> n >> t >> mk;
    for (int i = 0; i < maxt; i++) for (int j = 0; j < maxn; j++) dp[i][j] = 2e9;
    memset(prec, 0, sizeof(prec));
    for (int i = 1; i <= t; i++){
        cin >> a[i];
        dp[i][1] = 0;
        sum[i] = sum[i-1] + a[i];
    }
    for (int i = 1; i <= n; i++){
        cin >> s[i];
        int prf = 0;
        for (int j = 1; j <= t; j++){
            col[j]+=(s[i][j-1] - '0');
            prf+= (s[i][j-1] - '0');
            dp[j][1]+=(prf == 1) * sum[j];
            if (s[i][j-1] == '1') prec[i][j] = prec[i][j-1];
            else prec[i][j] = j;
        }
    }
    for (int i = 1; i <= t; i++){
        prec[0][i] = i;
        // sort(prec[i], prec[i] + n + 1);
    }
    for (int k = 2; k <= mk; k++){
        for (int i = 1; i <= t; i++){
            for (int c = 0; c <= n; c++){
                int sf = 2e9;
                for (int j = prec[c][i - 1]; j < prec[c][i]; j++){
                    sf = min(sf, dp[j][k - 1] - c * sum[j]);
                }
                dp[i][k] = min(dp[i][k], sf + c * sum[i]);
            }
        }
    }
    // for (int i = 1; i <= mk; i++){
    //     for (int j = 1; j <= t; j++){
    //         cout << dp[j][i] << " ";
    //     }
    //     cout << "\n";
    // }
    for (int i = 1; i <= mk; i++){
        cout << dp[t][i] << "\n";
    }
    
    return 0;
}

• Subtask 1: 0 / 8
• Subtask 2: 0 / 9
• Subtask 3: 0 / 9
• Subtask 4: 0 / 74