Submission #908743

#	Time	Username	Problem	Language	Result	Execution time	Memory
908743		vjudge1	Popeala (CEOI16_popeala)	C++17	100 / 100	216 ms	11856 KiB

popeala

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
const int T = 2e4 + 7;
const int N = 50 + 7;
const int INF = 2e9;
int n, t, S;
int points[T], pref[T];
int dp[N][T], best[T], last[T][N];
string s[N];

int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    cin >> n >> t >> S;
    for (int i = 1; i <= t; ++i) cin >> points[i];
    for (int i = 1; i <= t; ++i) pref[i] = pref[i - 1] + points[i];
    for (int i = 1; i <= n; ++i) cin >> s[i];
    for (int i = 1; i <= n; ++i) s[i] = "#" + s[i];
    for (int i = 1; i <= n; i++) {
        for (int j = 1; j <= t; ++j) {
            if (s[i][j] == '0') {
                last[j][i] = j; 
            } else {
                last[j][i] = last[j - 1][i];
            }
        }
    }
    for (int i = 1; i <= t; ++i) {
        last[i][0] = i;
        sort(last[i], last[i] + n + 1);
    }
    for (int g = 0; g <= S; ++g) for (int i = 0; i <= t; ++i) dp[g][i] = INF;
    dp[0][0] = 0;
    for (int i = 1; i <= S; ++i) {
        for (int j = 0; j <= n; ++j) best[j] = INF;
        for (int j = 1; j <= t; ++j) {
            for (int cnt = 0; cnt <= n; ++cnt) {
                for (int it = last[j - 1][cnt]; it < last[j][cnt]; ++it) 
                    best[cnt] = min(best[cnt], dp[i - 1][it] - cnt * pref[it]);
                dp[i][j] = min(dp[i][j], best[cnt] + cnt * pref[j]);
            }
        }
    }
    for (int i = 1; i <= S; ++i) cout << dp[i][t] << "\n";
    return 0;
}

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