Submission #788619

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
788619	2023-07-20 12:18:24	WLZ	Popeala (CEOI16_popeala)	C++17	100 / 100	356 ms	255564 KiB

popeala

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#include <bits/stdc++.h>
using namespace std;
const int INF = 0x3f3f3f3f;
int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  int n, t, s;
  cin >> n >> t >> s;
  vector<int> points(t + 1, 0);
  for (int i = 1; i <= t; i++) cin >> points[i], points[i] += points[i - 1];
  vector<string> results(n);
  for (int i = 0; i < n; i++) cin >> results[i], results[i] = "$" + results[i];
  vector< vector<int> > dp(t + 1, vector<int>(s + 1, INF)); dp[0][0] = 0;
  vector< vector< vector<int> > > mn(t + 1, vector< vector<int> >(s + 1, vector<int>(n + 1, INF))); mn[0][0].assign(n + 1, 0);
  vector<int> last(n, -1), order(n);
  iota(order.begin(), order.end(), 0);
  for (int i = 1; i <= t; i++) {
    for (int j = 0; j < n; j++) if (results[j][i] == '0') last[j] = i;
    sort(order.begin(), order.end(), [&](int a, int b) {
      return last[a] < last[b];
    });
    for (int j = 1; j <= s; j++) {
      dp[i][j] = mn[i - 1][j - 1][n] + n * points[i];
      for (int k = n - 1; k >= 0; k--) {
        if (last[order[k]] == -1) continue;
        dp[i][j] = min(dp[i][j], mn[last[order[k]] - 1][j - 1][k] + k * points[i]);
      }
    }
 
 
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• Subtask 1: 8 / 8
• Subtask 2: 9 / 9
• Subtask 3: 9 / 9
• Subtask 4: 74 / 74