Submission #777729

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
777729	2023-07-09 14:26:18	tch1cherin	Council (JOI23_council)	C++17	100 / 100	2675 ms	35140 KiB

council

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#include <bits/stdc++.h>
using namespace std;
const int N = 20, C = sqrt(300000);
int c[2][1 << (N / 2)][1 << (N / 2)], ans[1 << N] = {}, cnt[N] = {};
vector<int> go[2][1 << (N / 2)];
int occ[1 << N] = {}, a[1 << N];
int main() {
  cin.tie(nullptr)->sync_with_stdio(false);
  int n, m;
  cin >> n >> m;
  auto fhalf = [](int x) { return x & ((1 << (N / 2)) - 1); };
  auto shalf = [](int x) { return x >> (N / 2); };
  auto concat = [](int x, int y) { return (x << (N / 2)) + y; };
  for (int i = 0; i < n; i++) {
    int mask = 0;
    for (int j = 0; j < m; j++) {
      int x;
      cin >> x;
      if (x == 1) {
        cnt[j]++;
      }
      mask += x << j;
    }
    occ[mask]++;
    go[0][fhalf(mask)].push_back(shalf(mask));
    go[1][shalf(mask)].push_back(fhalf(mask));
    a[i] = mask;
  }
 
 
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• Subtask 1: 8 / 8
• Subtask 2: 8 / 8
• Subtask 3: 6 / 6
• Subtask 4: 19 / 19
• Subtask 5: 15 / 15
• Subtask 6: 22 / 22
• Subtask 7: 22 / 22