Submission #781470

#	Time	Username	Problem	Language	Result	Execution time	Memory
781470		christinelynn	Strange Device (APIO19_strange_device)	C++17	10 / 100	5089 ms	524288 KiB

strange_device

#include<bits/stdc++.h>
#define int long long
#define pii pair<int, int>
using namespace std;
signed main() {
  ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
  int n, a, b; cin >> n >> a >> b;
  priority_queue<pii, vector<pii>, greater<pii>> pq;
  set<pair<int, int>> ans;
  while(n--) {
    int l, r; cin >> l >> r;
    pq.push({l, r});
  }
  while(!pq.empty()) {
    int i=pq.top().first, j=pq.top().second;
    pq.pop();
    while(i<=j) {
      while(!pq.empty() && pq.top().first==i) j=max(j, pq.top().second);
      ans.insert({(i+i/b)%a, i%b});
      i++;
    }
  }
  cout << ans.size() << '\n';
  return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 0 / 5
• Subtask 3: 0 / 5
• Subtask 4: 0 / 5
• Subtask 5: 0 / 5
• Subtask 6: 0 / 20
• Subtask 7: 0 / 20
• Subtask 8: 0 / 30