제출 #781626

#제출 시각아이디문제언어결과실행 시간메모리
781626kebine이상한 기계 (APIO19_strange_device)C++17
0 / 100
5092 ms524288 KiB
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll, ll> pll;

ll n, a, b, ans = 0;
map<pll, bool> mp;

int main(){
  cin >> n >> a >> b;
  while(n--)
  {
    ll l, r;
    cin >> l >> r;
    for (int i = l; i <= r; ++i)
    {
      pll hasil = {(i + (i/b)) % a, i % b};
      if (mp[hasil])
      {
        continue ;
      }
      mp[hasil] = true;
      ans++;
    }
  }

  cout << ans << "\n";
  return 0;
}
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