Submission #15096621

Source Code Expand

#include <bits/stdc++.h>
using namespace std;

using P = pair<long long, long long>;

long long n, h, w;
vector<P> v;

long long solve();

int main() {
  cin >> h >> w >> n;
  v.resize(n);
  for (auto &p : v) {
    cin >> p.second >> p.first;
    --p.first, --p.second;
  }
  for (int i = 0; i < w; ++i) v.emplace_back(i, h);
  n = v.size();
  sort(v.begin(), v.end());
  cout << solve() << endl;
  return 0;
}

long long solve() {
  long long res = 1e10, x = 0;
  for (int i = 0, id = 0; i < w && x < h; ++i) {
    while (id < n && v[id].first == i) res = min(res, v[id++].second);
    while (id < n && v[id].first == i + 1 && x + 1 >= v[id].second)
      if (x + 1 == v[id++].second) ++x;
    ++x;
  }
  return res;
}

Submission Info

Submission Time
Task D - Grid game
User m_tsubasa
Language C++ (GCC 9.2.1)
Score 800
Code Size 752 Byte
Status AC
Exec Time 123 ms
Memory 12088 KiB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 800 / 800
Status
AC × 3
AC × 48
Set Name Test Cases
Sample sample01.txt, sample02.txt, sample03.txt
All sample01.txt, sample02.txt, sample03.txt, in01.txt, in02.txt, in03.txt, in04.txt, in05.txt, in06.txt, in07.txt, in08.txt, in09.txt, in10.txt, in11.txt, in12.txt, in13.txt, in14.txt, in15.txt, in16.txt, in17.txt, in18.txt, in19.txt, in20.txt, in21.txt, in22.txt, in23.txt, in24.txt, in25.txt, in26.txt, in27.txt, in28.txt, in29.txt, in30.txt, in31.txt, in32.txt, in33.txt, in34.txt, in35.txt, in36.txt, in37.txt, in38.txt, in39.txt, in40.txt, in41.txt, in42.txt, sample01.txt, sample02.txt, sample03.txt
Case Name Status Exec Time Memory
in01.txt AC 82 ms 9992 KiB
in02.txt AC 91 ms 12088 KiB
in03.txt AC 72 ms 6456 KiB
in04.txt AC 61 ms 8240 KiB
in05.txt AC 46 ms 9708 KiB
in06.txt AC 49 ms 5176 KiB
in07.txt AC 63 ms 8208 KiB
in08.txt AC 58 ms 6916 KiB
in09.txt AC 43 ms 6356 KiB
in10.txt AC 74 ms 8908 KiB
in11.txt AC 61 ms 8220 KiB
in12.txt AC 48 ms 6840 KiB
in13.txt AC 28 ms 6616 KiB
in14.txt AC 25 ms 8208 KiB
in15.txt AC 15 ms 5096 KiB
in16.txt AC 30 ms 8556 KiB
in17.txt AC 37 ms 9248 KiB
in18.txt AC 39 ms 5688 KiB
in19.txt AC 49 ms 8928 KiB
in20.txt AC 46 ms 8580 KiB
in21.txt AC 23 ms 4344 KiB
in22.txt AC 6 ms 3404 KiB
in23.txt AC 3 ms 3352 KiB
in24.txt AC 2 ms 3348 KiB
in25.txt AC 2 ms 3528 KiB
in26.txt AC 2 ms 3548 KiB
in27.txt AC 4 ms 3408 KiB
in28.txt AC 3 ms 3524 KiB
in29.txt AC 2 ms 3348 KiB
in30.txt AC 2 ms 3576 KiB
in31.txt AC 2 ms 3524 KiB
in32.txt AC 48 ms 5932 KiB
in33.txt AC 54 ms 10652 KiB
in34.txt AC 18 ms 7308 KiB
in35.txt AC 118 ms 9484 KiB
in36.txt AC 113 ms 9472 KiB
in37.txt AC 111 ms 9412 KiB
in38.txt AC 114 ms 9464 KiB
in39.txt AC 120 ms 9328 KiB
in40.txt AC 123 ms 9360 KiB
in41.txt AC 112 ms 9460 KiB
in42.txt AC 110 ms 9364 KiB
sample01.txt AC 10 ms 3408 KiB
sample02.txt AC 2 ms 3472 KiB
sample03.txt AC 8 ms 5164 KiB