Submission #1167678

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1167678	2025-03-16 11:30:12	Tyx2019	Circle Passing (EGOI24_circlepassing)	C++20	100 / 100	171 ms	12608 KiB

Main

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#include <bits/stdc++.h>
#define int long long 
#define debug(x) if(0) cout << #x << " is " << x << endl;
using namespace std;
int N, M, Q, K;
int dist(int x, int y){
  return min((y-x+K)%K, (x-y+K)%K);
}
int calc(int x, int y, int z){
  return dist(x, z) + dist((z+N)%K, y) + 1;
}
main(){
  cin >> N >> M >> Q;
  K = 2 * N;
  int X[M];
  for(int i=0;i<M;i++) cin >> X[i];
  vector<int> guys;
  for(int i=0;i<M;i++){
    guys.push_back(X[i]);
    guys.push_back(X[i] + N);
  }
  sort(guys.begin(), guys.end());
  for(int i=0;i<Q;i++){
    int x, y;
    cin >> x >> y;
    int ans = dist(x, y);
    ans = min({ans, calc(x, y, guys[0]), calc(x, y, guys[2*M-1])});
    auto it = lower_bound(guys.begin(), guys.end(), x);
    if(it != guys.end()) ans = min(ans, calc(x, y, *it));
    if(it != guys.begin()){
 
 
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Compilation message (stderr)

Main.cpp:12:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   12 | main(){
      | ^~~~

• Subtask 1: 14 / 14
• Subtask 2: 20 / 20
• Subtask 3: 22 / 22
• Subtask 4: 17 / 17
• Subtask 5: 27 / 27