Submission #1595154

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Source Code Expand

#include <iostream>
#include <vector>
#include <queue>

using namespace std;

int main(){
  int X, K, Q;
  int r[100010];
  cin >> X;
  cin >> K;
  for(int i = 0; i < K; i++)  cin >> r[i];
  cin >> Q;

  int x, y, z;
  int t, a;
  int tim = 0, dir = 1, rin = 0;
  x = 0; y = X; z = 0;
  for(int i = 0; i < Q; i++){
    cin >> t >> a;
    for(int j = tim; j < t; j++){
      if(j == r[rin]){
        dir = 1 - dir;
        rin++;
      }
      if(dir == 1){
        z = max(z-1, -X);
        x = max(x, -z);
      }
      else{
        z = min(z+1, X);
        y = min(y, z);
      }
    }
    tim = t;

    if(a <= x)  cout << max(0, min(x + z, X)) << endl;
    else if(a >= y) cout << max(0, min(y + z, X)) << endl;
    else  cout << max(0, min(a + z, X)) << endl;

    //cout << x << " " << y << " " << z << endl;

  }

  return 0;
}

Submission Info

Judge Result