#include "seats.h" #include <bits/stdc++.h> using namespace std; typedef pair<int,int> ii; int h,w; ii pos[1000005]; void give_initial_chart(int H, int W, std::vector<int> R, std::vector<int> C) { h=H,w=W; for (int x=0;x<h*w;x++){ pos[x]=ii(R[x],C[x]); } //print(); } int swap_seats(int a, int b) { swap(pos[a],pos[b]); //print(); int x1,x2,y1,y2; x1=x2=pos[0].first; y1=y2=pos[0].second; int s=1; int biggest=0; int res=1; for (int x=1;x<h*w;x++){ while (pos[x].first<x1){ x1--; s+=y2-y1+1; } while (x2<pos[x].first){ x2++; s+=y2-y1+1; } while (pos[x].second<y1){ y1--; s+=x2-x1+1; } while (y2<pos[x].second){ y2++; s+=x2-x1+1; } if (s==x+1) res++; } return res; }

seats.cpp: In function 'int swap_seats(int, int)':
seats.cpp:28:6: warning: unused variable 'biggest' [-Wunused-variable]
  int biggest=0;
      ^~~~~~~