Submission #1018259

#	Time	Username	Problem	Language	Result	Execution time	Memory
1018259		vjudge1	Seats (IOI18_seats)	C++17	11 / 100	4082 ms	24144 KiB

seats

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

vector<int> r;
vector<int> c;
int h,w;

void give_initial_chart(int H, int W, vector<int> R, vector<int> C) {
  r = R;
  c = C;
  h=H;
  w=W;
}

int swap_seats(int a, int b) {
  swap(r[a], r[b]);
  swap(c[a], c[b]);
  int ans=0;
  int minr=1e9;
  int maxr=0;
  int minc=1e9;
  int maxc=0;
  for(int i=0; i<r.size(); ++i){
    minr=min(minr, r[i]);
    maxr=max(maxr, r[i]);
    minc=min(minc, c[i]);
    maxc=max(maxc, c[i]);
    int sz=(maxr-minr+1)*(maxc-minc+1);
    if(sz-1==i){
      ans++;
    }
  }
  return ans;
}

Compilation message (stderr)

seats.cpp: In function 'int swap_seats(int, int)':
seats.cpp:24:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |   for(int i=0; i<r.size(); ++i){
      |                ~^~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 6 / 6
• Subtask 3: 0 / 20
• Subtask 4: 0 / 6
• Subtask 5: 0 / 33
• Subtask 6: 0 / 30