Submission #943300

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
943300	2024-03-11 10:19:57	shoryu386	Road Construction (JOI21_road_construction)	C++17	32 / 100	3178 ms	2097152 KiB

road_construction

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#include <bits/stdc++.h>
using namespace std;
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
#define int long long
template <typename T>
using pbds_multiset = tree<T, null_type, less_equal<T>, rb_tree_tag, tree_order_statistics_node_update>;
main(){
  int n, k; cin >> n >> k;
  
  pair<int, int> arr[n];
  for (int x = 0; x < n; x++){
    cin >> arr[x].first >> arr[x].second;
  }
  
  //consider manhattan distance trick?
  for (int x = 0; x < n; x++){
    arr[x] = {arr[x].first + arr[x].second, arr[x].first - arr[x].second};
  }
  sort(arr, arr+n); //sorted by x-coord
  
  //now chebyshev distance, dist = max of difference
  
  //I want to bsearch, but bsearch only gives location of boundary; I need sum of boundary
  
 
 
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Compilation message (stderr)

road_construction.cpp:13:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   13 | main(){
      | ^~~~

• Subtask 1: 5 / 5
• Subtask 2: 0 / 6
• Subtask 3: 7 / 7
• Subtask 4: 20 / 20
• Subtask 5: 0 / 27
• Subtask 6: 0 / 35