Submission #482429

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
482429	2021-10-24 14:33:55	oToToT	Circle selection (APIO18_circle_selection)	C++17	100 / 100	2287 ms	330812 KiB

circle_selection

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#pragma GCC optimize( "O3" )
#include <bits/stdc++.h>
using namespace std;
const int N = 300000 + 5;
const int C = 1000000000;
template < typename A, typename B >
using UMP = unordered_map< A, B >;
using lld = int64_t;
int n;
vector< int > ord;
lld x[ N ], y[ N ], r[ N ];
inline bool inter( int i, int j ) {
  const lld ox = x[ i ] - x[ j ];
  const lld oy = y[ i ] - y[ j ];
  const lld R = r[ i ] + r[ j ];
  return ox * ox + oy * oy <= R * R;
}
void init() {
  cin >> n;
  for ( int i = 0 ; i < n ; ++ i )
    cin >> x[ i ] >> y[ i ] >> r[ i ];
  for ( int i = 0 ; i < n ; ++ i )
    x[ i ] += C, y[ i ] += C;
  ord.resize( n );
  iota( ord.begin(), ord.end(), 0 );
  sort( ord.begin(), ord.end(), []( int a, int b ) {
 
 
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• Subtask 2: 12 / 12
• Subtask 3: 15 / 15
• Subtask 4: 23 / 23
• Subtask 5: 30 / 30
• Subtask 6: 13 / 13