#include <bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
//using namespace __gnu_pbds;
bool YES(bool f){ if(f) cout << "Yes\n" ; else cout << "No\n" ; return f ; }
void YES(){YES(1);}
void NO(){YES(0);}
void fopn(string name){freopen((name+".in").c_str(),"r",stdin); freopen((name+".out").c_str(),"w",stdout);}
//#define ordered_set tree<int, null_type,less_equal<int>, rb_tree_tag,tree_order_statistics_node_update>
#define ios ios_base::sync_with_stdio(0) ; cin.tie(0) ; cout.tie(0);
#define int long long
#define ld long double
#define pii pair <int , int>
#define all(x) x.begin() , x.end()
#define ff first
#define ss second
#define endl '\n'
const int N = 2e6 + 5 ;
const int inf = 1e18 ;
const int mod = 998244353 ;
const double eps = 1e-8 ;
int binpow( int a , int b ){
if ( b == 0 ) return 1 ;
int x = binpow ( a , b/2 ) ;
if ( !(b%2) ) return (x*x) ;
return (x*x*a) ;
}
template <class T>
bool chmax( T& x , const T& y ){
bool f = 0 ;
if ( x < y ) x = y , f = 1 ;
return f ;
}
template <class T>
bool chmin( T &x , const T &y ){
bool f = 0 ;
if ( x > y ) x = y , f = 1 ;
return f ;
}
//code
int n , k ;
vector <int> ans ;
pii a[N] ;
set <pair <int , pii>> st ;
int dist ( int x , int y , int x1 , int y1 ){
return abs(x-x1)+abs(y-y1) ;
}
int slow ( int l , int r ){
int res = inf ;
for ( int i = l ; i <= r ; i ++ ){
for ( int j = i+1 ; j <= r ; j ++ ) chmin ( res , dist( a[i].ff , a[i].ss , a[j].ff , a[j].ss ) ) ;
}
return res ;
}
int get ( int l , int r ){
if ( r - l + 1 < 5 ) return slow(l,r) ;
int mid = ( l + r ) / 2 ;
int ml = get ( l , mid ) ;
int mr = get ( mid+1 , r ) ;
int mn = min ( ml , mr ) ;
int ans = mn ;
vector <pii> vec ;
for ( int i = l ; i <= r ; i ++ ) if ( abs( a[i].ff-a[mid].ff ) <= mn ) vec.push_back({ a[i].ss , a[i].ff }) ;
sort ( vec.begin() , vec.end() ) ;
for ( int i = 0 ; i < vec.size() ; i ++ ){
for ( int j = i+1 ; j < vec.size() && vec[j].ff-vec[i].ff < mn ; j ++ ){
chmin ( ans , dist ( vec[i].ff , vec[i].ss , vec[j].ff , vec[j].ss ) ) ;
}
}
return ans ;
}
void solve(){
cin >> n >> k ;
for ( int i = 0 ; i < n ; i ++ ) cin >> a[i].ss >> a[i].ff ;
sort ( a , a + n ) ;
if ( a[0].ff == a[n-1].ff ){
for ( int i = 0 ; i < n-1 ; i ++ ){
st.insert({a[i+1].ss-a[i].ss,{i,i+1}}) ;
}
while ( k -- ){
auto it = *st.begin() ;
st.erase(st.begin()) ;
cout << it.ff << endl ;
if ( it.ss.ss != n-1 )
st.insert({a[it.ss.ss+1].ss-a[it.ss.ff].ss,{it.ss.ff,it.ss.ss+1}}) ;
}
return ;
}
for ( int i = 0 ; i < n ; i ++ ) swap ( a[i].ff , a[i].ss ) ;
if ( n <= 5000 ){
for ( int i = 0 ; i < n ; i ++ ){
for ( int j = i+1 ; j < n ; j ++ ) ans.push_back(dist(a[i].ff,a[i].ss,a[j].ff,a[j].ss)) ;
}
sort ( ans.begin() , ans.end() ) ;
for ( int i = 0 ; i < k ; i ++ ) cout << ans[i] << '\n' ;
return ;
}
sort ( a , a + n ) ;
cout << get ( 0 , n-1 ) ;
}
signed main(){
ios ;
int t = 1 ;
//cin >> t ;
while ( t -- ) solve() ;
}
Compilation message
road_construction.cpp: In function 'long long int get(long long int, long long int)':
road_construction.cpp:75:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
75 | for ( int i = 0 ; i < vec.size() ; i ++ ){
| ~~^~~~~~~~~~~~
road_construction.cpp:76:25: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
76 | for ( int j = i+1 ; j < vec.size() && vec[j].ff-vec[i].ff < mn ; j ++ ){
| ~~^~~~~~~~~~~~
road_construction.cpp: In function 'void fopn(std::string)':
road_construction.cpp:10:31: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
10 | void fopn(string name){freopen((name+".in").c_str(),"r",stdin); freopen((name+".out").c_str(),"w",stdout);}
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
road_construction.cpp:10:72: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
10 | void fopn(string name){freopen((name+".in").c_str(),"r",stdin); freopen((name+".out").c_str(),"w",stdout);}
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
53 ms |
7100 KB |
Output is correct |
2 |
Correct |
63 ms |
7092 KB |
Output is correct |
3 |
Correct |
43 ms |
5132 KB |
Output is correct |
4 |
Correct |
32 ms |
5140 KB |
Output is correct |
5 |
Correct |
47 ms |
6100 KB |
Output is correct |
6 |
Correct |
15 ms |
6100 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
382 ms |
21396 KB |
Output is correct |
2 |
Correct |
377 ms |
21588 KB |
Output is correct |
3 |
Correct |
56 ms |
2852 KB |
Output is correct |
4 |
Correct |
173 ms |
21176 KB |
Output is correct |
5 |
Correct |
161 ms |
21588 KB |
Output is correct |
6 |
Correct |
177 ms |
21624 KB |
Output is correct |
7 |
Correct |
176 ms |
20876 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
125 ms |
4716 KB |
Output is correct |
2 |
Correct |
124 ms |
4716 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
95 ms |
20364 KB |
Output is correct |
5 |
Correct |
144 ms |
4768 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
125 ms |
4716 KB |
Output is correct |
2 |
Correct |
124 ms |
4716 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
95 ms |
20364 KB |
Output is correct |
5 |
Correct |
144 ms |
4768 KB |
Output is correct |
6 |
Incorrect |
120 ms |
4708 KB |
Output isn't correct |
7 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
53 ms |
7100 KB |
Output is correct |
2 |
Correct |
63 ms |
7092 KB |
Output is correct |
3 |
Correct |
43 ms |
5132 KB |
Output is correct |
4 |
Correct |
32 ms |
5140 KB |
Output is correct |
5 |
Correct |
47 ms |
6100 KB |
Output is correct |
6 |
Correct |
15 ms |
6100 KB |
Output is correct |
7 |
Incorrect |
48 ms |
2688 KB |
Output isn't correct |
8 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
53 ms |
7100 KB |
Output is correct |
2 |
Correct |
63 ms |
7092 KB |
Output is correct |
3 |
Correct |
43 ms |
5132 KB |
Output is correct |
4 |
Correct |
32 ms |
5140 KB |
Output is correct |
5 |
Correct |
47 ms |
6100 KB |
Output is correct |
6 |
Correct |
15 ms |
6100 KB |
Output is correct |
7 |
Correct |
382 ms |
21396 KB |
Output is correct |
8 |
Correct |
377 ms |
21588 KB |
Output is correct |
9 |
Correct |
56 ms |
2852 KB |
Output is correct |
10 |
Correct |
173 ms |
21176 KB |
Output is correct |
11 |
Correct |
161 ms |
21588 KB |
Output is correct |
12 |
Correct |
177 ms |
21624 KB |
Output is correct |
13 |
Correct |
176 ms |
20876 KB |
Output is correct |
14 |
Correct |
125 ms |
4716 KB |
Output is correct |
15 |
Correct |
124 ms |
4716 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
95 ms |
20364 KB |
Output is correct |
18 |
Correct |
144 ms |
4768 KB |
Output is correct |
19 |
Incorrect |
120 ms |
4708 KB |
Output isn't correct |
20 |
Halted |
0 ms |
0 KB |
- |