oj.uz

Submission #799181

# Submission time Handle Problem Language Result Execution time Memory
799181 2023-07-31T10:34:28 Z lollipop Sky Walking (IOI19_walk) C++17
24 / 100
 2832 ms 1048576 KB 
#include<bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/rope>
#define ll long long
#define int long long
#define pb push_back
#define s second
#define f first
#define pf push_front
#define inf 100000000000000000
#define bitebi __builtin_popcountll
#define FOR( i , n ) for( int i = 0 ; i < n ; i ++ )
#define YES cout <<"YES\n"
#define NO cout << "NO\n"
#define debug cout << "Here Fine" << endl ;
#define pr pair < int , int >
#define fbo find_by_order // returns iterator
#define ook order_of_key // returns strictly less numbers than key
using namespace std ;
//#pragma GCC optimize("Ofast")
//#pragma GCC target("avx,avx2,fma")
using namespace __gnu_pbds;
using namespace __gnu_cxx;
#define ordered_set tree<int, null_type,less<int>, rb_tree_tag,tree_order_statistics_node_update>
const double Pi=acos(-1.0);
const double EPS=1E-8;
const int mod =  1000000007 ;
const int mod1 = 998244353 ;
const int NN = 5e6 + 10 ;
mt19937 R(time(0));
map < int , int > ma[ NN ] , ma1 ;
//#include "walk.h"

vector < pair < int , int > > ve[ NN ] , v[ NN ] ;
set < int > se[ NN ] ;
ll been[ NN ] ; 
ll dij( int st , int fn , int cnt ){
	FOR( i , cnt ) been[ i ] = inf ;
	been[ st ] = 0 ;
	priority_queue < pair < ll , int > > qu ;
	qu.push( { 0 , st } ) ;
	while( true ){
      if( qu.size() == 0 ) break ;
	  pair < ll , int > p ;
	  p = qu.top() ; qu.pop() ;
	  p.f = abs( p.f ) ;
	  if( p.f > been[ p.s ] ) continue ;
	  for( auto x : v[ p.s ] ){
		ll lil = p.f ; lil += x.s ;
		 if( been[ x.f ] > lil ){
			been[ x.f ] = lil ;
			qu.push( { -been[ x.f ] , x.f } ) ;
		 }
	  }
	}
	if( been[ fn ] == inf ) return -1 ;
	return been[ fn ] ;
}

pair < int , int > node[ 4 * NN ] ;
int arr[ NN ] ;
void build( int v , int vl , int vr ){
	 if( vl == vr ){
		node[ v ] = { arr[ vl ] , vl } ;
		return ;
	 }
	 int vm = ( vl + vr ) / 2 ; 
	 build( v + v , vl , vm ) ;
	 build( v + v + 1 , vm + 1 , vr ) ;
	 node[ v ] = max( node[ v + v ] , node[ v + v + 1 ] ) ;
	 return ;
}
void update( int v , int vl , int vr , int pos , int val ){
	 if( vl == vr ){
		node[ v ].f = val ;
		return ;
	 }
	 int vm = ( vl + vr ) / 2 ;
	 if( vm >= pos ) update( v + v , vl , vm , pos , val ) ;
	 else update( v + v + 1 , vm + 1 , vr , pos , val ) ;
	 node[ v ] = max( node[ v + v ] , node[ v + v + 1 ] ) ;
	 return ; 
}
pair < int , int > get( int v , int vl , int vr , int l , int r ){
	 if( l > r ) return { -1 , -1 } ;
	 if( vl == l && vr == r ) return node[ v ] ;
	 int vm = ( vl + vr ) / 2 ;
	 pair < int , int > a , b ;
	 a = get( v + v , vl , vm , l , min( vm , r ) ) ; 
	 b = get( v + v + 1 , vm + 1 , vr , max( vm + 1 , l ) , r ) ;
	 return max( a , b ) ;
}

ll min_distance(vector<signed> x,vector<signed> h,vector<signed> l,
                vector<signed> r,vector<signed> y, signed s, signed g){
    if( x.size() <= 50 && l.size() <= 50 ){
      FOR( i ,  l.size() ){
		int L = l[ i ] ; 
		int R = r[ i ] ;
		int H = y[ i ] ;
		int lst = L ;
		for( int j = L + 1 ; j <= R ; j ++ ){
           if( h[ j ] >= H ){
			ve[ lst ].pb( { j , H } ) ;
			ve[ j ].pb( { lst , H } ) ; 
			se[ j ].insert( H ) ;
			se[ lst ].insert( H ) ; 
			lst = j ;
		   }
		}
	  }
	}
	else{
      FOR( i , x.size() ){
		arr[ i + 1 ] = h[ i ] ;
	  }
      build( 1 , 1 , x.size() ) ;
      FOR( i ,  l.size() ){
		int L = l[ i ] ; 
		int R = r[ i ] ;
		int H = y[ i ] ;
		vector < int > vu ; 
		while( true ){
          pair < int , int > b ;
		  b = get( 1 , 1 , x.size() , L + 1 , R + 1 ) ;
		  if( b.f < H ) break ;
		  vu.pb( b.s - 1 ) ; 
		  update( 1 , 1 , x.size() , b.s , -1 ) ;
		}
		sort( vu.begin() , vu.end() ) ;
		FOR( i , vu.size() - 1 ){
			int lst = vu[ i ] ; int j = vu[ i + 1 ] ;
			ve[ lst ].pb( { j , H } ) ;
			ve[ j ].pb( { lst , H } ) ; 
			se[ j ].insert( H ) ;
			se[ lst ].insert( H ) ; 			
		}
		for( auto X : vu ){
			update( 1 , 1 , x.size() , X + 1 , h[ X ] ) ;
		}
	  }     

	}
	int cnt = 1 ;
	FOR( i , x.size() ){
      se[ i ].insert( 0 ) ;
	  int lst = -1 ;
	  for( auto x : se[ i ] ){
         ma[ i ][ x ] = cnt ; cnt ++ ;
		 if( lst == -1 ){
			lst = x ; continue ;
		 }
		 int df = x - lst ;
		 v[ ma[ i ][ x ] ].pb( { ma[ i ][ lst ] , df } ) ;
		 v[ ma[ i ][ lst ] ].pb( { ma[ i ][ x ] , df } ) ;
		 lst = x ;
	  }
	}
    FOR( i , x.size() ){
		for( auto z : ve[ i ] ){
			int a = ma[ i ][ z.s ] ;
			int b = ma[ z.f ][ z.s ] ;
			int df = abs( x[ i ] - x[ z.f ] ) ;
			v[ a ].pb( { b , df } ) ;
		}
	}
	int st = ma[ s ][ 0 ] ;
	int fn = ma[ g ][ 0 ] ;
	return dij( st , fn , cnt ) ;
}


// int main() {
// 	int n, m;
// 	cin >> n >> m ;
// 	vector<int> x(n), h(n);
// 	for (int i = 0; i < n; i++)
// 		cin >> x[ i ] >> h[ i ] ;
// 	vector<int> l(m), r(m), y(m);
// 	for (int i = 0; i < m; i++)
// 		cin >> l[ i ] >> r[ i ] >> y[ i ] ;
// 	int s, g;
// 	cin >> s >> g ; 
//     debug ;
// 	long long result = 10 ; //min_distance(x, h, l, r, y, s, g);

// 	printf("%lld\n", result);
// 	return 0;
// }

Compilation message

walk.cpp: In function 'long long int min_distance(std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>, int, int)':
walk.cpp:13:41: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 | #define FOR( i , n ) for( int i = 0 ; i < n ; i ++ )
......
   98 |       FOR( i ,  l.size() ){
      |            ~~~~~~~~~~~~~                 
walk.cpp:98:7: note: in expansion of macro 'FOR'
   98 |       FOR( i ,  l.size() ){
      |       ^~~
walk.cpp:13:41: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 | #define FOR( i , n ) for( int i = 0 ; i < n ; i ++ )
......
  115 |       FOR( i , x.size() ){
      |            ~~~~~~~~~~~~                  
walk.cpp:115:7: note: in expansion of macro 'FOR'
  115 |       FOR( i , x.size() ){
      |       ^~~
walk.cpp:13:41: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 | #define FOR( i , n ) for( int i = 0 ; i < n ; i ++ )
......
  119 |       FOR( i ,  l.size() ){
      |            ~~~~~~~~~~~~~                 
walk.cpp:119:7: note: in expansion of macro 'FOR'
  119 |       FOR( i ,  l.size() ){
      |       ^~~
walk.cpp:13:41: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 | #define FOR( i , n ) for( int i = 0 ; i < n ; i ++ )
......
  132 |   FOR( i , vu.size() - 1 ){
      |        ~~~~~~~~~~~~~~~~~                 
walk.cpp:132:3: note: in expansion of macro 'FOR'
  132 |   FOR( i , vu.size() - 1 ){
      |   ^~~
walk.cpp:13:41: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 | #define FOR( i , n ) for( int i = 0 ; i < n ; i ++ )
......
  146 |  FOR( i , x.size() ){
      |       ~~~~~~~~~~~~                       
walk.cpp:146:2: note: in expansion of macro 'FOR'
  146 |  FOR( i , x.size() ){
      |  ^~~
walk.cpp:13:41: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 | #define FOR( i , n ) for( int i = 0 ; i < n ; i ++ )
......
  160 |     FOR( i , x.size() ){
      |          ~~~~~~~~~~~~                    
walk.cpp:160:5: note: in expansion of macro 'FOR'
  160 |     FOR( i , x.size() ){
      |     ^~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 329 ms 704728 KB Output is correct
2 Correct 284 ms 704808 KB Output is correct
3 Correct 278 ms 704712 KB Output is correct
4 Correct 279 ms 704784 KB Output is correct
5 Correct 304 ms 704884 KB Output is correct
6 Correct 283 ms 704964 KB Output is correct
7 Correct 283 ms 704988 KB Output is correct
8 Correct 284 ms 704844 KB Output is correct
9 Correct 277 ms 704844 KB Output is correct
10 Correct 284 ms 704928 KB Output is correct
11 Correct 279 ms 704784 KB Output is correct
12 Correct 295 ms 704860 KB Output is correct
13 Correct 283 ms 704796 KB Output is correct
14 Correct 279 ms 704740 KB Output is correct
15 Correct 293 ms 704768 KB Output is correct
16 Correct 278 ms 704780 KB Output is correct
17 Correct 280 ms 704972 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 289 ms 704696 KB Output is correct
2 Correct 281 ms 704704 KB Output is correct
3 Correct 1492 ms 907116 KB Output is correct
4 Correct 1349 ms 916316 KB Output is correct
5 Correct 1067 ms 890104 KB Output is correct
6 Correct 959 ms 868048 KB Output is correct
7 Correct 1051 ms 890348 KB Output is correct
8 Correct 1876 ms 964472 KB Output is correct
9 Correct 1162 ms 888816 KB Output is correct
10 Correct 1842 ms 1006676 KB Output is correct
11 Correct 868 ms 810496 KB Output is correct
12 Correct 649 ms 776580 KB Output is correct
13 Correct 1675 ms 971260 KB Output is correct
14 Correct 633 ms 773908 KB Output is correct
15 Correct 674 ms 775884 KB Output is correct
16 Correct 711 ms 777680 KB Output is correct
17 Correct 644 ms 775204 KB Output is correct
18 Correct 812 ms 782568 KB Output is correct
19 Correct 315 ms 708132 KB Output is correct
20 Correct 423 ms 739192 KB Output is correct
21 Correct 603 ms 771520 KB Output is correct
22 Correct 640 ms 775736 KB Output is correct
23 Correct 790 ms 792048 KB Output is correct
24 Correct 664 ms 776236 KB Output is correct
25 Correct 642 ms 774088 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 494 ms 724704 KB Output is correct
2 Runtime error 2832 ms 1048576 KB Execution killed with signal 9
3 Halted 0 ms 0 KB -

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 494 ms 724704 KB Output is correct
2 Runtime error 2832 ms 1048576 KB Execution killed with signal 9
3 Halted 0 ms 0 KB -

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 329 ms 704728 KB Output is correct
2 Correct 284 ms 704808 KB Output is correct
3 Correct 278 ms 704712 KB Output is correct
4 Correct 279 ms 704784 KB Output is correct
5 Correct 304 ms 704884 KB Output is correct
6 Correct 283 ms 704964 KB Output is correct
7 Correct 283 ms 704988 KB Output is correct
8 Correct 284 ms 704844 KB Output is correct
9 Correct 277 ms 704844 KB Output is correct
10 Correct 284 ms 704928 KB Output is correct
11 Correct 279 ms 704784 KB Output is correct
12 Correct 295 ms 704860 KB Output is correct
13 Correct 283 ms 704796 KB Output is correct
14 Correct 279 ms 704740 KB Output is correct
15 Correct 293 ms 704768 KB Output is correct
16 Correct 278 ms 704780 KB Output is correct
17 Correct 280 ms 704972 KB Output is correct
18 Correct 289 ms 704696 KB Output is correct
19 Correct 281 ms 704704 KB Output is correct
20 Correct 1492 ms 907116 KB Output is correct
21 Correct 1349 ms 916316 KB Output is correct
22 Correct 1067 ms 890104 KB Output is correct
23 Correct 959 ms 868048 KB Output is correct
24 Correct 1051 ms 890348 KB Output is correct
25 Correct 1876 ms 964472 KB Output is correct
26 Correct 1162 ms 888816 KB Output is correct
27 Correct 1842 ms 1006676 KB Output is correct
28 Correct 868 ms 810496 KB Output is correct
29 Correct 649 ms 776580 KB Output is correct
30 Correct 1675 ms 971260 KB Output is correct
31 Correct 633 ms 773908 KB Output is correct
32 Correct 674 ms 775884 KB Output is correct
33 Correct 711 ms 777680 KB Output is correct
34 Correct 644 ms 775204 KB Output is correct
35 Correct 812 ms 782568 KB Output is correct
36 Correct 315 ms 708132 KB Output is correct
37 Correct 423 ms 739192 KB Output is correct
38 Correct 603 ms 771520 KB Output is correct
39 Correct 640 ms 775736 KB Output is correct
40 Correct 790 ms 792048 KB Output is correct
41 Correct 664 ms 776236 KB Output is correct
42 Correct 642 ms 774088 KB Output is correct
43 Correct 494 ms 724704 KB Output is correct
44 Runtime error 2832 ms 1048576 KB Execution killed with signal 9
45 Halted 0 ms 0 KB -