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답안 #236395

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
236395 2020-06-01T19:19:27 Z AS82 Pinball (JOI14_pinball) C++14
100 / 100
 309 ms 17948 KB 
// In the Name of Allah
// Ya Ali

#include <bits/stdc++.h>

using namespace std;

#define int long long
#define F first
#define S second
#define all( x ) x.begin() , x.end()
#define pb push_back
#define mp make_pair

const int maxn = 1e5 + 10 ;
const int INF = 1e18 ;

int n , m , ind[ maxn ] , a[ maxn ] , b[ maxn ] , c[ maxn ] , d[ maxn ] , l1[ maxn ] , r1[ maxn ] , ans = INF ;
int mn1[ 4*maxn ] , mn2[ 4*maxn ] ;
vector< pair< int , int > > vv ;

void build()
{
  for(int i = 0 ; i <= 4*m ; i ++)
    mn1[ i ] = mn2[ i ] = INF;
}

int ask1( int x , int y , int l = 0 , int r = m-1 , int node = 1 )
{
  if( l > y || r < x )
    return INF ;
  if( l >= x && r <= y )
    return mn1[ node ];

  int mid = (r+l)/2 ;
  return min( ask1( x , y , l , mid , 2*node ) , ask1( x , y , mid+1 , r , (2*node)+1 ) ) ;
}
int ask2( int x , int y , int l = 0 , int r = m-1 , int node = 1 )
{
  if( l > y || r < x )
    return INF ;
  if( l >= x && r <= y )
    return mn2[ node ];

  int mid = (r+l)/2 ;
  return min( ask2( x , y , l , mid , 2*node ) , ask2( x , y , mid+1 , r , (2*node)+1 ) ) ;
}

void up1( int x , int y , int va , int l = 0 , int r = m-1 , int node = 1 )
{
  if( l > y || r < x )
    return;
  if( l >= x && r <= y ){
    mn1[ node ] = va ;
    return ;
  }

  int mid = (r+l)/2;
  up1( x , y , va , l , mid , 2*node ) ;
  up1( x , y , va , mid+1 , r , (2*node)+1 ) ;
  mn1[ node ] = min( mn1[ 2*node ] , mn1[ (2*node)+1 ] ) ;
}

void up2( int x , int y , int va , int l = 0 , int r = m-1 , int node = 1 )
{
  if( l > y || r < x )
    return;
  if( l >= x && r <= y ){
    mn2[ node ] = va ;
    return ;
  }

  int mid = (r+l)/2;
  up2( x , y , va , l , mid , 2*node ) ;
  up2( x , y , va , mid+1 , r , (2*node)+1 ) ;
  mn2[ node ] = min( mn2[ 2*node ] , mn2[ (2*node)+1 ] ) ;
}

signed main()
{
ios_base::sync_with_stdio(0) , cin.tie(0) , cout.tie(0) ;

cin >> m >> n ;
for(int i = 1 ; i <= m ; i ++){
  cin >> a[ i ] >> b[ i ] >> c[ i ] >> d[ i ];
  vv.pb({ c[ i ] , i }) ;
}

sort( all( vv ) ) ;
for(int i = 0 ; i < m ; i ++)
  ind[ vv[ i ].S ] = i ;

for(int i = 1 ; i <= m ; i ++){
  l1[ i ] = lower_bound( all( vv ) , mp( a[ i ] , 0ll ) ) - vv.begin();
  r1[ i ] = upper_bound( all( vv ) , mp( b[ i ] , INF ) ) - vv.begin();
  r1[ i ] -- ;
}

build();

for(int i = 1 ; i <= m ; i ++){

//for dp1
 int x = INF ;

 if( a[ i ] == 1 )x = d[ i ] ;
 x = min( x , ask1( l1[ i ] , r1[ i ] ) + d[ i ] ) ;
 up1( ind[ i ] , ind[ i ] , x ) ;

// for dp2
 x = INF ;

 if( b[ i ] == n )x = d[ i ] ;
 x = min( x , ask2( l1[ i ] , r1[ i ] ) + d[ i ] ) ;
 up2( ind[ i ] , ind[ i ] , x );

  if( a[ i ] > 1 && b[ i ] < n )ans = min( ans , ask1( l1[ i ] , r1[ i ] ) + ask2( l1[ i ] , r1[ i ] ) + d[ i ] ) ;
  if( a[ i ] == 1 && b[ i ] < n )ans = min( ans , ask2( l1[ i ] , r1[ i ] ) + d[ i ] ) ;
  if( a[ i ] > 1 && b[ i ] == n )ans = min( ans , ask1( l1[ i ] , r1[ i ] ) + d[ i ] ) ;
  if( a[ i ] == 1 && b[ i ] == n )ans = min( ans , d[ i ] ) ;
}

if( ans == INF )cout << -1 ;
else cout << ans ;

    return 0;
}

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 4 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct

Subtask #2
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 4 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 512 KB Output is correct

Subtask #3
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 4 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 512 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 512 KB Output is correct
17 Correct 7 ms 512 KB Output is correct
18 Correct 6 ms 512 KB Output is correct
19 Correct 6 ms 512 KB Output is correct
20 Correct 7 ms 512 KB Output is correct
21 Correct 5 ms 512 KB Output is correct
22 Correct 6 ms 512 KB Output is correct
23 Correct 6 ms 512 KB Output is correct
24 Correct 6 ms 512 KB Output is correct

Subtask #4
49.0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 4 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 512 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 512 KB Output is correct
17 Correct 7 ms 512 KB Output is correct
18 Correct 6 ms 512 KB Output is correct
19 Correct 6 ms 512 KB Output is correct
20 Correct 7 ms 512 KB Output is correct
21 Correct 5 ms 512 KB Output is correct
22 Correct 6 ms 512 KB Output is correct
23 Correct 6 ms 512 KB Output is correct
24 Correct 6 ms 512 KB Output is correct
25 Correct 27 ms 2176 KB Output is correct
26 Correct 65 ms 4732 KB Output is correct
27 Correct 195 ms 12344 KB Output is correct
28 Correct 280 ms 17628 KB Output is correct
29 Correct 139 ms 9072 KB Output is correct
30 Correct 309 ms 17700 KB Output is correct
31 Correct 295 ms 17640 KB Output is correct
32 Correct 294 ms 17640 KB Output is correct
33 Correct 39 ms 3836 KB Output is correct
34 Correct 123 ms 9072 KB Output is correct
35 Correct 183 ms 17644 KB Output is correct
36 Correct 282 ms 17640 KB Output is correct
37 Correct 240 ms 17948 KB Output is correct
38 Correct 234 ms 17640 KB Output is correct