oj.uz

Submission #620747

# Submission time Handle Problem Language Result Execution time Memory
620747 2022-08-03T08:44:42 Z mdn2002 Horses (IOI15_horses) C++14
17 / 100
 1500 ms 66484 KB 
#include "horses.h"

#include<bits/stdc++.h>
using namespace std;
long long n , m , mod = 1e9 + 7 , x [500005] , y [500005] , tree [2000006];
pair < long long , long long > treemx [2000006];
set < int > vall;
void up ( int nod , int l , int r , int x , long long val )
{
    if ( x < l || r < x ) return;
    if ( l == r )
    {
        tree [nod] = val;
        return;
    }
    int mid = ( l + r ) / 2;
    up ( nod * 2 , l , mid , x , val );
    up ( nod * 2 + 1 , mid + 1 , r , x , val );
    tree [nod] = ( tree [ nod * 2 ] * tree [ nod * 2 + 1 ] ) % mod;
}
long long qr ( int nod , int l , int r , int x , int y )
{
    if ( y < l || r < x ) return 1;
    if ( x <= l && r <= y ) return tree [nod];
    int mid = ( l + r ) / 2;
    return ( qr ( nod * 2 , l , mid , x , y ) * qr ( nod * 2 + 1 , mid + 1 , r , x , y ) ) % mod;
}
void upmx ( int nod , int l , int r , int x , long long val )
{
    if ( x < l || r < x ) return;
    if ( l == r )
    {
        treemx [nod] = { val , l };
        return;
    }
    int mid = ( l + r ) / 2;
    upmx ( nod * 2 , l , mid , x , val );
    upmx ( nod * 2 + 1 , mid + 1 , r , x , val );
    treemx [nod] = max ( treemx [ nod * 2 ] , treemx [ nod * 2 + 1 ] );
}
pair < long long , long long > qrmx ( int nod , int l , int r , int x , int y )
{
    if ( y < l || r < x ) return { -1 , -1 };
    if ( x <= l && r <= y ) return treemx [nod];
    int mid = ( l + r ) / 2;
    return max ( qrmx ( nod * 2 , l , mid , x , y ) , qrmx ( nod * 2 + 1 , mid + 1 , r , x , y ) );
}
long long get ( )
{
    vector < int > ids , nig;
    
    ids . push_back ( n );
    /*

    if ( vall . size () )
    {
        set < int > :: iterator it = -- vall . end ();
        for ( it ; it != vall . begin () ; it -- )
        {
            ids . push_back ( * it );
            //if ( ids . size () >= 50 ) break;
        }
    }
    */
    for ( int i = n - 1 ; i >= 0 ; i -- )
    {
        if ( x [i] > 1 ) ids . push_back ( i ) ;
    }
    if ( ids [ ids . size () - 1 ] != 0 ) ids . push_back ( 0 );


    reverse ( ids . begin () , ids . end () );

    for ( int i = 0 ; i < ids . size () ; i ++ )
    {
        if ( i )
        {
            int id = qrmx ( 1 , 0 , n , ids [ i - 1 ] + 1 , ids [i] - 1 ) . second;
            if ( id != -1 ) nig . push_back ( id );
        }
        if ( i != ids . size () - 1 ) nig . push_back ( ids [i] );
    }

    long long bst = 0 , mul = 1;
    for ( int i = 1 ; i < nig . size () ; i ++ )
    {
        int id = nig [i];
        mul *= x [id];
        if ( mul > y [bst] )
        {
            mul = 1;
            bst = id;
            continue;
        }
        long long almul = mul * y [id];
        if ( almul > y [bst] )
        {
            mul = 1;
            bst = id;
        }
    }

    long long bstt = 0 , mull = 1;
    for ( int i = 1 ; i < n ; i ++ )
    {
        mull *= x [i];
        if ( mull > y [bstt] )
        {
            mull = 1;
            bstt = i;
            continue;
        }
        long long almul = mull * y [i];
        if ( almul > y [bstt] )
        {
            mull = 1;
            bstt = i;
        }
    }
    if ( bst != bstt )
    {
        for ( int i = 0 ; i < n ; i -- )
        {
            bst ++;
            bstt --;
        }
    }
    long long ans = qr ( 1 , 0 , n , 0 , bst );
    ans = ( ans * y [bst] ) % mod;
    return ans;
}

int init(int N, int X[], int Y[]) {

	n = N;
    for ( int i = 0 ; i < n ; i ++ )
    {
        x [i] = X [i];
        if ( x [i] > 1 ) vall . insert ( i );
        up ( 1 , 0 , n , i , x [i] );
    }
    for ( int i = 0 ; i < n ; i ++ )
    {
        y [i] = Y [i];
        upmx ( 1 , 0 , n , i , y [i] );
    }
    return get ();

}

int updateX(int pos, int val) {

	if ( x [pos] > 1 ) vall . erase ( vall . lower_bound ( pos ) );
    x [pos] = val;
    if ( x [pos] > 1 ) vall . insert ( pos );
    up ( 1 , 0 , n , pos , x [pos] );
	return get ();

}

int updateY(int pos, int val) {

	y [pos] = val;
    upmx ( 1 , 0 , n , pos , val );
	return get ();

}

Compilation message

horses.cpp: In function 'void up(int, int, int, int, long long int)':
horses.cpp:8:41: warning: declaration of 'x' shadows a global declaration [-Wshadow]
    8 | void up ( int nod , int l , int r , int x , long long val )
      |                                     ~~~~^
horses.cpp:5:35: note: shadowed declaration is here
    5 | long long n , m , mod = 1e9 + 7 , x [500005] , y [500005] , tree [2000006];
      |                                   ^
horses.cpp: In function 'long long int qr(int, int, int, int, int)':
horses.cpp:21:54: warning: declaration of 'y' shadows a global declaration [-Wshadow]
   21 | long long qr ( int nod , int l , int r , int x , int y )
      |                                                  ~~~~^
horses.cpp:5:48: note: shadowed declaration is here
    5 | long long n , m , mod = 1e9 + 7 , x [500005] , y [500005] , tree [2000006];
      |                                                ^
horses.cpp:21:46: warning: declaration of 'x' shadows a global declaration [-Wshadow]
   21 | long long qr ( int nod , int l , int r , int x , int y )
      |                                          ~~~~^
horses.cpp:5:35: note: shadowed declaration is here
    5 | long long n , m , mod = 1e9 + 7 , x [500005] , y [500005] , tree [2000006];
      |                                   ^
horses.cpp: In function 'void upmx(int, int, int, int, long long int)':
horses.cpp:28:43: warning: declaration of 'x' shadows a global declaration [-Wshadow]
   28 | void upmx ( int nod , int l , int r , int x , long long val )
      |                                       ~~~~^
horses.cpp:5:35: note: shadowed declaration is here
    5 | long long n , m , mod = 1e9 + 7 , x [500005] , y [500005] , tree [2000006];
      |                                   ^
horses.cpp: In function 'std::pair<long long int, long long int> qrmx(int, int, int, int, int)':
horses.cpp:41:77: warning: declaration of 'y' shadows a global declaration [-Wshadow]
   41 | pair < long long , long long > qrmx ( int nod , int l , int r , int x , int y )
      |                                                                         ~~~~^
horses.cpp:5:48: note: shadowed declaration is here
    5 | long long n , m , mod = 1e9 + 7 , x [500005] , y [500005] , tree [2000006];
      |                                                ^
horses.cpp:41:69: warning: declaration of 'x' shadows a global declaration [-Wshadow]
   41 | pair < long long , long long > qrmx ( int nod , int l , int r , int x , int y )
      |                                                                 ~~~~^
horses.cpp:5:35: note: shadowed declaration is here
    5 | long long n , m , mod = 1e9 + 7 , x [500005] , y [500005] , tree [2000006];
      |                                   ^
horses.cpp: In function 'long long int get()':
horses.cpp:52:23: warning: conversion from 'long long int' to 'std::vector<int>::value_type' {aka 'int'} may change value [-Wconversion]
   52 |     ids . push_back ( n );
      |                       ^
horses.cpp:65:21: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   65 |     for ( int i = n - 1 ; i >= 0 ; i -- )
      |                   ~~^~~
horses.cpp:74:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   74 |     for ( int i = 0 ; i < ids . size () ; i ++ )
      |                       ~~^~~~~~~~~~~~~~~
horses.cpp:78:37: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   78 |             int id = qrmx ( 1 , 0 , n , ids [ i - 1 ] + 1 , ids [i] - 1 ) . second;
      |                                     ^
horses.cpp:78:77: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   78 |             int id = qrmx ( 1 , 0 , n , ids [ i - 1 ] + 1 , ids [i] - 1 ) . second;
      |                      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~
horses.cpp:81:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   81 |         if ( i != ids . size () - 1 ) nig . push_back ( ids [i] );
      |              ~~^~~~~~~~~~~~~~~~~~~~
horses.cpp:85:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   85 |     for ( int i = 1 ; i < nig . size () ; i ++ )
      |                       ~~^~~~~~~~~~~~~~~
horses.cpp:128:34: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
  128 |     long long ans = qr ( 1 , 0 , n , 0 , bst );
      |                                  ^
horses.cpp:128:42: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
  128 |     long long ans = qr ( 1 , 0 , n , 0 , bst );
      |                                          ^~~
horses.cpp: In function 'int init(int, int*, int*)':
horses.cpp:140:22: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
  140 |         up ( 1 , 0 , n , i , x [i] );
      |                      ^
horses.cpp:145:24: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
  145 |         upmx ( 1 , 0 , n , i , y [i] );
      |                        ^
horses.cpp:147:16: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
  147 |     return get ();
      |            ~~~~^~
horses.cpp: In function 'int updateX(int, int)':
horses.cpp:156:18: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
  156 |     up ( 1 , 0 , n , pos , x [pos] );
      |                  ^
horses.cpp:157:13: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
  157 |  return get ();
      |         ~~~~^~
horses.cpp: In function 'int updateY(int, int)':
horses.cpp:164:20: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
  164 |     upmx ( 1 , 0 , n , pos , val );
      |                    ^
horses.cpp:165:13: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
  165 |  return get ();
      |         ~~~~^~

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct

Subtask #2
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 24 ms 412 KB Output is correct
24 Correct 26 ms 424 KB Output is correct
25 Correct 78 ms 340 KB Output is correct
26 Correct 75 ms 340 KB Output is correct
27 Correct 16 ms 340 KB Output is correct
28 Correct 57 ms 456 KB Output is correct
29 Correct 9 ms 340 KB Output is correct
30 Correct 41 ms 468 KB Output is correct
31 Execution timed out 1573 ms 340 KB Time limit exceeded
32 Halted 0 ms 0 KB -

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1575 ms 66484 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 24 ms 416 KB Output is correct
24 Correct 26 ms 420 KB Output is correct
25 Correct 80 ms 444 KB Output is correct
26 Correct 82 ms 444 KB Output is correct
27 Correct 18 ms 340 KB Output is correct
28 Correct 66 ms 448 KB Output is correct
29 Correct 8 ms 340 KB Output is correct
30 Correct 42 ms 472 KB Output is correct
31 Execution timed out 1580 ms 320 KB Time limit exceeded
32 Halted 0 ms 0 KB -

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 26 ms 420 KB Output is correct
24 Correct 31 ms 428 KB Output is correct
25 Correct 86 ms 448 KB Output is correct
26 Correct 99 ms 448 KB Output is correct
27 Correct 20 ms 416 KB Output is correct
28 Correct 71 ms 448 KB Output is correct
29 Correct 9 ms 340 KB Output is correct
30 Correct 53 ms 468 KB Output is correct
31 Execution timed out 1589 ms 340 KB Time limit exceeded
32 Halted 0 ms 0 KB -