oj.uz

Submission #891233

# Submission time Handle Problem Language Result Execution time Memory
891233 2023-12-22T14:28:18 Z thunopro Sightseeing in Kyoto (JOI22_kyoto) C++14
40 / 100
 577 ms 76368 KB 
#include<bits/stdc++.h>
using namespace std ;
#define maxn 200009 
#define ll long long
#define fi first 
#define se second 
#define pb push_back 
#define left id<<1
#define right id<<1|1 
#define re exit(0); 

const int mod = 1e9+7 ; 
const int INF = 1e9 ; 
const int LOG = 18 ; 

typedef vector<int> vi ; 
typedef vector<ll> vl ; 
typedef pair<int,int> pii ; 
typedef vector<pii> vii ; 
typedef pair<ll,ll> pll ;  

void add ( int &a , int b ) 
{
	a += b ; 
	if ( a < 0 ) a += mod ; 
	if ( a >= mod ) a -= mod ; 
}

template < typename T > void chkmin (T &a , T b) { if (a>b) a=b ;} 
template < typename T > void chkmax (T &a , T b) { if (a<b) a=b ;}

void rf () 
{
	freopen ("bai1.inp","r",stdin) ; 
//	freopen ("bai1.out","w",stdout) ; 
}

int _pow ( int a , int n ) 
{
	if ( n == 0 ) return 1 ; 
	int res = _pow(a,n/2) ;
	if ( n % 2 ) return (1ll*res*res%mod*a%mod) ; 
	else return 1ll*res*res%mod ; 
}

int n , m ; 
int a [maxn] , b [maxn] ; 

ll dp [2009][2009] ;

void sub1 () 
{
	memset ( dp , 0x3f , sizeof dp ) ; 
	dp [1][1] = 0 ; 
	for ( int i = 1 ; i <= n ; i ++ ) for ( int j = 1 ; j <= m ; j ++ ) 
	{
		if ( i == 1 && j == 1 ) continue ; 
		if ( j > 1 ) chkmin (dp[i][j],dp[i][j-1]+a[i]) ; 
		if ( i > 1 ) chkmin (dp[i][j],dp[i-1][j]+b[j]) ; 
	}
	cout << dp [n][m] ; 
}

int row [maxn] , col [maxn] ; 
int lef [maxn] , rig [maxn] ; 
bool used [maxn] ; 

void sub2 () 
{	
	memset ( lef , 0x3f , sizeof lef ) ; 
	memset ( rig , 0x3f , sizeof rig ) ; 
	memset ( used , false , sizeof used ) ; 
	int num_r = 0 ; 
	
	for ( int i = 1 ; i <= n ; i ++ ) lef [i] = lef [i-1] , chkmin (lef[i],a[i]) ; 
	for ( int i = n ; i >= 1 ; i -- ) rig [i] = rig [i+1] , chkmin (rig[i],a[i]) ;
	
	for ( int i = 2 ; i < n ; i ++ ) if ( a [i] >= lef [i-1] && a [i] >= rig [i+1] ) used [i] = true ; 
	
	for ( int i = 1 ; i <= n ; i ++ ) 
	{
		if ( used [i] == false ) row [++num_r] = i ; 
	}
	
	memset ( lef , 0x3f , sizeof lef ) ; 
	memset ( rig , 0x3f , sizeof rig ) ; 
	memset ( used , false , sizeof used ) ; 
	int num_c = 0 ; 
	
	for ( int i = 1 ; i <= m ; i ++ ) lef [i] = lef [i-1] , chkmin (lef[i],b[i]) ; 
	for ( int i = m ; i >= 1 ; i -- ) rig [i] = rig [i+1] , chkmin (rig[i],b[i]) ;
	
	for ( int i = 2 ; i < m ; i ++ ) if ( b [i] >= lef [i-1] && b [i] >= rig [i+1] ) used [i] = true ; 
	
	for ( int i = 1 ; i <= m ; i ++ ) 
	{
		if ( used [i] == false ) col [++num_c] = i ; 
	}
	
	memset ( dp , 0x3f , sizeof dp ) ; 
	dp [1][1] = 0 ; 
	
	for ( int i = 1 ; i <= num_r ; i ++ ) 
	{
		for ( int j = 1 ; j <= num_c ; j ++ ) 
		{
			if ( i == 1 && j == 1 ) continue ; 
			if ( j > 1 ) chkmin (dp[i][j],dp[i][j-1]+1ll*(col[j]-col[j-1])*a[row[i]]) ;
			if ( i > 1 ) chkmin (dp[i][j],dp[i-1][j]+1ll*(row[i]-row[i-1])*b[col[j]]) ; 
		}
	}
	
	cout << dp [num_r][num_c] ; 
}

int main () 
{
	ios_base::sync_with_stdio(0) ; 
	cin.tie(0) ; cout.tie(0) ; 
//	rf () ; 
	cin >> n >> m ; 
	for ( int i = 1 ; i <= n ; i ++ ) cin >> a [i] ; 
	for ( int i = 1 ; i <= m ; i ++ ) cin >> b [i] ; 
	
	if ( n <= 1000 && m <= 1000 ) sub1 () ;
	else sub2 () ;  
}

Compilation message

kyoto.cpp: In function 'void rf()':
kyoto.cpp:34:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   34 |  freopen ("bai1.inp","r",stdin) ;
      |  ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 33116 KB Output is correct
2 Correct 5 ms 33116 KB Output is correct
3 Correct 4 ms 33284 KB Output is correct
4 Correct 4 ms 33116 KB Output is correct
5 Correct 4 ms 33116 KB Output is correct
6 Correct 4 ms 33304 KB Output is correct
7 Correct 5 ms 33268 KB Output is correct
8 Correct 4 ms 33116 KB Output is correct
9 Correct 8 ms 33116 KB Output is correct
10 Correct 8 ms 33264 KB Output is correct
11 Correct 8 ms 33220 KB Output is correct
12 Correct 8 ms 33112 KB Output is correct
13 Correct 7 ms 33116 KB Output is correct
14 Correct 8 ms 33528 KB Output is correct
15 Correct 8 ms 33112 KB Output is correct
16 Correct 7 ms 33112 KB Output is correct
17 Correct 7 ms 33116 KB Output is correct
18 Correct 4 ms 33116 KB Output is correct
19 Correct 4 ms 33112 KB Output is correct
20 Correct 4 ms 33116 KB Output is correct
21 Correct 4 ms 33116 KB Output is correct
22 Correct 4 ms 33256 KB Output is correct
23 Correct 4 ms 33116 KB Output is correct
24 Correct 4 ms 33284 KB Output is correct
25 Correct 4 ms 33116 KB Output is correct
26 Correct 4 ms 33112 KB Output is correct
27 Correct 4 ms 33112 KB Output is correct
28 Correct 4 ms 33116 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 33116 KB Output is correct
2 Correct 4 ms 33244 KB Output is correct
3 Correct 6 ms 35420 KB Output is correct
4 Correct 9 ms 35928 KB Output is correct
5 Correct 9 ms 35932 KB Output is correct
6 Correct 6 ms 35676 KB Output is correct
7 Correct 18 ms 36700 KB Output is correct
8 Correct 16 ms 36700 KB Output is correct
9 Correct 16 ms 36700 KB Output is correct
10 Correct 15 ms 36812 KB Output is correct
11 Correct 26 ms 36700 KB Output is correct
12 Correct 16 ms 36696 KB Output is correct
13 Correct 16 ms 36696 KB Output is correct
14 Correct 26 ms 36856 KB Output is correct
15 Correct 16 ms 36956 KB Output is correct
16 Correct 4 ms 33116 KB Output is correct
17 Correct 4 ms 33272 KB Output is correct
18 Correct 4 ms 33116 KB Output is correct
19 Correct 4 ms 33116 KB Output is correct
20 Correct 4 ms 33228 KB Output is correct
21 Correct 5 ms 33120 KB Output is correct
22 Correct 4 ms 33116 KB Output is correct
23 Correct 4 ms 33116 KB Output is correct
24 Correct 4 ms 33116 KB Output is correct
25 Correct 4 ms 33268 KB Output is correct
26 Correct 4 ms 33116 KB Output is correct

Subtask #3
0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 33116 KB Output is correct
2 Correct 5 ms 33116 KB Output is correct
3 Correct 4 ms 33284 KB Output is correct
4 Correct 4 ms 33116 KB Output is correct
5 Correct 4 ms 33116 KB Output is correct
6 Correct 4 ms 33304 KB Output is correct
7 Correct 5 ms 33268 KB Output is correct
8 Correct 4 ms 33116 KB Output is correct
9 Correct 8 ms 33116 KB Output is correct
10 Correct 8 ms 33264 KB Output is correct
11 Correct 8 ms 33220 KB Output is correct
12 Correct 8 ms 33112 KB Output is correct
13 Correct 7 ms 33116 KB Output is correct
14 Correct 8 ms 33528 KB Output is correct
15 Correct 8 ms 33112 KB Output is correct
16 Correct 7 ms 33112 KB Output is correct
17 Correct 7 ms 33116 KB Output is correct
18 Correct 4 ms 33116 KB Output is correct
19 Correct 4 ms 33112 KB Output is correct
20 Correct 4 ms 33116 KB Output is correct
21 Correct 4 ms 33116 KB Output is correct
22 Correct 4 ms 33256 KB Output is correct
23 Correct 4 ms 33116 KB Output is correct
24 Correct 4 ms 33284 KB Output is correct
25 Correct 4 ms 33116 KB Output is correct
26 Correct 4 ms 33112 KB Output is correct
27 Correct 4 ms 33112 KB Output is correct
28 Correct 4 ms 33116 KB Output is correct
29 Correct 4 ms 33116 KB Output is correct
30 Correct 4 ms 33244 KB Output is correct
31 Correct 6 ms 35420 KB Output is correct
32 Correct 9 ms 35928 KB Output is correct
33 Correct 9 ms 35932 KB Output is correct
34 Correct 6 ms 35676 KB Output is correct
35 Correct 18 ms 36700 KB Output is correct
36 Correct 16 ms 36700 KB Output is correct
37 Correct 16 ms 36700 KB Output is correct
38 Correct 15 ms 36812 KB Output is correct
39 Correct 26 ms 36700 KB Output is correct
40 Correct 16 ms 36696 KB Output is correct
41 Correct 16 ms 36696 KB Output is correct
42 Correct 26 ms 36856 KB Output is correct
43 Correct 16 ms 36956 KB Output is correct
44 Correct 4 ms 33116 KB Output is correct
45 Correct 4 ms 33272 KB Output is correct
46 Correct 4 ms 33116 KB Output is correct
47 Correct 4 ms 33116 KB Output is correct
48 Correct 4 ms 33228 KB Output is correct
49 Correct 5 ms 33120 KB Output is correct
50 Correct 4 ms 33116 KB Output is correct
51 Correct 4 ms 33116 KB Output is correct
52 Correct 4 ms 33116 KB Output is correct
53 Correct 4 ms 33268 KB Output is correct
54 Correct 4 ms 33116 KB Output is correct
55 Correct 12 ms 36700 KB Output is correct
56 Correct 5 ms 35416 KB Output is correct
57 Correct 5 ms 35412 KB Output is correct
58 Correct 7 ms 35676 KB Output is correct
59 Correct 22 ms 37980 KB Output is correct
60 Correct 21 ms 38004 KB Output is correct
61 Correct 21 ms 37980 KB Output is correct
62 Correct 21 ms 37976 KB Output is correct
63 Runtime error 577 ms 76368 KB Execution killed with signal 11
64 Halted 0 ms 0 KB -