oj.uz

Submission #890268

# Submission time Handle Problem Language Result Execution time Memory
890268 2023-12-20T22:36:02 Z thunopro Bali Sculptures (APIO15_sculpture) C++14
0 / 100
 73 ms 3788 KB 
#include<bits/stdc++.h>
using namespace std ; 
#define maxn 300009 
#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);
#define _lower(v,x) lower_bound(v.begin(),v.end(),x)-v.begin()+1

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

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

void add ( int&a , int b ) { if ((a+=b) > mod ) a -= mod ; } 
void sub ( int&a , int b ) { if ((a-=b) < 0 ) a += mod ; } 
template<typename T> void chkmin(T& x, T y) {if(x > y) x = y;}
template<typename T> void chkmax(T& x, T y) {if(x < y) x = y;}

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 , A , B , a [maxn] ; 

void sub1 () 
{
	int res = INF*2 ; 
	for ( int mask = 0 ; mask < (1<<n) ; mask ++ ) 
	{
		int sum_or = 0 , sum = 0 , num = 0 ; 
		for ( int i = 0 ; i <= n ; i ++ ) 
		{
			if ( i == n || mask >> i & 1 ) 
			{
				sum += a [i+1] ; 
				num ++ ; 
				sum_or |= sum ; 
				sum = 0 ; 
			}
			else sum += a [i+1] ;
		}
		if ( num >= A && num <= B ) chkmin (res,sum_or) ; 
	}
	cout << res ; 
}

int sum [maxn] ; 
void sub2 () 
{
	bool dp [59][22][1009] ; 
	memset ( dp , false , sizeof dp ) ; 
	dp [0][0][0] = true ; 
	const int N = 1000 ; 
	for ( int i = 0 ; i < n ; i ++ ) 
	{
		for ( int j = 0 ; j <= min(i,B-1) ; j ++ ) 
		{
			for ( int k = 0 ; k <= N ; k ++ ) 
			{
				if ( !dp[i][j][k] ) continue ; 
				for ( int t = i+1 ; t <= n ; t ++ ) 
				{
					dp [t][j+1][k|(sum[t]-sum[i])] |= dp [i][j][k] ; 
				}
			}
		}
	}
	int res = 2*INF ; 
	for ( int j = 1 ; j <= B ; j ++ ) for ( int t = 0 ; t <= N ; t ++ ) 
	{
		if ( dp [n][j][t] ) res = min (res,t) ;
	}
	cout << res ; 
}
int main ( ) 
{
	ios_base :: sync_with_stdio (0) ; 
	cin.tie(0) ; cout.tie(0) ;
//	rf () ; 
	cin >> n >> A >> B ; 
	for ( int i = 1 ; i <= n ; i ++ ) cin >> a [i] ; 
	for ( int i = 1 ; i <= n ; i ++ ) sum [i] = sum [i-1] + a[i] ; 
	
	if ( n <= 20 ) sub1 () ; 
	else if ( n <= 50 && *max_element (a+1,a+n+1) <= 20 && A == 1 ) sub2 () ; 
}




//-std=c++11

Compilation message

sculpture.cpp: In function 'void rf()':
sculpture.cpp:31:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   31 |  freopen ("bai1.inp","r",stdin) ;
      |  ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~

Subtask #1
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2476 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 2 ms 2396 KB Output is correct
7 Correct 8 ms 2396 KB Output is correct
8 Correct 68 ms 2508 KB Output is correct
9 Correct 69 ms 2640 KB Output is correct
10 Correct 68 ms 2396 KB Output is correct
11 Correct 67 ms 2496 KB Output is correct
12 Correct 67 ms 2396 KB Output is correct
13 Correct 67 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Incorrect 1 ms 2396 KB Output isn't correct
16 Halted 0 ms 0 KB -

Subtask #2
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 2 ms 2396 KB Output is correct
7 Correct 8 ms 2512 KB Output is correct
8 Correct 69 ms 2396 KB Output is correct
9 Correct 70 ms 2492 KB Output is correct
10 Correct 68 ms 2396 KB Output is correct
11 Correct 73 ms 2488 KB Output is correct
12 Correct 68 ms 2396 KB Output is correct
13 Correct 67 ms 2392 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Incorrect 1 ms 2396 KB Output isn't correct
16 Halted 0 ms 0 KB -

Subtask #3
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2596 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 1 ms 2508 KB Output is correct
6 Correct 3 ms 2392 KB Output is correct
7 Correct 8 ms 2396 KB Output is correct
8 Correct 68 ms 2488 KB Output is correct
9 Correct 69 ms 2396 KB Output is correct
10 Correct 68 ms 2392 KB Output is correct
11 Correct 68 ms 2396 KB Output is correct
12 Correct 67 ms 2396 KB Output is correct
13 Correct 67 ms 2396 KB Output is correct
14 Correct 1 ms 3672 KB Output is correct
15 Correct 1 ms 3676 KB Output is correct
16 Correct 1 ms 3676 KB Output is correct
17 Correct 1 ms 3788 KB Output is correct
18 Correct 2 ms 3676 KB Output is correct
19 Correct 2 ms 3676 KB Output is correct
20 Correct 1 ms 3676 KB Output is correct
21 Correct 2 ms 3676 KB Output is correct
22 Correct 2 ms 3672 KB Output is correct
23 Correct 2 ms 3672 KB Output is correct
24 Incorrect 0 ms 2648 KB Output isn't correct
25 Halted 0 ms 0 KB -

Subtask #4
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 2 ms 2396 KB Output is correct
7 Correct 8 ms 2520 KB Output is correct
8 Correct 68 ms 2396 KB Output is correct
9 Correct 70 ms 2396 KB Output is correct
10 Correct 68 ms 2396 KB Output is correct
11 Correct 68 ms 2396 KB Output is correct
12 Correct 68 ms 2492 KB Output is correct
13 Correct 68 ms 2392 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Incorrect 1 ms 2520 KB Output isn't correct
16 Halted 0 ms 0 KB -

Subtask #5
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2392 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 2 ms 2396 KB Output is correct
7 Correct 8 ms 2396 KB Output is correct
8 Correct 67 ms 2396 KB Output is correct
9 Correct 67 ms 2396 KB Output is correct
10 Correct 67 ms 2392 KB Output is correct
11 Correct 68 ms 2392 KB Output is correct
12 Correct 68 ms 2392 KB Output is correct
13 Correct 67 ms 2492 KB Output is correct
14 Incorrect 1 ms 2392 KB Output isn't correct
15 Halted 0 ms 0 KB -