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Submission #129175

# Submission time Handle Problem Language Result Execution time Memory
129175 2019-07-11T19:13:33 Z joseacaz Boxes with souvenirs (IOI15_boxes) C++17
10 / 100
 4 ms 380 KB 
#include "boxes.h"
#include <bits/stdc++.h>
#define MAXN 1000006
#define INF (1LL << 62LL)

using namespace std;
typedef long long ll;

int N, K, L;
ll DP[MAXN], pre[MAXN];
vector < int > P;

ll cost ( int i, int j )
{
	return 2 * min ( pre[j], pre[N + 1] - pre[i] );
}

ll delivery ( int _n, int _k, int _l, int _p[] )
{
	swap ( N, _n );
	swap ( K, _k );
	swap ( L, _l );
	P.push_back ( 0 );
	for ( int i = 0; i < N; i++ )
		P.push_back ( _p[i] );
	P.push_back ( L );
	
	for ( int i = 1; i <= N + 1; i++ )
		pre[i] = pre[i - 1] + (P[i] - P[i - 1]);
	
	for ( int i = N; i >= 1; i-- )
	{
		DP[i] = INF;
		for ( int k = 1; k <= K; k++ )
			if ( i + k <= N + 1 )
				DP[i] = min ( DP[i], cost ( i, i + k - 1 ) + DP[i + k] );
	}

	return DP[1];
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 380 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 4 ms 376 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 256 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 380 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Incorrect 4 ms 376 KB Output isn't correct
9 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 380 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Incorrect 4 ms 376 KB Output isn't correct
9 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 380 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Incorrect 4 ms 376 KB Output isn't correct
9 Halted 0 ms 0 KB -