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Submission #47606

# Submission time Handle Problem Language Result Execution time Memory
47606 2018-05-05T15:02:18 Z RezwanArefin01 Boxes with souvenirs (IOI15_boxes) C++17
20 / 100
 33 ms 16528 KB 
#include "boxes.h"
#include <bits/stdc++.h> 
using namespace std;

typedef long long ll; 

ll dp[1010][1010][2];
vector<int> a; 
int N, K, L; 

ll solve(int l, int r, int side) {
	if(l == r - 1) {
		if(!side) return min(a[l], L - a[l]);
		else return min(a[r], L - a[r]); 
	}
	ll &ret = dp[l][r][side];
	if(ret != -1) return ret; 
	if(side == 0) {
		ret = solve(l + 1, r, 0) + a[l + 1] - a[l]; 
		ret = min(ret, solve(l, r - 1, 1) + a[l] + L - a[r - 1]); 
	} else {
		ret = solve(l, r - 1, 1) + a[r] - a[r - 1];
		ret = min(ret, solve(l + 1, r, 0) + a[l + 1] + L - a[r]);  
	}
	return ret; 
}
ll delivery(int n, int k, int l, int p[]) {
	N = n, K = k, L = l;
	if(K == 1 || N == 1) {
		ll tot = 0; 
		for(int i = 0; i < N; i++) 
			tot += 2 * min(p[i], L - p[i]); 
		return tot; 
	}
	if(N == K) {
		memset(dp, -1, sizeof dp);
		a.push_back(0); 
		for(int i = 0; i < N; i++) 
			a.push_back(p[i]);
		a.push_back(L);

		return solve(0, N + 1, 0);  
	}
}

Compilation message

boxes.cpp: In function 'll delivery(int, int, int, int*)':
boxes.cpp:44:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 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 256 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 256 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 16432 KB Output is correct
2 Correct 29 ms 16376 KB Output is correct
3 Correct 28 ms 16348 KB Output is correct
4 Correct 26 ms 16348 KB Output is correct
5 Correct 27 ms 16528 KB Output is correct
6 Correct 24 ms 16376 KB Output is correct
7 Correct 33 ms 16376 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 292 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 256 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 256 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 256 KB Output is correct
8 Correct 25 ms 16432 KB Output is correct
9 Correct 29 ms 16376 KB Output is correct
10 Correct 28 ms 16348 KB Output is correct
11 Correct 26 ms 16348 KB Output is correct
12 Correct 27 ms 16528 KB Output is correct
13 Correct 24 ms 16376 KB Output is correct
14 Correct 33 ms 16376 KB Output is correct
15 Incorrect 2 ms 292 KB Output isn't correct
16 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 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 256 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 256 KB Output is correct
8 Correct 25 ms 16432 KB Output is correct
9 Correct 29 ms 16376 KB Output is correct
10 Correct 28 ms 16348 KB Output is correct
11 Correct 26 ms 16348 KB Output is correct
12 Correct 27 ms 16528 KB Output is correct
13 Correct 24 ms 16376 KB Output is correct
14 Correct 33 ms 16376 KB Output is correct
15 Incorrect 2 ms 292 KB Output isn't correct
16 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 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 256 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 256 KB Output is correct
8 Correct 25 ms 16432 KB Output is correct
9 Correct 29 ms 16376 KB Output is correct
10 Correct 28 ms 16348 KB Output is correct
11 Correct 26 ms 16348 KB Output is correct
12 Correct 27 ms 16528 KB Output is correct
13 Correct 24 ms 16376 KB Output is correct
14 Correct 33 ms 16376 KB Output is correct
15 Incorrect 2 ms 292 KB Output isn't correct
16 Halted 0 ms 0 KB -