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Submission #127994

# Submission time Handle Problem Language Result Execution time Memory
127994 2019-07-10T10:03:29 Z MoNsTeR_CuBe Boxes with souvenirs (IOI15_boxes) C++17
35 / 100
 182 ms 504 KB 
#include <bits/stdc++.h>
#include "boxes.h"
using namespace std;

long long delivery(int N, int K, int L, int p[]) {
	#define int long long 
	
	if(N <= 10){
		
		vector< int > v(N);
		for(int i = 0; i < N; i++){
			v[i] = p[i];
		}
		
		int ans = numeric_limits<int>::max();
		
		do{
			
			/*for(int a : v) cout << a << ' ';
			cout << endl;*/
			
			int last = 0;
			int curr = K;
			
			int cost = 0;
			
			for(int i = 0; i < (int) v.size(); i++){
				if(!curr){
					curr = K;
					cost += min(last, abs(L-last));
					last = 0;
				}
				if(abs(v[i]-last) < min(abs(L-v[i]), v[i]) + min(abs(L-last), last)){
					curr--;
					cost += abs(v[i]-last);
				}else{
					curr = K-1;
					cost += min(abs(L-v[i]), v[i]) + min(abs(L-last), last);
				}
				
				//cout << "STEP " << cost << endl;
				
				last = v[i];
			}
			
			ans = min(ans, cost + min(last, L-last));
			
			//cout << "COST " << cost + min(last, L-last) << endl;
			
		}while(next_permutation(v.begin(), v.end()));
		
		return ans;
	}
	
	vector< int > left;
	
	int curr = K;
	
	int last = 0;
	
	int currCost = 0;
	
	for(int i = 0; i < N; i++){
		left.push_back(p[i]-last + currCost);
		curr--;
		if(curr == 0){
			curr = K;
			currCost += 2*p[i];
		}
		currCost += p[i]-last;
		last = p[i];
	}
	//left.push_back(L-last);
	/*for(int a : left) cout << a << ' ';
	cout << endl;*/
	
	vector< int > right;
	
	curr = K;
	last = L;
	currCost = 0;
	
	for(int i = N-1; i >= 0; i--){
		right.push_back(last - p[i] + currCost);
		curr--;
		if(curr == 0){
			curr = K;
			currCost += 2*(L-p[i]);
		}
		currCost += last - p[i];
		last = p[i];
	}
	//right.push_back(last + currCost);
	/*for(int a : right) cout << a << ' ';
	cout << endl;*/
	
	//reverse(right.begin(), right.end());
	
	int ans = min(right[N - 1] + min(p[0], L-p[0]), left[N-1] + min(L-p[N-1], p[N-1]));
	
	for(int i = 0; i < N; i++){
		if(N - 2 - i < 0) continue;
		//cout << "INDEX " << i << ' ' << left[i] << ' ' << right[N-2-i] << ' ' << min(p[i], L-p[i]) << ' ' << min(p[i+1], L-p[i+1]) << endl;
		//cout << p[N-2-i] << ' ' << L-p[N-2-i] << endl;
		ans = min(ans, left[i] + right[N - 2 - i] + min(p[i],L-p[i]) + min(p[i+1],L-p[i+1]));
	}
	
	return ans;
	#undef int
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 380 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
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 504 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 380 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 128 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 182 ms 376 KB Output is correct
6 Correct 168 ms 380 KB Output is correct
7 Correct 174 ms 376 KB Output is correct
8 Correct 172 ms 256 KB Output is correct

Subtask #4
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 380 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 Correct 2 ms 504 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 380 KB Output is correct
15 Correct 2 ms 128 KB Output is correct
16 Correct 2 ms 256 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 182 ms 376 KB Output is correct
20 Correct 168 ms 380 KB Output is correct
21 Correct 174 ms 376 KB Output is correct
22 Correct 172 ms 256 KB Output is correct
23 Correct 3 ms 376 KB Output is correct
24 Incorrect 2 ms 376 KB Output isn't correct
25 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 380 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 Correct 2 ms 504 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 380 KB Output is correct
15 Correct 2 ms 128 KB Output is correct
16 Correct 2 ms 256 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 182 ms 376 KB Output is correct
20 Correct 168 ms 380 KB Output is correct
21 Correct 174 ms 376 KB Output is correct
22 Correct 172 ms 256 KB Output is correct
23 Correct 3 ms 376 KB Output is correct
24 Incorrect 2 ms 376 KB Output isn't correct
25 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 380 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 Correct 2 ms 504 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 380 KB Output is correct
15 Correct 2 ms 128 KB Output is correct
16 Correct 2 ms 256 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 182 ms 376 KB Output is correct
20 Correct 168 ms 380 KB Output is correct
21 Correct 174 ms 376 KB Output is correct
22 Correct 172 ms 256 KB Output is correct
23 Correct 3 ms 376 KB Output is correct
24 Incorrect 2 ms 376 KB Output isn't correct
25 Halted 0 ms 0 KB -