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Submission #927951

# Submission time Handle Problem Language Result Execution time Memory
927951 2024-02-15T14:31:30 Z TAhmed33 Boxes with souvenirs (IOI15_boxes) C++
100 / 100
 1526 ms 326516 KB 
#include <bits/stdc++.h>
using namespace std;
#pragma GCC optimize ("trapv")
typedef long long ll;
struct Mono {
	stack <pair <ll, ll>> s1, s2;
	int sze = 0;
	ll get_min () {
		if (s1.empty() || s2.empty()) {
			return s1.empty() ? s2.top().second : s1.top().second;
		} else {
			return min(s1.top().second, s2.top().second);
		}
	}
	void insert (ll x) {
		ll mn = s1.empty() ? x : min(x, s1.top().second);
		s1.push({x, mn});
		sze++;
	}
	void remove () {
		if (s2.empty()) while (!s1.empty()) {
			ll x = s1.top().first; s1.pop();
			ll mn = (s2.empty() ? x : min(x, s2.top().second));
			s2.push({x, mn});
		}
		sze--;
		s2.pop();
	}
};
Mono cur1, cur2;
ll n, k, l;
ll arr[10000001];
ll dp[10000001];
inline ll mindist (int a, int b) {
	return min({2 * arr[b], 2 * (l - arr[a]), l});
}
long long delivery (int a, int b, int c, int pp[]) {
	n = a; k = b; l = c;
	for (int i = 0; i < n; i++) {
		arr[i + 1] = pp[i];
	}
	dp[n + 1] = 0;
	cur1.insert(0);
	cur2.insert(2 * arr[n]);
	for (int i = n; i >= 1; i--) {
		if (cur1.sze > k) {
			cur1.remove();
			cur2.remove();
		}
		dp[i] = min({
			cur1.get_min() + l,
			cur1.get_min() + 2 * (l - arr[i]),
			cur2.get_min()
		});
		if (i == 1) break;
		cur1.insert(dp[i]);
		cur2.insert(dp[i] + 2 * arr[i - 1]);
	}
	return dp[1];
}

Compilation message

boxes.cpp: In function 'long long int delivery(int, int, int, int*)':
boxes.cpp:45:15: warning: conversion from 'll' {aka 'long long int'} to 'int' may change value [-Wconversion]
   45 |  for (int i = n; i >= 1; i--) {
      |               ^

Subtask #1
10.0 / 10.0

# 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 1 ms 2396 KB Output is correct
5 Correct 2 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 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 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct

Subtask #3
15.0 / 15.0

# 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 0 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 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct

Subtask #4
15.0 / 15.0

# 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 1 ms 2396 KB Output is correct
5 Correct 2 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2392 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 0 ms 2396 KB Output is correct
18 Correct 0 ms 2396 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
21 Correct 1 ms 2396 KB Output is correct
22 Correct 0 ms 2396 KB Output is correct
23 Correct 2 ms 2396 KB Output is correct
24 Correct 2 ms 2396 KB Output is correct
25 Correct 1 ms 2396 KB Output is correct
26 Correct 1 ms 2396 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct
28 Correct 1 ms 2396 KB Output is correct
29 Correct 1 ms 2396 KB Output is correct
30 Correct 1 ms 2396 KB Output is correct
31 Correct 1 ms 2396 KB Output is correct
32 Correct 2 ms 2396 KB Output is correct

Subtask #5
20.0 / 20.0

# 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 1 ms 2396 KB Output is correct
5 Correct 2 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2392 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 0 ms 2396 KB Output is correct
18 Correct 0 ms 2396 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
21 Correct 1 ms 2396 KB Output is correct
22 Correct 0 ms 2396 KB Output is correct
23 Correct 2 ms 2396 KB Output is correct
24 Correct 2 ms 2396 KB Output is correct
25 Correct 1 ms 2396 KB Output is correct
26 Correct 1 ms 2396 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct
28 Correct 1 ms 2396 KB Output is correct
29 Correct 1 ms 2396 KB Output is correct
30 Correct 1 ms 2396 KB Output is correct
31 Correct 1 ms 2396 KB Output is correct
32 Correct 2 ms 2396 KB Output is correct
33 Correct 140 ms 30548 KB Output is correct
34 Correct 108 ms 22864 KB Output is correct
35 Correct 102 ms 23380 KB Output is correct
36 Correct 135 ms 30792 KB Output is correct
37 Correct 136 ms 30544 KB Output is correct
38 Correct 134 ms 30548 KB Output is correct
39 Correct 130 ms 29232 KB Output is correct
40 Correct 113 ms 24404 KB Output is correct
41 Correct 136 ms 30544 KB Output is correct
42 Correct 119 ms 25180 KB Output is correct

Subtask #6
30.0 / 30.0

# 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 1 ms 2396 KB Output is correct
5 Correct 2 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2392 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 0 ms 2396 KB Output is correct
18 Correct 0 ms 2396 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
21 Correct 1 ms 2396 KB Output is correct
22 Correct 0 ms 2396 KB Output is correct
23 Correct 2 ms 2396 KB Output is correct
24 Correct 2 ms 2396 KB Output is correct
25 Correct 1 ms 2396 KB Output is correct
26 Correct 1 ms 2396 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct
28 Correct 1 ms 2396 KB Output is correct
29 Correct 1 ms 2396 KB Output is correct
30 Correct 1 ms 2396 KB Output is correct
31 Correct 1 ms 2396 KB Output is correct
32 Correct 2 ms 2396 KB Output is correct
33 Correct 140 ms 30548 KB Output is correct
34 Correct 108 ms 22864 KB Output is correct
35 Correct 102 ms 23380 KB Output is correct
36 Correct 135 ms 30792 KB Output is correct
37 Correct 136 ms 30544 KB Output is correct
38 Correct 134 ms 30548 KB Output is correct
39 Correct 130 ms 29232 KB Output is correct
40 Correct 113 ms 24404 KB Output is correct
41 Correct 136 ms 30544 KB Output is correct
42 Correct 119 ms 25180 KB Output is correct
43 Correct 1526 ms 326516 KB Output is correct
44 Correct 1163 ms 232436 KB Output is correct
45 Correct 1008 ms 223316 KB Output is correct
46 Correct 1447 ms 310632 KB Output is correct
47 Correct 1345 ms 300584 KB Output is correct
48 Correct 1350 ms 293612 KB Output is correct
49 Correct 1436 ms 311696 KB Output is correct
50 Correct 1225 ms 249680 KB Output is correct
51 Correct 1368 ms 303708 KB Output is correct
52 Correct 1186 ms 248924 KB Output is correct