oj.uz

Submission #1102258

# Submission time Handle Problem Language Result Execution time Memory
1102258 2024-10-18T01:11:41 Z nhphuc Nile (IOI24_nile) C++17
100 / 100
 132 ms 22220 KB 
#include <bits/stdc++.h>

using namespace std;

#define int long long

void init (vector<int32_t> &a, vector<pair<int, int>> &b){
	vector<int32_t> tmp = a;
	for (int i = 0; i < b.size(); ++i)
		a[i] = tmp[b[i].second];
	return;
}

bool cmp (array<int, 3> a, array<int, 3> b){
	for (int i = 0; i < 3; ++i)
		if (a[i] < b[i])
			return true;
		else
			if (a[i] > b[i])
				return false;
	return true;
}

const int inf = 1e12;

vector<int> calculate_costs (
	vector<int32_t> w, vector<int32_t> a, 
	vector<int32_t> b, vector<int32_t> e
){
	int n = a.size(), q = e.size();
	set<int> st;
	vector<int> ans(q), c(n), sz(n); 
	vector<pair<int, int>> d(q), x(n);
	vector<array<int, 3>> events, mn(n, {inf, inf, inf});
	for (int i = 0; i < n; ++i)
		x[i] = {w[i], i};
	for (int i = 0; i < q; ++i)
		d[i] = {e[i], i};
	sort(d.begin(), d.end());
	sort(x.begin(), x.end());
	init(a, x);
	init(b, x);
	init(w, x);
	int res = accumulate(b.begin(), b.end(), 0ll), add = 0;
	for (int i = 0; i < n; ++i){
		st.insert(i);
		c[i] = a[i] - b[i];
		sz[i] = 1;
		mn[i][i & 1] = c[i];
		add += c[i];
		if (i + 1 < n)
			events.push_back({w[i + 1] - w[i], i, 0});
		if (i + 2 < n)
			events.push_back({w[i + 2] - w[i], i, 1});
	}
	sort(events.begin(), events.end());
	auto fi = [&] (int i){
		return min(mn[i][i & 1], mn[i][2]) * (sz[i] & 1);
	};
	auto u1 = [&] (int i){
		int j = *prev(st.upper_bound(i));
		int k = i + 1;
		add -= (fi(j) + fi(k));
		st.erase(k);
		sz[j] += sz[k];
		for (int l = 0; l < 3; ++l)
			mn[j][l] = min(mn[j][l], mn[k][l]);
		add += fi(j);
	};
	auto u2 = [&] (int i){
		int j = *prev(st.upper_bound(i));
		add -= fi(j);
		mn[j][2] = min(mn[j][2], c[i + 1]);
		add += fi(j);
	};
	int j = 0;
	for (auto [x, y] : d){
		while (j < events.size() && events[j][0] <= x){
			int i = events[j][1];
			if (events[j][2])
				u2(i);
			else
				u1(i);
            ++j;
		}
		ans[y] = res + add;
	}
	return ans;
}

Compilation message

nile.cpp: In function 'void init(std::vector<int>&, std::vector<std::pair<long long int, long long int> >&)':
nile.cpp:9:20: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    9 |  for (int i = 0; i < b.size(); ++i)
      |                  ~~^~~~~~~~~~
nile.cpp: In function 'std::vector<long long int> calculate_costs(std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
nile.cpp:78:12: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::array<long long int, 3> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   78 |   while (j < events.size() && events[j][0] <= x){
      |          ~~^~~~~~~~~~~~~~~

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 592 KB Output is correct
2 Correct 1 ms 592 KB Output is correct
3 Correct 2 ms 592 KB Output is correct
4 Correct 2 ms 760 KB Output is correct
5 Correct 1 ms 592 KB Output is correct
6 Correct 2 ms 592 KB Output is correct

Subtask #2
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 66 ms 18948 KB Output is correct
2 Correct 61 ms 18868 KB Output is correct
3 Correct 60 ms 18892 KB Output is correct
4 Correct 79 ms 18868 KB Output is correct
5 Correct 62 ms 18908 KB Output is correct
6 Correct 61 ms 19120 KB Output is correct

Subtask #3
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 67 ms 19048 KB Output is correct
2 Correct 69 ms 18868 KB Output is correct
3 Correct 92 ms 18868 KB Output is correct
4 Correct 90 ms 19132 KB Output is correct
5 Correct 77 ms 19124 KB Output is correct
6 Correct 99 ms 19124 KB Output is correct

Subtask #4
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 592 KB Output is correct
2 Correct 1 ms 592 KB Output is correct
3 Correct 2 ms 592 KB Output is correct
4 Correct 2 ms 760 KB Output is correct
5 Correct 1 ms 592 KB Output is correct
6 Correct 2 ms 592 KB Output is correct
7 Correct 2 ms 592 KB Output is correct
8 Correct 2 ms 592 KB Output is correct
9 Correct 2 ms 592 KB Output is correct
10 Correct 2 ms 592 KB Output is correct
11 Correct 2 ms 592 KB Output is correct
12 Correct 2 ms 592 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 592 KB Output is correct
2 Correct 1 ms 592 KB Output is correct
3 Correct 2 ms 592 KB Output is correct
4 Correct 2 ms 760 KB Output is correct
5 Correct 1 ms 592 KB Output is correct
6 Correct 2 ms 592 KB Output is correct
7 Correct 66 ms 18948 KB Output is correct
8 Correct 61 ms 18868 KB Output is correct
9 Correct 60 ms 18892 KB Output is correct
10 Correct 79 ms 18868 KB Output is correct
11 Correct 62 ms 18908 KB Output is correct
12 Correct 61 ms 19120 KB Output is correct
13 Correct 67 ms 19048 KB Output is correct
14 Correct 69 ms 18868 KB Output is correct
15 Correct 92 ms 18868 KB Output is correct
16 Correct 90 ms 19132 KB Output is correct
17 Correct 77 ms 19124 KB Output is correct
18 Correct 99 ms 19124 KB Output is correct
19 Correct 2 ms 592 KB Output is correct
20 Correct 2 ms 592 KB Output is correct
21 Correct 2 ms 592 KB Output is correct
22 Correct 2 ms 592 KB Output is correct
23 Correct 2 ms 592 KB Output is correct
24 Correct 2 ms 592 KB Output is correct
25 Correct 68 ms 18868 KB Output is correct
26 Correct 88 ms 19036 KB Output is correct
27 Correct 96 ms 19136 KB Output is correct
28 Correct 99 ms 18872 KB Output is correct
29 Correct 92 ms 19124 KB Output is correct
30 Correct 109 ms 18932 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 67 ms 19048 KB Output is correct
2 Correct 69 ms 18868 KB Output is correct
3 Correct 92 ms 18868 KB Output is correct
4 Correct 90 ms 19132 KB Output is correct
5 Correct 77 ms 19124 KB Output is correct
6 Correct 99 ms 19124 KB Output is correct
7 Correct 87 ms 22008 KB Output is correct
8 Correct 90 ms 22196 KB Output is correct
9 Correct 116 ms 22196 KB Output is correct
10 Correct 115 ms 22204 KB Output is correct
11 Correct 110 ms 22196 KB Output is correct
12 Correct 111 ms 22100 KB Output is correct
13 Correct 124 ms 22064 KB Output is correct
14 Correct 96 ms 22196 KB Output is correct
15 Correct 120 ms 22196 KB Output is correct

Subtask #7
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 592 KB Output is correct
3 Correct 1 ms 592 KB Output is correct
4 Correct 2 ms 592 KB Output is correct
5 Correct 2 ms 760 KB Output is correct
6 Correct 1 ms 592 KB Output is correct
7 Correct 2 ms 592 KB Output is correct
8 Correct 66 ms 18948 KB Output is correct
9 Correct 61 ms 18868 KB Output is correct
10 Correct 60 ms 18892 KB Output is correct
11 Correct 79 ms 18868 KB Output is correct
12 Correct 62 ms 18908 KB Output is correct
13 Correct 61 ms 19120 KB Output is correct
14 Correct 67 ms 19048 KB Output is correct
15 Correct 69 ms 18868 KB Output is correct
16 Correct 92 ms 18868 KB Output is correct
17 Correct 90 ms 19132 KB Output is correct
18 Correct 77 ms 19124 KB Output is correct
19 Correct 99 ms 19124 KB Output is correct
20 Correct 2 ms 592 KB Output is correct
21 Correct 2 ms 592 KB Output is correct
22 Correct 2 ms 592 KB Output is correct
23 Correct 2 ms 592 KB Output is correct
24 Correct 2 ms 592 KB Output is correct
25 Correct 2 ms 592 KB Output is correct
26 Correct 68 ms 18868 KB Output is correct
27 Correct 88 ms 19036 KB Output is correct
28 Correct 96 ms 19136 KB Output is correct
29 Correct 99 ms 18872 KB Output is correct
30 Correct 92 ms 19124 KB Output is correct
31 Correct 109 ms 18932 KB Output is correct
32 Correct 87 ms 22008 KB Output is correct
33 Correct 90 ms 22196 KB Output is correct
34 Correct 116 ms 22196 KB Output is correct
35 Correct 115 ms 22204 KB Output is correct
36 Correct 110 ms 22196 KB Output is correct
37 Correct 111 ms 22100 KB Output is correct
38 Correct 124 ms 22064 KB Output is correct
39 Correct 96 ms 22196 KB Output is correct
40 Correct 120 ms 22196 KB Output is correct
41 Correct 88 ms 22072 KB Output is correct
42 Correct 103 ms 22196 KB Output is correct
43 Correct 118 ms 22196 KB Output is correct
44 Correct 126 ms 22196 KB Output is correct
45 Correct 132 ms 22196 KB Output is correct
46 Correct 130 ms 22196 KB Output is correct
47 Correct 122 ms 22196 KB Output is correct
48 Correct 105 ms 22196 KB Output is correct
49 Correct 131 ms 22220 KB Output is correct