oj.uz

Submission #372232

# Submission time Handle Problem Language Result Execution time Memory
372232 2021-02-27T09:56:58 Z 8e7 Swap (BOI16_swap) C++14
68 / 100
 1000 ms 202732 KB 
//Challenge: Accepted
#include <iostream>
#include <algorithm>
#include <utility>
#include <vector>
#include <unordered_map>
#define ll long long
#define maxn 200005
#define pii pair<int, int>
#define ff first
#define ss second
#define io ios_base::sync_with_stdio(0);cin.tie(0);
using namespace std;
int a[maxn], n;

void merge(vector<int> v1, vector<int> v2, vector<int> & ret) {
	for (int i = 0;(1<<(i + 1)) - 1 <= v2.size();i++) {
		for (int j = (1<<i);j < (1<<(i + 1));j++) ret.push_back(v1[j - 1]);
		for (int j = (1<<i);j < (1<<(i + 1));j++) ret.push_back(v2[j - 1]);
		if ((1<<(i + 2)) - 1 > v2.size()) {
			for (int j = (1<<(i + 1)) - 1;j < v1.size();j++) ret.push_back(v1[j]);
			for (int j = (1<<(i + 1)) - 1;j < v2.size();j++) ret.push_back(v2[j]);
			return;
		}
	}
}
unordered_map<int, vector<int> > ans[maxn];
vector<int> solve(int v, int x) {
	if (ans[v][x].size()) {
		return ans[v][x];
	}
	vector<int> ret;
	ret.push_back(x);
	bool lef = 2 * v <= n, rig = 2 * v + 1 <= n;
	if (!lef && !rig) {
		return ret;
	} else if (!rig) {
		ret.push_back(a[2 * v]);
		if (a[2 * v] < x) swap(ret[0], ret[1]);
		return ret;
	} else {
		int l = a[2 * v], r = a[2 * v + 1];
		if (x < l && x < r) {
			merge(solve(v * 2, l), solve(v * 2 + 1, r), ret);
		} else if (l < x && l < r) {
			ret[0] = l;
			merge(solve(v * 2, x), solve(v * 2 + 1, r), ret);
		} else {
			ret[0] = r;
			vector<int> v1, v2;
			merge(solve(v * 2, l), solve(v * 2 + 1, x), v1);
			merge(solve(v * 2, x), solve(v * 2 + 1, l), v2);
			for (int i = 0;i < v1.size();i++) {
				if (v1[i] < v2[i]) {
					ret.insert(ret.end(), v1.begin(), v1.end());
					break;
				} else if (v1[i] > v2[i]) {
					ret.insert(ret.end(), v2.begin(), v2.end());
					break;
				}
			}
		}
		ans[v][x] = ret;
		return ret;
	}
}
int main() {
	io
	cin >> n;
	for (int i = 1;i <= n;i++) cin >> a[i];
	vector<int> ans = solve(1, a[1]);
	for (int i:ans) cout << i << " ";
	cout << "\n";
}
/*
5
3 4 2 5 1
 */

Compilation message

swap.cpp: In function 'void merge(std::vector<int>, std::vector<int>, std::vector<int>&)':
swap.cpp:17:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |  for (int i = 0;(1<<(i + 1)) - 1 <= v2.size();i++) {
      |                 ~~~~~~~~~~~~~~~~~^~~~~~~~~~~~
swap.cpp:20:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   20 |   if ((1<<(i + 2)) - 1 > v2.size()) {
      |       ~~~~~~~~~~~~~~~~~^~~~~~~~~~~
swap.cpp:21:36: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 |    for (int j = (1<<(i + 1)) - 1;j < v1.size();j++) ret.push_back(v1[j]);
      |                                  ~~^~~~~~~~~~~
swap.cpp:22:36: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |    for (int j = (1<<(i + 1)) - 1;j < v2.size();j++) ret.push_back(v2[j]);
      |                                  ~~^~~~~~~~~~~
swap.cpp: In function 'std::vector<int> solve(int, int)':
swap.cpp:53:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   53 |    for (int i = 0;i < v1.size();i++) {
      |                   ~~^~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 11244 KB Output is correct
2 Correct 8 ms 11244 KB Output is correct
3 Correct 8 ms 11244 KB Output is correct
4 Correct 9 ms 11404 KB Output is correct
5 Correct 8 ms 11244 KB Output is correct

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 11244 KB Output is correct
2 Correct 8 ms 11244 KB Output is correct
3 Correct 8 ms 11244 KB Output is correct
4 Correct 9 ms 11404 KB Output is correct
5 Correct 8 ms 11244 KB Output is correct
6 Correct 8 ms 11244 KB Output is correct
7 Correct 7 ms 11244 KB Output is correct
8 Correct 8 ms 11244 KB Output is correct
9 Correct 10 ms 11372 KB Output is correct
10 Correct 10 ms 11244 KB Output is correct

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 11244 KB Output is correct
2 Correct 8 ms 11244 KB Output is correct
3 Correct 8 ms 11244 KB Output is correct
4 Correct 9 ms 11404 KB Output is correct
5 Correct 8 ms 11244 KB Output is correct
6 Correct 8 ms 11244 KB Output is correct
7 Correct 7 ms 11244 KB Output is correct
8 Correct 8 ms 11244 KB Output is correct
9 Correct 10 ms 11372 KB Output is correct
10 Correct 10 ms 11244 KB Output is correct
11 Correct 10 ms 11500 KB Output is correct
12 Correct 9 ms 11628 KB Output is correct
13 Correct 9 ms 11500 KB Output is correct
14 Correct 14 ms 12012 KB Output is correct
15 Correct 16 ms 12012 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 11244 KB Output is correct
2 Correct 8 ms 11244 KB Output is correct
3 Correct 8 ms 11244 KB Output is correct
4 Correct 9 ms 11404 KB Output is correct
5 Correct 8 ms 11244 KB Output is correct
6 Correct 8 ms 11244 KB Output is correct
7 Correct 7 ms 11244 KB Output is correct
8 Correct 8 ms 11244 KB Output is correct
9 Correct 10 ms 11372 KB Output is correct
10 Correct 10 ms 11244 KB Output is correct
11 Correct 10 ms 11500 KB Output is correct
12 Correct 9 ms 11628 KB Output is correct
13 Correct 9 ms 11500 KB Output is correct
14 Correct 14 ms 12012 KB Output is correct
15 Correct 16 ms 12012 KB Output is correct
16 Correct 94 ms 26332 KB Output is correct
17 Correct 107 ms 26080 KB Output is correct
18 Correct 93 ms 26660 KB Output is correct
19 Correct 582 ms 82520 KB Output is correct
20 Correct 612 ms 81924 KB Output is correct

Subtask #5
0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 11244 KB Output is correct
2 Correct 8 ms 11244 KB Output is correct
3 Correct 8 ms 11244 KB Output is correct
4 Correct 9 ms 11404 KB Output is correct
5 Correct 8 ms 11244 KB Output is correct
6 Correct 8 ms 11244 KB Output is correct
7 Correct 7 ms 11244 KB Output is correct
8 Correct 8 ms 11244 KB Output is correct
9 Correct 10 ms 11372 KB Output is correct
10 Correct 10 ms 11244 KB Output is correct
11 Correct 10 ms 11500 KB Output is correct
12 Correct 9 ms 11628 KB Output is correct
13 Correct 9 ms 11500 KB Output is correct
14 Correct 14 ms 12012 KB Output is correct
15 Correct 16 ms 12012 KB Output is correct
16 Correct 94 ms 26332 KB Output is correct
17 Correct 107 ms 26080 KB Output is correct
18 Correct 93 ms 26660 KB Output is correct
19 Correct 582 ms 82520 KB Output is correct
20 Correct 612 ms 81924 KB Output is correct
21 Correct 383 ms 75904 KB Output is correct
22 Correct 399 ms 76308 KB Output is correct
23 Correct 379 ms 76888 KB Output is correct
24 Execution timed out 1102 ms 202732 KB Time limit exceeded
25 Halted 0 ms 0 KB -