oj.uz

답안 #372227

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
372227 2021-02-27T09:47:27 Z 8e7 Swap (BOI16_swap) C++14
48 / 100
 1000 ms 1644 KB 
//Challenge: Accepted
#include <iostream>
#include <algorithm>
#include <utility>
#include <vector>
#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;
		}
	}
}
vector<int> solve(int v, int x) {
	vector<int> ret;
	ret.push_back(x);
	bool lef = 2 * v <= n, rig = 2 * v + 1 <= n;
	if (!lef && !rig) {
		//cout << v << " " << x << endl;
		//cout << ret[0] << "\n";
		return ret;
	} else if (!rig) {
		ret.push_back(a[2 * v]);
		if (a[2 * v] < x) swap(ret[0], ret[1]);
		//cout << v << " " << x << endl;
		//cout << ret[0] << " " << ret[1] << "\n";
		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;
				}
			}
		}
		//cout << v << " " << x << endl;
		//for (int i:ret) cout << i << " ";
		//cout << "\n";
		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:16:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   16 |  for (int i = 0;(1<<(i + 1)) - 1 <= v2.size();i++) {
      |                 ~~~~~~~~~~~~~~~~~^~~~~~~~~~~~
swap.cpp:19:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |   if ((1<<(i + 2)) - 1 > v2.size()) {
      |       ~~~~~~~~~~~~~~~~~^~~~~~~~~~~
swap.cpp:20:36: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   20 |    for (int j = (1<<(i + 1)) - 1;j < v1.size();j++) ret.push_back(v1[j]);
      |                                  ~~^~~~~~~~~~~
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 < v2.size();j++) ret.push_back(v2[j]);
      |                                  ~~^~~~~~~~~~~
swap.cpp: In function 'std::vector<int> solve(int, int)':
swap.cpp:52:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   52 |    for (int i = 0;i < v1.size();i++) {
      |                   ~~^~~~~~~~~~~

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 2 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct

Subtask #2
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 2 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 396 KB Output is correct

Subtask #3
27.0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 2 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 396 KB Output is correct
11 Correct 2 ms 364 KB Output is correct
12 Correct 5 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 28 ms 492 KB Output is correct
15 Correct 27 ms 364 KB Output is correct

Subtask #4
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 2 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 396 KB Output is correct
11 Correct 2 ms 364 KB Output is correct
12 Correct 5 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 28 ms 492 KB Output is correct
15 Correct 27 ms 364 KB Output is correct
16 Correct 390 ms 1612 KB Output is correct
17 Correct 299 ms 1644 KB Output is correct
18 Correct 425 ms 1628 KB Output is correct
19 Execution timed out 1081 ms 1132 KB Time limit exceeded
20 Halted 0 ms 0 KB -

Subtask #5
0 / 32.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 2 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 396 KB Output is correct
11 Correct 2 ms 364 KB Output is correct
12 Correct 5 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 28 ms 492 KB Output is correct
15 Correct 27 ms 364 KB Output is correct
16 Correct 390 ms 1612 KB Output is correct
17 Correct 299 ms 1644 KB Output is correct
18 Correct 425 ms 1628 KB Output is correct
19 Execution timed out 1081 ms 1132 KB Time limit exceeded
20 Halted 0 ms 0 KB -