이진 검색 트리 
https://www.acmicpc.net/problem/5639
| 시간 제한 | 메모리 제한 | 제출 | 정답 | 맞힌 사람 | 정답 비율 |
|---|---|---|---|---|---|
| 1 초 | 256 MB | 35442 | 13888 | 9821 | 38.260% |
문제
이진 검색 트리는 다음과 같은 세 가지 조건을 만족하는 이진 트리이다.
- 노드의 왼쪽 서브트리에 있는 모든 노드의 키는 노드의 키보다 작다.
- 노드의 오른쪽 서브트리에 있는 모든 노드의 키는 노드의 키보다 크다.
- 왼쪽, 오른쪽 서브트리도 이진 검색 트리이다.
전위 순회 (루트-왼쪽-오른쪽)은 루트를 방문하고, 왼쪽 서브트리, 오른쪽 서브 트리를 순서대로 방문하면서 노드의 키를 출력한다.
후위 순회 (왼쪽-오른쪽-루트)는 왼쪽 서브트리, 오른쪽 서브트리, 루트 노드 순서대로 키를 출력한다.
예를 들어, 위의 이진 검색 트리의 전위 순회 결과는 50 30 24 5 28 45 98 52 60 이고, 후위 순회 결과는 5 28 24 45 30 60 52 98 50 이다.
이진 검색 트리를 전위 순회한 결과가 주어졌을 때, 이 트리를 후위 순회한 결과를 구하는 프로그램을 작성하시오.
입력
트리를 전위 순회한 결과가 주어진다.
노드에 들어있는 키의 값은 106보다 작은 양의 정수이다.
모든 값은 한 줄에 하나씩 주어지며, 노드의 수는 10,000개 이하이다.
같은 키를 가지는 노드는 없다.
출력
입력으로 주어진 이진 검색 트리를 후위 순회한 결과를 한 줄에 하나씩 출력한다.
예제 입력 1
50 30 24 5 28 45 98 52 60
예제 출력 1
5 28 24 45 30 60 52 98 50
출처
ICPC > Regionals > Asia Pacific > Thailand > 2011 ACM-ICPC Asia Phuket Regional Programming Contest B번
- 문제를 번역한 사람: baekjoon
알고리즘 분류
통과된 코드
#include <iostream>
using namespace std;
struct BinaryNode
{
int _Num;
BinaryNode* _Left;
BinaryNode* _Right;
BinaryNode(int num)
: _Num(num), _Left(nullptr), _Right(nullptr)
{}
void ArrayBinaryNode(int _n)
{
if (_Num > _n) {
if (_Left == nullptr) _Left = new BinaryNode(_n);
else _Left->ArrayBinaryNode(_n);
}
else {
if (_Right == nullptr) _Right = new BinaryNode(_n);
else _Right->ArrayBinaryNode(_n);
}
}
};
void PostorderTraverse(BinaryNode& CurrentNode)
{
if (CurrentNode._Left != nullptr) PostorderTraverse(*CurrentNode._Left);
if (CurrentNode._Right != nullptr) PostorderTraverse(*CurrentNode._Right);
cout << CurrentNode._Num << "\n";
}
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cout.tie(NULL);
int _N;
cin >> _N;
BinaryNode _RootNode(_N);
while (true) {
cin >> _N;
if (cin.eof() == true)
break;
_RootNode.ArrayBinaryNode(_N);
}
PostorderTraverse(_RootNode);
return 0;
}
![Programmers 42888 오픈채팅방 [2019 KAKAO BLIND RECRUITMENT]](https://lycos7560.com/wp-content/uploads/2023/03/programmers.jpg)
![백준 14442번 (벽 부수고 이동하기 2, C++) [BAEKJOON]](https://lycos7560.com/wp-content/uploads/boj-og.png)
![백준 10823번 (더하기 2, C++) [BAEKJOON]](https://lycos7560.com/wp-content/uploads/boj-og-1.png)
https://www.demilked.com/author/terlysmyxe/
Hey all! I’ve been experimenting with cinnamon roll recipes lately and can’t believe how easy it is to make them at home. I always thought it was this complicated process, but once you get the dough right, the rest is a breeze. I’ve made a few batches now, and each time, I’ve been tweaking the recipe a bit.
One trick that’s worked for me is adding a little extra cinnamon and butter in the filling to make sure they’re really gooey and flavorful. And instead of the traditional cream cheese frosting, I’ve been trying different toppings. My favorite so far has been a caramel drizzle—something about the sweetness with the cinnamon makes it extra indulgent! I also made a batch with apple slices in the filling, which added a nice texture and tasted amazing, especially during the fall.
If you’re craving cinnamon rolls but haven’t tried making them from scratch, give it a go! It’s easier than you think, and you can really get creative with the fillings and toppings. Has anyone else tried adding different ingredients to theirs? Would love to hear some ideas!
https://papaly.com/9/HzLS
Hey all! I’ve been experimenting with cinnamon roll recipes lately and can’t believe how easy it is to make them at home. I always thought it was this complicated process, but once you get the dough right, the rest is a breeze. I’ve made a few batches now, and each time, I’ve been tweaking the recipe a bit.
One trick that’s worked for me is adding a little extra cinnamon and butter in the filling to make sure they’re really gooey and flavorful. And instead of the traditional cream cheese frosting, I’ve been trying different toppings. My favorite so far has been a caramel drizzle—something about the sweetness with the cinnamon makes it extra indulgent! I also made a batch with apple slices in the filling, which added a nice texture and tasted amazing, especially during the fall.
If you’re craving cinnamon rolls but haven’t tried making them from scratch, give it a go! It’s easier than you think, and you can really get creative with the fillings and toppings. Has anyone else tried adding different ingredients to theirs? Would love to hear some ideas!
Get the Results You Want: Click to Learn More https://india-aviator-game.com/
https://jsbin.com/civulacode
Hey all! I’ve been experimenting with cinnamon roll recipes lately and can’t believe how easy it is to make them at home. I always thought it was this complicated process, but once you get the dough right, the rest is a breeze. I’ve made a few batches now, and each time, I’ve been tweaking the recipe a bit.
One trick that’s worked for me is adding a little extra cinnamon and butter in the filling to make sure they’re really gooey and flavorful. And instead of the traditional cream cheese frosting, I’ve been trying different toppings. My favorite so far has been a caramel drizzle—something about the sweetness with the cinnamon makes it extra indulgent! I also made a batch with apple slices in the filling, which added a nice texture and tasted amazing, especially during the fall.
If you’re craving cinnamon rolls but haven’t tried making them from scratch, give it a go! It’s easier than you think, and you can really get creative with the fillings and toppings. Has anyone else tried adding different ingredients to theirs? Would love to hear some ideas!
https://www.instapaper.com/read/1715217358
Hey all! I’ve been experimenting with cinnamon roll recipes lately and can’t believe how easy it is to make them at home. I always thought it was this complicated process, but once you get the dough right, the rest is a breeze. I’ve made a few batches now, and each time, I’ve been tweaking the recipe a bit.
One trick that’s worked for me is adding a little extra cinnamon and butter in the filling to make sure they’re really gooey and flavorful. And instead of the traditional cream cheese frosting, I’ve been trying different toppings. My favorite so far has been a caramel drizzle—something about the sweetness with the cinnamon makes it extra indulgent! I also made a batch with apple slices in the filling, which added a nice texture and tasted amazing, especially during the fall.
If you’re craving cinnamon rolls but haven’t tried making them from scratch, give it a go! It’s easier than you think, and you can really get creative with the fillings and toppings. Has anyone else tried adding different ingredients to theirs? Would love to hear some ideas!