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Algorithm/Leet Code

LeetCode #977 SquaresOfASortedArray. Algorithm,알고리즘,LeetCode,Codefights,CodeSignal,코드파이트,코드시그널,예제,문제해결능력,example,c++,java,재귀,recursive,datastructure,techinterview,coding,코딩인터뷰,기술면접,연결..

LeetCode #977 SquaresOfASortedArray. Algorithm,알고리즘,LeetCode,Codefights,CodeSignal,코드파이트,코드시그널,예제,문제해결능력,example,c++,java,재귀,recursive,datastructure,techinterview,coding,코딩인터뷰,기술면접,연결리스트

 

 

Runtime: 124 ms, faster than 23.05% of C++ online submissions for Squares of a Sorted Array.

 

Memory Usage: 13.4 MB, less than 68.04% of C++ online submissions for Squares of a Sorted Array.

 

 

It could be better performance if sort using absolute and square at the same time without stl ?

 stl 안쓰고 직접 절대값비교로 정렬하면서 제곱해주면 퍼포먼스 잘 나올듯?

 

LeetCode #977

Q.

 Given an array of integers A sorted in non-decreasing order, return an array of the squares of each number, also in sorted non-decreasing order.

 

 주어진 정수배열 A는 오름차순으로 정렬되어있고, 각 수의 제곱한 배열을 리턴하는데, 오름차순으로 정렬하여 내보내라. 

 

Example 1:

 

Input: [-4,-1,0,3,10]

Output: [0,1,9,16,100]

 

 

Example 2:

 

Input: [-7,-3,2,3,11]

Output: [4,9,9,49,121]

 

 

Note:

  1. 1 <= A.length <= 10000
  2. -10000 <= A[i] <= 10000
  3. A is sorted in non-decreasing order.



// Process 
//1. Input vector

//2. Square all element

//3. Sort

//4. Return vector

 

// 처리과정

//1. 배열 입력받는다.

//2. 제곱한다.

//3. 정렬한다.

//4. 반환한다.

 

Code.. lemme see example code!!!

코드.. 예제코드를 보자!!!

 

 

 

class Solution {
public:
    vector<int> sortedSquares(vector<int>& A) {
            for (int i = 0; i < A.size(); ++i) {
                A[i] = pow(A[i],2);
            }
            sort(A.begin(), A.end());
        
        return A;
    }
};

 

 

 

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