# how to determine perfect square

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### [Leetcode] Valid PerfectSquare test Complete square number

Given a positive integer num, write a function which returns True if num is a perfect square else False.Note: do not use any built-in library function such as sqrt .Example 1:Input:16returns:trueExample 2:Input:14returns:falseCredits:Special thanks

### "Blue Bridge Cup" sixth national game C language Group B 2. PerfectSquare (DFS)

If some sides have different squares, you can just spell a larger square, which is called the perfect square.Historically, it took a long time to find a few perfect squares. For example: 22 squares with a length below2 3 4 6 7 8 12 13 14 15 16 17 18

### Question and Solution to the process of proving the perfect coverage of the Board

The so-called perfect checkerboard coverage is like this. On the 8-by-8 chess board, cover it with a 1-by-2 rectangle. Shows the checkerboard: If all the grids on the board are covered, and there is no leakage or repeated coverage, then such

### Python solution leetcode:367. Valid PerfectSquare

Title Description: give a positive integer, do not use built-in functions, such as sqrt (), to determine whether this number is a number of squares. Idea: Direct use of dichotomy, seemingly nothing to say. The code is as follows:1 classsolution

### Chi-square test for Feature Selection

As mentioned above, in addition to classification algorithms, the feature extraction algorithms for processing classification texts also have a huge impact on the final effect. Feature Extraction algorithms are classified into feature selection and

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### SOJ3191 of Problem solving report free square

SOJ3191 of Problem solving report free squareDescriptionTime limit:5000 MS Memory limit:65536 KDescriptionA Positive integer is said to being squarefree if it is divisible by no perfect square larger than 1. For example, the first few squarefree

### Hash table and Perfect hash

We know that any element in an array can be accessed within an O (1) time by direct addressing via an array (directly addressing). Therefore, if the storage space allows, you can provide an array, for each possible keyword to maintain a location,

### Hash table and perfect hash

We know thatDirect addressing)To access any element in the array within the O (1) time. Therefore, if the bucket permits, an array can be provided to reserve a location for each possible keyword, and direct addressing technology can be applied. Hash

### Determines whether an integer is a square number

367. Valid Perfect SquareTest instructions: Do not use the API to determine whether an integer is a square number.The idea of starting is to determine whether the square number is directly in the dichotomy.The wrong code:1 Public

### Ultraviolet-11542 square (equations of different or)

GivenNIntegers you cangenerate2n-1Non-empty Subsets from them. determine for howsets of these subsets the product of all the integers in that is a perfectsquare. for example for the set {4, 6, 10, 15} There are3 such subsets. {4}, {6, 10, 15} and {4,

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