Easy Math Tip and LUA verification
Do you want to compute such numbers in two seconds? such as 85 x 85, 97 x 93, 23 x 27 … ? Multiplication of two digits (from 10 …
Category: math
How to Evaluate Reverse Polish Notation using Stack?
Polish notation/expression is also known as ‘prefix notation’ where the numbers are preceded by its operator (placed in the front). For example, “3 * 5” transformed to polish notation …
C/C++ Coding Exercise – Count and Say – LeetCode Online Judge – Simulation of Number Sequences
April 4, 2014
algorithms, beginner, c / c++, code, code library, implementation, interview questions, leetcode online judge, math, programming languages, string
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The sequence is interesting. It starts from ‘1’. The next number always counts the previous number in digits one by one. For example, the second number in the series …
Storing a number inside a string using PHP
March 27, 2014
algorithms, code, code library, cryptography, implementation, math, php, programming languages, string, tricks, webhosting
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As we all know, we can store a set of boolean values (Yes or No, True of False) in a integer (signed or unsigned). For example, you can define …
C/C++ Coding Exercise – Unique Paths II – Dynamic Programming with Obstacles – Leetcode Online Judge – DP with Constraints
March 23, 2014
algorithms, c / c++, code, dynamic programming, implementation, leetcode online judge, math, optimization, programming languages
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The Dynamic Programming DP is one of the most-used approach to solve problems that satisfy the overlapping sub-problems and the optimal substructures. The simplest example is to compute Fibonacci …