Code Notes

摘要：Then-queens puzzle is the problem of placingnqueens on ann×nchessboard such that no two queens attack each other.Given an integern, return all distinc... 阅读全文

摘要：A declaration makes a name known to a programm. A definition creates the assocatied entity. A variable declaration specifies the variable type and nam... 阅读全文

摘要：Initialization happens when a variable is given a value at the moment it is created. Assignment obliterates the variable's current value and replace t... 阅读全文