Given two sparse matrices A and B, return the result of AB. You may assume that A's column number is equal to B's row number. Example: 這道題 ...
Given two strings representing two complex numbers. You need to return a string representing their multiplication. Note i according to the definition. Example : Example : Note: The input strings will ...
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Given two sparse matrices A and B, return the result of AB. You may assume that A's column number is equal to B's row number. Example: 這道題 ...
Given two sparse matrices A and B, return the result of AB. You may assume that A's column number is equal to B's row number. Example: 給2個稀疏 ...
70ms solution: use one HashTable: 160 ms The idea is derived from a CMU lecture. ...
Problem Description: Given two sparse matrices A and B, return the result of AB. You may assume that A's column number is equal to B's row number ...
Nearly every one have used the Multiplication Table. But could you find out the k-th smallest number quickly from the multiplication table ...
Number 數字,是一個大的分類,細分四小類 整數:int 浮點數:float 布爾:bool 復數:complex int 的栗子 無論正數負數都是 int 即使數字再長也還是 int,不會變成像 java 的 long ...
復數是一個數學概念,包含了實部和虛部。在python設計語言中,可以直接定義以j為單位,也可以使用complex函數創建復數,這個函數可以傳實部和虛部,也可以只傳實部。 我們把形如z=a+bj(a,b均為實數)的數稱為復數,其中a稱為實部,b稱為虛部,j稱為虛數單位。↓ 獲取復數x的實部 ...
Given an array nums containing n + 1 integers where each integer is between 1 and n (inclusive), prove that at least one duplicate number must ...