Equation精品文章

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  [LeetCode] 640. Solve the Equation

  Problem Solve a given equation and return the value of x in the form of string x=#value. The equation contains only +, - operation, the variable x and its coefficient. If there is no solution for the ...

  pf_miles 2019-08-16 13:38 評論0 收藏0
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  399. Evaluate Division

  ...來簡單點。復(fù)雜度沒什么差別都是O(V+E)，這道題里面E = equations.length, V最多是2E，所以每次查找的復(fù)雜度是O(equations.length)，有queries.length次查找。注意防止重復(fù)路徑，要用visited。 public class Solution { public double[] calcEquation(String[][...

  yanest 2019-08-14 17:26 評論0 收藏0
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  基于案例的軟件構(gòu)造教程第二章課后題答案

  ...c void main(String[] args) { printDog(); printCat();} 標(biāo)記耦合 typedef equation { int a;}Equation;void generateExercise(){ Equation e; return e;}void printExercise(Equation e) { ...}main() ...

  mist14 2021-09-26 09:46 評論0 收藏0
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  leetcode399. Evaluate Division

  題目要求 Equations are given in the format A / B = k, where A and B are variables represented as strings, and k is a real number (floating point number). Given some queries, return the answers. If the ans...

  Jensen 2019-08-16 17:09 評論0 收藏0
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  Python基礎(chǔ)之(七)函數(shù)

  ...方程 from __future__ import division import math def quadratic_equation(a,b,c): delta = b * b - 4 * a * c if delta < 0: return False elif delta == 0: return -(b / (2 ...

  microelec 2019-07-25 10:53 評論0 收藏0
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  Sherman-Morrison公式及其應(yīng)用

  ...算法可以參考博客：三對角線性方程組(tridiagonal systems of equations)的求解 。??綜上，我們利用Sherman-Morrison公式的思想，可以將循環(huán)三對角線性方程組轉(zhuǎn)化為三對角線性方程組求解。我們將會在下面給出該算法的Python語言實現(xiàn)。...

  lookSomeone 2019-07-30 16:28 評論0 收藏0
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  程序員的算法趣題Q13: 滿足字母算式的解法

  ...collections import dequeimport itertools as itclass Solution: def stringEquation(self, strEqu:str): strEqu: Equation in the form of string with character representing digit, ...

  Clect 2021-09-06 15:02 評論0 收藏0
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  Python基礎(chǔ)

  ... return -x my_abs(-100) 引入函數(shù)庫 import math def quadratic_equation(a, b, c): x = b * b - 4 * a * c if x < 0: return none elif x == 0: return -b / (2 *a) else:...

  Shonim 2019-07-25 11:23 評論0 收藏0