Write a program to solve a Sudoku puzzle by filling the empty cells.Empty cells are indicated by the character'.'.You may assume that there will be on...
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其他好文 时间：
2015-10-06 14:04:44
阅读次数：
237
Follow up for N-Queens problem.Now, instead outputting board configurations, return the total number of distinct solutions.class Solution {public: ...
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其他好文 时间：
2015-10-06 12:56:18
阅读次数：
205
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...
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其他好文 时间：
2015-10-06 12:54:25
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221
最小生成树-Prim算法和Kruskal算法Prim算法1.概览普里姆算法（Prim算法），图论中的一种算法，可在加权连通图里搜索最小生成树。意即由此算法搜索到的边子集所构成的树中，不但包括了连通图里的所有顶点（英语：Vertex (graph theory)），且其所有边的权值之和亦为最小。该算法...
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编程语言 时间：
2015-10-05 16:56:01
阅读次数：
315
Given amxngrid filled with non-negative numbers, find a path from top left to bottom right whichminimizesthe sum of all numbers along its path.Note:Yo...
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其他好文 时间：
2015-10-04 19:35:26
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177
Follow up for "Unique Paths":Now consider if some obstacles are added to the grids. How many unique paths would there be?An obstacle and empty space i...
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其他好文 时间：
2015-10-04 19:35:04
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129
A robot is located at the top-left corner of amxngrid (marked 'Start' in the diagram below).The robot can only move either down or right at any point ...
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其他好文 时间：
2015-10-04 19:33:36
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143
Given a 2D board and a word, find if the word exists in the grid.The word can be constructed from letters of sequentially adjacent cell, where "adjace...
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其他好文 时间：
2015-10-04 17:14:57
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294
Given a m x n matrix, if an element is 0, set its entire row and column to 0. Do it in place.Follow up: Did you use extra space?A straight forward sol...
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其他好文 时间：
2015-10-04 17:14:04
阅读次数：
176
Clone an undirected graph. Each node in the graph contains a label and a list of its neighbors.OJ's undirected graph serialization:Nodes are labeled u...
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其他好文 时间：
2015-10-04 17:11:43
阅读次数：
239
