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Leetcode | Combination Sum I && II
Combination Sum IGiven a set of candidate numbers (C) and a target number (T), find all unique combinations in C where the candidate numbers sums to T...
分类:其他好文   时间:2014-05-19 16:41:14    阅读次数:269
two sum
Question 1:Given an array of integers, find two numbers such that they add up to a specific target number.The function twoSum should return indices of...
分类:其他好文   时间:2014-05-19 09:35:41    阅读次数:321
表达式求值
#ifndef MAINFUNC_H#define MAINFUNC_H#include #include #include #include //1. Get the numbers//2. Modify the expression like (1+1*1)*(1-1); 1 represent...
分类:其他好文   时间:2014-05-18 19:54:02    阅读次数:514
九度oj 题目1546:迷宫问题 (概率dp guess消元)
题目描述: 给定一个n*m的迷宫,如 S.. ..# E.E 其中,S代表开始位置,#代表不可行走的墙,E代表出口。 主人公从开始位置出发,每次等概率的随机选择下一个可以行走的位置,直到到达某一个出口为止。 现在他想知道,在这一概率事件中,它从开始位置走到某一个出口的期望步数是多少。 输入: 输入包含多组测试用例,每组测试用例由两个整数n,m(1 接下去...
分类:其他好文   时间:2014-05-18 10:34:57    阅读次数:260
LeetCode: Next Permutation [030]
【题目】 Implement next permutation, which rearranges numbers into the lexicographically next greater permutation of numbers. If such arrangement is not possible, it must rearrange it as the lowest possible order (ie, sorted in ascending order). The replac...
分类:其他好文   时间:2014-05-18 09:54:53    阅读次数:242
[矩阵+线段树] zoj 3772 Calculate the Function
题目链接: http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemId=5235 Calculate the Function Time Limit: 2 Seconds      Memory Limit: 65536 KB You are given a list of numbers A1 A2 .. AN...
分类:其他好文   时间:2014-05-18 09:52:49    阅读次数:410
HDU-4734-F(x)
Problem Description For a decimal number x with n digits (AnAn-1An-2 ... A2A1), we define its weight as F(x) = An * 2n-1 + An-1 * 2n-2 + ... + A2 * 2 + A1 * 1. Now you are given two numbers A and...
分类:其他好文   时间:2014-05-18 06:35:50    阅读次数:300
【LeetCode】Triangle
Given a triangle, find the minimum path sum from top to bottom. Each step you may move to adjacent numbers on the row below.For example, given the fol...
分类:其他好文   时间:2014-05-18 02:11:19    阅读次数:302
【LeetCode】Multiply Strings
Given two numbers represented as strings, return multiplication of the numbers as a string.Note: The numbers can be arbitrarily large and are non-nega...
分类:其他好文   时间:2014-05-18 01:25:07    阅读次数:288
Leetcode | Next Permutation
Implement next permutation, which rearranges numbers into the lexicographically next greater permutation of numbers.If such arrangement is not possibl...
分类:其他好文   时间:2014-05-17 23:39:30    阅读次数:272
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