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Roman to Integer
Given a roman numeral, convert it to an integer.Input is guaranteed to be within the range from 1 to 3999. 1 public class Solution { 2 public int ...
分类:其他好文   时间:2014-08-05 11:02:09    阅读次数:242
Exception和RuntimeException
public class RuntimeExceptionDemo01 { public static void main(String[] args) { String string="123"; int temp=Integer.parseInt(string); System.out.prin...
分类:其他好文   时间:2014-08-05 11:01:09    阅读次数:203
[leecode]Evaluate Reverse Polish Notation
Evaluate Reverse Polish NotationEvaluate the value of an arithmetic expression inReverse Polish Notation.Valid operators are+,-,*,/. Each operand may ...
分类:其他好文   时间:2014-08-05 10:57:19    阅读次数:184
xtu read problem training 3 A - The Child and Homework
The Child and HomeworkTime Limit: 1000msMemory Limit: 262144KBThis problem will be judged onCodeForces. Original ID:437A64-bit integer IO format:%I64d...
分类:其他好文   时间:2014-08-05 10:50:09    阅读次数:321
《java中把金额以3位分开的计数法》
String?str1?=?"123456789"; ??str1?=?new?StringBuilder(str1).reverse().toString();?????//先将字符串颠倒顺序 ??String?str2?=?""; ??for(int?i=0;i<str1.length();i++){ ??...
分类:编程语言   时间:2014-08-05 09:44:49    阅读次数:232
xtu summer individual-4 B - Party All the Time
Party All the TimeTime Limit: 2000msMemory Limit: 32768KBThis problem will be judged onHDU. Original ID:435564-bit integer IO format:%I64d Java class ...
分类:其他好文   时间:2014-08-05 09:34:18    阅读次数:280
LeetCode第四题,Add Two Numbers
题目原文: You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a single digit. Add the two numbers and return it ...
分类:其他好文   时间:2014-08-05 00:51:58    阅读次数:257
STL--F - Sequence(n*m->求最小的前m个和)
F - Sequence Time Limit:6000MS     Memory Limit:65536KB     64bit IO Format:%I64d & %I64u Submit Status Description Given m sequences, each contains n non-negative integer. Now we ma...
分类:其他好文   时间:2014-08-05 00:51:18    阅读次数:284
xtu summer individual 4 C - Dancing Lessons
Dancing LessonsTime Limit: 5000msMemory Limit: 262144KBThis problem will be judged onCodeForces. Original ID:45C64-bit integer IO format:%I64d Java cl...
分类:其他好文   时间:2014-08-04 21:01:07    阅读次数:294
算法题:反转单链表
题目:存在一个单链表,头指针为head,实现单链表的反转Node *Reverse(Node *head)。 该算法的求解办法有很多,如: 方法1:先顺序变量单链表,将结点保存到栈中,在从栈中弹出结点,重新建立一个新的单链表; 方法2:用《剑指offer》里面给出的算法,用三个指针来实现; 方法3:采用递归实现,是方法2的递归实现形式。 本文主要给出方法2和方法3,在给出具体的代码之前,先要注意几个问题: ...
分类:其他好文   时间:2014-08-04 18:01:57    阅读次数:200
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