public class Test { public static void main(String[] args) { System.out.println(recursive(30)); } public static int recursive(int i){ // int a0=1; // int a1=1; // int a2=a1+a0; // int a3=a2+a1; if (i==0||i==1) return 1; return recursive(--i)+recursiv
Given an array of integers, every element appears three times except for one. Find that single one. Note:Your algorithm should have a linear runtime complexity. Could you implement it without using extra memory? public class Solution { public int sin
在硬件语言Verilog中按位操作是相对容易的,在C语言中一样的用好逻辑符号“|”.“!”.“&”.“>>”等即可.但是在Matlab中一些类似的操作是判断或者逻辑用法,不能用在按位操作上.那么在其中就需要用到函数来进行操作了. 在此记录两种按位操作的方法:按位左右移bitshift,按位与bitand. 按位左右移bitshift 1 2 3 4 5 6 7 8 9 10 11 C = bitshift(A,K) returns the value of A shifted to t
Windows 64位操作系统为提供对32位应用程序的兼容,在“C:\Windows\SysWOW64”目录下保留了很多32位的工具(如CMD.exe是32位的).在Windows 64位操作系统上跑三十二位应用程序,操作注册表,搜素目录时,微软通过反射(Reflector),会将“\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall”替换为"\\SOFTWARE\\Wow6432Node\\Microsoft\\Windows\\C
Given an array of integers, every element appears three times except for one. Find that single one. Note:Your algorithm should have a linear runtime complexity. Could you implement it without using extra memory? 思路: 这个题是Single Number的进阶版,如果其他的数都出现两次而