java algorithm interview questions

Common algorithm questions in iOS interviews and common iOS interview Algorithms I. Preface Here is an algorithm question you have encountered in your iOS job search. I hope it will help you. Occasionally updated. If you want to run code debugging online, you can copy the code here. Then perform debugging. The followin

Algorithm highlights of interview questions and question Algorithms Idea 1: deduplicate A to A1 and B to obtain B1, and then sort A1 and B1 respectively, check whether each character of a shorter string exists in a longer string. If so, the output problem is: 1. the idea is very simple. This is basically the case for everyone, but there is no bright spot during t

., GC can avoid memory leaks and stack overflow, effectively improve the efficiency of memory utilization, It also frees programmers from tedious memory management.The string S=new string ("xyz"); How many stringobject are created?2, 1 in the text pool, 1 in the heap, first create 1 "XYZ" objects in the text pool, and then copy an "XYZ" object in the heap and assign it to the reference S.Ninth, Math.Round (11.5) How much? Math.Round (-11.5) how much?Math.Round (x) equals (int) Math.floor (x+o.5f

Java Multithreading and Concurrency basics interview questions and AnswersOriginal link: http://ifeve.com/java-multi-threading-concurrency-interview-questions-with-answers/Multithreading and concurrency issues are among the

understand the process of solving the problem, and find out what the individual has done, how to do, and what has been harvested. This is the accumulation of experience. The company ultimately needs to contribute to the work of the staff, so the need for experienced people to help solve the problem, then the ability to solve problems and thinking is very important. For students who do not have much experience, such as a new graduate or an intern, then they need a good foundation and some person

PHP selects the sorting algorithm's classic interview questions lt ;? Php $ unsortedarray (); for ($ i0; $ I lt; 10; $ I ++) {$ unsorted [] rand ();} printUnsortedArray. lt; br gt; printimplode (, $ u PHP select sorting algorithm classic interview questions "; Pri

A few days ago interviewed a company, gave two algorithm topics. Thought it was very interesting, when the interview answer when the answer is not very good. Then came back to find the information. Record it.First, the topic oneThere are 1000 bottles of water, one of which is poisonous, and the mice will die 24 hours after tasting a little poisonous water, at least how many mice can identify the bottle of w

Question: There is a matrix (10*10). The element value can only be 0 or 1. Now, write a function to check whether a row is 1, and each column is 0 (except that this element of the row is 1 ). The program needs to scan the matrix once to obtain the result. Source: Internet, said to be from Microsoft interview questions. Answer: Without considering the requirements of the last sentence of the question, the mo

Title: only 1 bits in the integer number are 1, which is the position of 1 in the integer number?Usually, the interviewer gives the answer is a right shift, and to determine whether the shift value is 1, if it is 1, the output is shifted the number of digits is the answer we want.But this is not the optimal answer, and the time complexity is O (n). So what is the better algorithm, in fact, we can use the dichotomy method to solve this problem more eff

Telephone Interview algorithm question: Find the elements with the most repeated entries in the array and print The problem is not difficult. You can give a better solution. Java code Import java. util. hashmap; Import java. util. iterator; Import

' =>0, ' z ' =>0); } $arr _temp=Str_split($str, 1); foreach($arr _temp as $v){ if($tmp[$v]$num){ $tmp[$v]+=$num; } } return $tmp; } functionGetstringintersect ($str 1,$str 2){ $temp=stringtochar ($str 1, 1); //$str 2 $num with 2 is to differentiate Stemp in the original 1 is set in $str 1 $temp=stringtochar ($str 2, 2,$temp); $result= ' '; foreach($temp as $key=$value) { if($value===3){ $result.=$key; }

[Algorithm Interview Questions] search for the nearest common ancestor node of the two nodes in the binary search tree Http://geeksforgeeks.org /? P = 1029 Given the value of any two nodes in a binary search tree, you need to write a C/C ++ program to find the closest common ancestor of the two nodes, you can assume that the given value exists in a node of a bina

output is: Hxeykuezzsyoxspsronnbskgndjxryyaoorvgifbhkkxocgkmmqhsfegufyxlmtdgsvgdifxewnlxmgemttsqbknhhmtnezsosoldbgjoqsrwbaaqmbyuyeij Rofgrpddfycidiqbyhcpctdjyzzjsaioqybxwfyhrdndwcxwylpoavtngbjrinwxbjrppgeecrczwaekroqmzkzqucabnrvylixjcyqfqbofttaqkfncxdtro Cizjntbvhdpaqbbvuohvlerqaayrvtyxrsvpdqxdwhrmtieqrfjvyquwbmrysmbmxfbgyfdigrohuewgsilzvynxexftatavatlasifmejvylgmrutixvckds AaazbjyfacuwopddUsldgrtqdcoqupnbjotdnunqjwczucqdkeyjpunevmhtcqzqswrqifzvriqciumnqbkklhpmywuktrrgfqywjsxfizejxdugoalrvfjffk

' =>0, ' z ' =>0); } $arr _temp=Str_split($str, 1); foreach($arr _temp as$v){ if($tmp[$v]$num){ $tmp[$v]+=$num; } } return$tmp; } functionGetstringintersect ($str 1,$str 2){ $temp=stringtochar ($str 1, 1); //$str 2 $num with 2 is to differentiate Stemp in the original 1 is set in $str 1$temp=stringtochar ($str 2, 2,$temp); $result=''; foreach($temp as$key=$value) { if($value===3){ $result.=$key; } }