BSEARCH1 - Binary search
You are given a sorted array of numbers, and followed by number of queries, for each query if the queried number is present in the array print its position, else print -1.
Input
First line contains N Q, number of elements in the array and number of queries to follow.
Second line contains N numbers, the elements of the array. Each number will be -10^9 <= ai <= 10^9, 0 < N <= 10^5, 0 < Q <= 5*10^5
Output
For each element in the query, print the elements 0 based location of its first occurence, if present, otherwise print -1.
Example
Input: 5 4 2 4 7 7 9 7 10 4 2 Output: 2 -1 1 0
hide comments
kelaseek:
2014-05-20 17:15:14
int index is giving you wrong answer |
|
SHIVAM DIXIT:
2014-04-22 18:50:10
1.use scanf,printf
|
|
Revti Raman Singh:
2014-03-01 21:27:41
guys use scanf and printf instead of cin and cout ! |
|
miczegla:
2013-10-19 23:46:01
I'm getting WA at 6th test could someone look at my code at help me find problem http://ideone.com/0HseRw |
|
Suhas:
2013-10-19 08:11:02
For future reference: a simplistic (no optimization) binary search with C++'s I/O(cin, cout) will probably give a TLE on 6.
|
|
shashank nagamalla:
2013-06-08 16:04:52
I am getting WA after 6th test case and i am printing first occurrence of the number. |
|
Mostafa 36a2:
2013-05-29 07:20:20
for all who gets WA
|
|
Smirnova Natalia:
2013-03-17 19:38:42
Is there a possibility that input file contains empty lines between other lines? Do I have to add empty lines between lines when outputting the answers? Last edit: 2013-03-17 19:39:08 |
|
Jacek:
2013-02-26 15:01:54
what is a better option ? |
|
Paul Draper:
2013-02-06 21:53:50
FYI, a binary search is not the best way to do this. |
Added by: | jack(chakradarraju) |
Date: | 2012-03-13 |
Time limit: | 1s |
Source limit: | 50000B |
Memory limit: | 1536MB |
Cluster: | Cube (Intel G860) |
Languages: | All |
Resource: | NITT Class |