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
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cynder:
2020-07-08 23:36:06
Make I/O fast, it cost me some WAs.
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nadstratosfer:
2020-04-18 06:11:52
Pythonists submit in PyPy, it's possible to get AC here. The input is huge, 500000 integers, so ensure your I/O is up to the task as well -> https://www.spoj.com/ranks/INTEST/lang=PYTH%203.2.3 |
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Rafael Godoi:
2020-04-18 03:21:07
TLE for Python. Don't waste your time. |
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vedudx:
2019-12-15 19:03:06
this website does'nt accepts cin & cout.
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marsar24:
2018-10-12 18:19:09
My code runs fine on other IDEs. Why is it returning error SIGSEV something?
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one_piece_:
2018-06-30 22:19:21
read the comments till end. |
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code0monkey1:
2018-06-12 13:19:18
hint : lower_bound gives the iterator to the first element in the array that is equal or GREATER than the number being searched . ( so you could get a valid index in return even though the element would not be present in the array, so you need to check if the iterator points to the number actually being searched to validate the answer ) |
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caro_linda2018:
2018-05-29 03:15:19
Go to hell this stupid TLE thing, just because I didn't write scanf and printf. |
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pallindromeguy:
2017-12-27 15:30:02
Simple binary search and arrays worked for me along with scanf/printf |
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kundan_2508:
2017-10-11 21:16:17
it is giving run time error..how can i remove it?
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| 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 |
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