Questions tagged [time-limit-exceeded]
When the code scales so poorly in the face of large inputs that it cannot complete in a reasonable amount of time, use this instead of the [performance] tag.
1,058
questions
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Disproving Euler proposition by brute force in C
I wrote a little bit of code to brute force disprove the Euler proposition that states:
$$a^4 + b^4 + c^4 = d^4$$
has no solution when \$a\$, \$b\$, \$c\$, \$d\$ are positive integers.
I'm no ...
- 2,373
24
votes
7
answers
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Finding pairs of Amicable Numbers, up to 10000
I have this program to find pairs of amicable numbers in C:
...
- 427
23
votes
8
answers
3k
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Area of the triangle generated by the hands of a clock
Problem explanation:
Let’s suppose we have a clock that has an hour hand 3 units long, a minute hand 4 units long, and a second hand 5 units long. The hour hand moves once every hour, the minute hand ...
- 333
21
votes
3
answers
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Loading military units into ships optimally, using backtracking
I solved the following problem using backtracking:
We are given a list of military units, their weight and their
(numerical) strength. We have a number of ships with a limited
carrying capacity....
- 313
20
votes
2
answers
3k
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Search a big (13 GB) Outlook PST file
I have an Outlook PST file of a pretty big size (13 GB). For some indexing purpose I needed to scan through the full PST file to get all the PR_SEARCH_KEY and then ...
- 311
20
votes
1
answer
728
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Remapping and interpolating 255x1024 array
I have a function that accepts a \$255\times1024\$ array and remaps it to another array in order to account for some hardware related distortion (lines that should be straight are curved by the lens). ...
- 303
19
votes
3
answers
1k
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Enigma machine simulator - improving recursive algorithm performance
I'm new to Haskell and am confused by why my code seems to preform so poorly, and wonder if there's something I've not grasped about the coding philosophy behind the language, or the best way to take ...
- 401
19
votes
9
answers
2k
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Repeatedly eliminate a substring
I'm trying to pass a programming challenge where we are to replace all instances of a substring in a string until there are none left. So an input like
...
- 313
18
votes
5
answers
3k
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Flipping coins performance
This is the Flipping coins problem on CodeChef:
There are \$N\$ coins kept on the table, numbered from \$0\$ to \$N - 1\$. Initially, each coin is kept tails up. You have to perform two types of ...
- 283
18
votes
4
answers
3k
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Leetcode 15. 3 Sum
Problem statement
Given an array S of n integers, are there elements a, ...
- 2,396
17
votes
7
answers
12k
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Hacker Rank: Array left rotation
This code is to solve the Hacker Rank problem array left rotation.
A left rotation operation on an array of size n shifts each of the array's elements 1 unit to the left. For example, if 2 left ...
- 333
17
votes
2
answers
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Yandex programming contest: Alarms
I've tried to solve this challenge about 4 hours during the contest, but all my attempts exceeded the time limit. I tried to solve it with min-heap, but can't pass all the tests. How it can be solved ...
- 281
14
votes
6
answers
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Counting numbers with specific digits
The challenge:
Suppose you are inhabitant of a planet where 1, 7, and 9 are lucky digits. A lucky number for you is a number that contains only your lucky digits in it. For ex: 1, 79, 911, 9917 etc....
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14
votes
2
answers
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O PC, why are you so slow?
In order to test some software I've written, I need to write values to a test harness with OLE for Process Control (OPC). The problem is, for a larger range of values I'm generating points for (say ...
- 21.8k
14
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4
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Codechef: Prime Number Generator
Peter wants to generate some prime numbers for his cryptosystem. Help
him! Your task is to generate all prime numbers between two given
numbers!
Input
The input begins with the number t of test cases ...
- 241