All Questions
13 questions
31
votes
7
answers
3k
views
Write a C / C++ Polyglot [closed]
This challenge's concept is pretty simple. All you have to do is write a program that will compile as both valid C and valid C++! Well, there are some catches. The program must behave differently when ...
- 111
8
votes
9
answers
3k
views
Shortest C \ C++ function to generate -1, 0 ,1 [closed]
Let a function receive two integers i and j between 0 and ...
- 50.3k
-2
votes
2
answers
3k
views
Conversion to palindrome with minimal points used
Input: a word (2-100 characters)
Convert this word to a palindrome:
delete character - 13 points
add character - 12 points
increase character - 5 points ('d' > 'e')
decrease character - 4 points ('n'...
- 6,253
14
votes
15
answers
14k
views
Compare two integers in C or C++ without comparison operators
Produce the shortest program which takes two signed integers as input (through stdin or as arguments) and displays 3 different outputs depending upon whether the first number is (1) greater than, (2) ...
CommunityBot
- 1
2
votes
2
answers
904
views
Fastest C/C++ comparison function for an opaque field containing doubles
Description:
Write the fastest comparison function for an opaque field containing a double. Here is my example:
...
CommunityBot
- 1
5
votes
4
answers
3k
views
The shortest code to tell if a number is even or odd
One of my colleagues proposed us a challenge: to write the shortest C/C++ program to determine if a number is even or odd.
These are the requirements:
Get a number from keyboard, at run-time (not ...
CommunityBot
- 1
12
votes
5
answers
2k
views
Risk, the Warlight Way
Introduction
In this game, players use their armies to fight other players' armies, capture territories, and become the last man standing. Each turn, players receive a base number of armies to use at ...
CommunityBot
- 1
11
votes
5
answers
3k
views
m3ph1st0s's programming puzzle 3 (C): “Easy bug” [closed]
This is the 3rd of my series of C/C++ puzzles; in case you missed the first 2 they are here:
(1) m3ph1st0s's programming puzzle 1 (C++)
(2) m3ph1st0s's programming puzzle 2 (C++): "Call ...
CommunityBot
- 1
12
votes
1
answer
809
views
Implement an IEEE 754 64-bit binary floating point number through integer manipulation
(I've tagged the question "C" for the time being, but if you're aware of another language that supports unions, you can also use that.)
Your task is to build the four standard mathematical operators <...
- 43.1k
7
votes
7
answers
2k
views
Shortest code that return SIGSEGV among the given languages [duplicate]
I come across a question in a coding competion
"write a code that returns SIGSEGV(Segmentation fault ) " .
Points were given on the basis of length of code.
The prgramming languages available ...
CommunityBot
- 1
5
votes
6
answers
2k
views
Make FizzBuzz using only preprocessor directives
I have a source file here:
#include <FizzBuzz.h>
fizzbuzz
And I want to make "fizzbuzz" turn into a FizzBuzz program ...
CommunityBot
- 1
3
votes
1
answer
861
views
Flip the commented-out code [closed]
This puzzle works for any programming language that has the same // single-line and /* ... */ multi-line comments that C++, C# ...
- 12.6k
2
votes
3
answers
853
views
m3ph1st0s's programming puzzle 4 (C/C++): “3-way swap” [closed]
My last puzzle has generated some confusion and controversy so I decided to give up, for now, on those "replace one character"-type puzzles.
Hope this 4th puzzle will redeem myself after all the ...
CommunityBot
- 1