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Programming & Software Q&A | CollectiveSolver
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Welcome to collectivesolver - Programming & Software Q&A with code examples. A website with trusted programming answers. All programs are tested and work.
Contact: aviboots(AT)netvision.net.il
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Recent questions tagged c
41,445
questions
53,992
answers
573
users
Recent questions tagged c
1
answer
64
views
How to select random three consecutive digits from a 6-digit number in C
asked
Nov 25, 2025
by
avibootz
c
c-random-three-consecutive-digits
random-three-consecutive-digits
1
answer
59
views
How to convert a degree to a compass direction in C
asked
Nov 24, 2025
by
avibootz
c
c-degree-compass-direction
degree-compass-direction
1
answer
78
views
How to calculate the sum of all Fibonacci numbers between two left and right indices in C
asked
Nov 23, 2025
by
avibootz
c
c-sum-fibonacci-numbers
sum-fibonacci-numbers
1
answer
86
views
How to generate all possible permutations and combinations of an array of chars in C
asked
Nov 21, 2025
by
avibootz
c
c-array-all-permutations-combinations
all-permutations-combinations
1
answer
72
views
How to find the first 4-digit prime number where all digits are unique in C
asked
Nov 20, 2025
by
avibootz
c
c-4-digit-prime-unique
4-digit-prime-unique
1
answer
82
views
How to write an equivalent to PHP explode(string $separator, string $string, int $limit = INT_MAX): array in C
asked
Nov 20, 2025
by
avibootz
c
c-explode
php-explode-c
explode-function
1
answer
81
views
How to generate a random integer from a range [0, N] that is not in a unique integer list with C
asked
Nov 19, 2025
by
avibootz
c
c-random
c-random-excluding-list
random-excluding-list
1
answer
70
views
How to replace all occurrences of a specific digit in a floating-point number with C
asked
Nov 18, 2025
by
avibootz
c
c-replace-all-occurrences-digit-float
replace-all-occurrences-digit-float
1
answer
77
views
How to calculate the length of legB and hypotenuse of a right-angle triangle with a given perimeter and legA in C
asked
Nov 17, 2025
by
avibootz
c
c-right-angle-triangle
right-angle-triangle
1
answer
81
views
How to replace a digit in a floating-point number by index with C
asked
Nov 17, 2025
by
avibootz
c
c-replace-digit-float
replace-digit-float
2
answers
82
views
How to extract the first digit from a floating-point number in C
asked
Nov 17, 2025
by
avibootz
c
c-extract-first-digit-floating-point
extract-first-digit-floating-point
1
answer
73
views
How to check whether each substring range (L to R) from an array of substring ranges is a palindrome in C
asked
Nov 16, 2025
by
avibootz
c
c-substring-range-palindrome
substring-range-palindrome
1
answer
66
views
How to write an equivalent to PHP count_chars(string $string, int $mode = 0): array|string function in C
asked
Nov 16, 2025
by
avibootz
c
c-count-chars
php-count-chars-c
count-chars
1
answer
81
views
How to convert an array of strings and group all the anagrams into subarrays in C
asked
Nov 14, 2025
by
avibootz
c
c-array-anagram
group-anagrams
1
answer
78
views
How to get all the substrings with exactly k distinct characters from a given string in C
asked
Nov 14, 2025
by
avibootz
c
c-substring
c-string
substrings-with-k-distinct-characters
1
answer
69
views
How to find the K smallest numbers in an unsorted array with C
asked
Nov 12, 2025
by
avibootz
c
c-find-array
1
answer
85
views
How to find the Kth smallest number in an unsorted array with C
asked
Nov 11, 2025
by
avibootz
c
c-find-array
1
answer
91
views
How to return a pointer to an array of int pointers from a function in C
asked
Nov 10, 2025
by
avibootz
c
c-pointers
1
answer
77
views
How to  return two pointers from a function in C
asked
Nov 10, 2025
by
avibootz
c
c-pointers
1
answer
60
views
How to find a list of numbers up to a limit that is a palindrome in base 10 and base 2 in C
asked
Nov 10, 2025
by
avibootz
c
c-bouble-base-palindrome
1
answer
66
views
How to calculate the full number from a percentage of a number in C
asked
Nov 9, 2025
by
avibootz
c
c-percentage
1
answer
71
views
How to find all the numbers that are equal to the sum of the factorials of their digits in C
asked
Nov 9, 2025
by
avibootz
c
c-numbers
c-factorials
1
answer
76
views
How to find the numbers that are the sum of fifth powers of their digits in C
asked
Nov 8, 2025
by
avibootz
c
c-numbers
c-fifth-power
1
answer
88
views
How to find the numbers that are the sum of fourth powers of their digits in C
asked
Nov 8, 2025
by
avibootz
c
c-fourth-power
c-numbers
1
answer
95
views
How to find the floor and ceiling of the value N in an unsorted array with C
asked
Nov 7, 2025
by
avibootz
c
c-ceil
c-floor
c-array
1
answer
77
views
How to use strlen with a pointer to an array of pointers to strings in C
asked
Nov 7, 2025
by
avibootz
c
c-array
c-pointers
1
answer
104
views
How to use strlen with an array of pointers to strings in C
asked
Nov 7, 2025
by
avibootz
c
c-pointers
c-array
1
answer
73
views
How to find the total number of combinations of given coins to reach a specific amount in C
asked
Nov 5, 2025
by
avibootz
c
c-combination
1
answer
75
views
The smallest number that divide in 13, 15, and 17 with C
asked
Nov 5, 2025
by
avibootz
c
c-divide
1
answer
65
views
How to find the smallest prime number that is greater than 1000 in C
asked
Nov 5, 2025
by
avibootz
c
c-prime
1
answer
87
views
How to write a recursive function to generate all permutations of a string in C
asked
Nov 4, 2025
by
avibootz
c
c-recursion
c-string
1
answer
97
views
How to implement a stack using an array with push, pop, and display in C
asked
Nov 4, 2025
by
avibootz
c
c-stack
1
answer
90
views
How to use the c++ equvalent to bitset with _Find_first() and _Find_next() to find set bits indexs in C
asked
Nov 3, 2025
by
avibootz
c
c-bits
1
answer
81
views
How to check if a word is alphabetic in C
asked
Nov 2, 2025
by
avibootz
c
c-word
1
answer
83
views
How to count words in a string with punctuation in C
asked
Nov 2, 2025
by
avibootz
c
c-string
1
answer
83
views
How to get random N rows from a 2D array in C
asked
Nov 2, 2025
by
avibootz
c
c-random
c-array
1
answer
66
views
How to round a number to the nearest power of 2 in C
asked
Oct 31, 2025
by
avibootz
c
c-round
2
answers
71
views
How to round a number to the previous power of 2 in C
asked
Oct 29, 2025
by
avibootz
c
c-round
1
answer
63
views
How to round a number to the next power of 2 in C
asked
Oct 29, 2025
by
avibootz
c
c-round
1
answer
56
views
How to convert a double number to 3 decimal places number in C
asked
Oct 29, 2025
by
avibootz
c
c-double
c-decimal-places
1
answer
53
views
How to check if a word is all uppercase or all lowercase or capitalized in C
asked
Oct 26, 2025
by
avibootz
c
c-word
1
answer
70
views
How to swap all odd and even bits in C
asked
Oct 25, 2025
by
avibootz
c
c-bits
1
answer
57
views
How to use bitwise operators to get the remainder (%) when dividing an integer by 8 in C
asked
Oct 25, 2025
by
avibootz
c
c-bits
1
answer
70
views
How to use bitwise operators to divide an integer by 8 in C
asked
Oct 25, 2025
by
avibootz
c
c-bits
1
answer
70
views
How to check if a number is a multiple of 9 using bitwise operators in C
asked
Oct 25, 2025
by
avibootz
c
c-bits
1
answer
72
views
How to find the digit previous to a given digit in a number with C
asked
Oct 18, 2025
by
avibootz
c
c-digits
1
answer
77
views
How to find the digit next to a given digit in a number with C
asked
Oct 18, 2025
by
avibootz
c
c-digits
1
answer
55
views
How to calculate the Euclidean distance between two points in C
asked
Oct 11, 2025
by
avibootz
c
c-euclidean-distance
1
answer
74
views
How to create an array with random HEX RGB color codes in C
asked
Oct 8, 2025
by
avibootz
c
c-random
c-rgb
1
answer
83
views
How to create a list of random HEX RGB color codes in C++
asked
Oct 8, 2025
by
avibootz
c
c-rgb
c-random
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