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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#
39,761
questions
51,661
answers
573
users
Recent questions tagged C#
1
answer
12
views
How to sort a list of data classes by multiple columns in C#
asked
1 day
ago
by
avibootz
c#
sort-list-of-data-classes-by-multiple-columns
1
answer
16
views
How to generate non‑overlapping random ranges (start,end),(start,end) in C#
asked
3 days
ago
by
avibootz
c#
c#-generate-non-overlapping-random-ranges
generate-non-overlapping-random-ranges
2
answers
16
views
How to merge overlapping ranges (start,end),(start,end) in C#
asked
4 days
ago
by
avibootz
c#
c#-merge-overlapping-ranges
merge-overlapping-ranges
1
answer
14
views
How to combine different sizes 2D array and 1D array by summing element‑by‑element in C#
asked
5 days
ago
by
avibootz
c#
c#-combine-different-sizes-2d-array-and-1d-array
combine-different-sizes-2d-array-and-1d-array-by-summing-element-by-element
1
answer
13
views
How to flatten two 2D arrays into a single 1D array in C#
asked
5 days
ago
by
avibootz
c#
c#-flatten-two-2d-arrays-into-single-1d-array
flatten-two-2d-arrays-into-single-1d-array
1
answer
14
views
How to combine two 2D arrays by summing element‑by‑element in C#
asked
5 days
ago
by
avibootz
c#
c#-combine-two-2d-arrays-by-summing-element-by-element
combine-two-2d-arrays-by-summing-element-by-element
2
answers
21
views
How to merge two 2D arrays horizontally in C#
asked
5 days
ago
by
avibootz
c#
c#-merge-two-2d-arrays-horizontally
merge-two-2d-arrays-horizontally
2
answers
15
views
How to merge two 2D arrays vertically in C#
asked
5 days
ago
by
avibootz
c#
c#-merge-two-2d-arrays-vertically
merge-two-2d-arrays-vertically
1
answer
21
views
How to merge two strings based on shared suffix and prefix in C#
asked
Jan 23
by
avibootz
c#
c#-merge-two-strings
merge-two-strings-based-on-shared-suffix-and-prefix
1
answer
18
views
How to sort by strings a mixed pair of string and number elements in a list with C#
asked
Jan 22
by
avibootz
c#
c#-sort-list
sort-by-strings-mixed-pair-of-string-number-elements-in-list
1
answer
18
views
How to sort by numbers a mixed pair of string and number elements in a list with C#
asked
Jan 22
by
avibootz
c#
c#-sort-list
sort-by-numbers-mixed-pair-of-string-number-elements-in-list
1
answer
19
views
How to turn a total number of seconds into years, months, days, minutes and seconds in C#
asked
Jan 21
by
avibootz
c#
c#-turn-total-number-of-seconds-into-years-months-days-minutes-seconds
turn-total-number-of-seconds-into-years-months-days-minutes-seconds
1
answer
21
views
How to check if a string is IPv4 or IPv6 or invalid in C#
asked
Jan 19
by
avibootz
c#
c#-check-if-string-is-ipv4-or-ipv6-or-invalid
check-if-string-is-ipv4-or-ipv6-or-invalid
1
answer
19
views
How to print a calendar for a specific month and year in C#
asked
Jan 18
by
avibootz
c#
c#-print-calendar-for-specific-month-and-year
print-calendar-for-specific-month-and-year
1
answer
22
views
How to print the calendar for a specific year in C#
asked
Jan 17
by
avibootz
c#
c#-print-calendar-for-specific-year
print-calendar-for-specific-year
1
answer
16
views
How to group words by first letter in C#
asked
Jan 16
by
avibootz
c#
c#-group-words-by-first-letter
group-words-by-first-letter
1
answer
27
views
How to find the volume of a capsule in C#
asked
Jan 12
by
avibootz
c#
c#-find-volume-of-capsule
find-volume-of-capsule
1
answer
29
views
How to implement ternary search to find a value in a sorted array with C#
asked
Jan 12
by
avibootz
c#
c#-implement-ternary-search-to-find-value-in-sorted-array
implement-ternary-search-to-find-value-in-sorted-array
1
answer
25
views
How to convert a character (flatten) matrix to a single string in C#
asked
Jan 10
by
avibootz
c#
c#-convert-character-matrix-to-single-string
convert-character-matrix-to-single-string
flatten_char_matrix
1
answer
21
views
How to convert mixed-type list items to an IEnumerable string using LINQ in C#
asked
Jan 9
by
avibootz
c#
c#-convert-mixed-type-list-items-to-ienumerable-string-using-linq
convert-mixed-type-list-items-to-ienumerable-string-using-linq
1
answer
26
views
How to convert a string array to a list using LINQ in C#
asked
Jan 8
by
avibootz
c#
c#-convert-string-array-to-list-using-linq
convert-string-array-to-list-using-linq
2
answers
28
views
How to call a Windows shell command using C#
asked
Jan 8
by
avibootz
c#
c#-call-windows-shell-command
call-windows-shell-command
1
answer
26
views
How to hash a set of GUIDs in C#
asked
Jan 7
by
avibootz
c#
c#-hash-set-of-guids
hash-set-of-guids
1
answer
25
views
How to check if each letter in a string maps to the first letter of a word in another string with C#
asked
Jan 6
by
avibootz
c#
c#-each-letter-string-maps-first-letter-word-another-string
each-letter-string-maps-first-letter-word-another-string
1
answer
32
views
How to check if a string can be constructed by using the letters of another string in C#
asked
Jan 5
by
avibootz
c#
c#-string-constructed-letters-another-string
string-constructed-letters-another-string
1
answer
23
views
How to product of array except self (arr[i] is equal to the product of all the elements except arr[i]) in C#
asked
Jan 3
by
avibootz
c#
c#-product-array-except-self-arr_i
product-array-except-self-arr_i
2
answers
30
views
How to convert days into human-readable years, months and days in C#
asked
Dec 31, 2025
by
avibootz
c#
c#-days-to-human-readable-years-months-days
days-to-human-readable-years-months-days
1
answer
35
views
How to clear bits in the given range in C#
asked
Dec 30, 2025
by
avibootz
c#
c#-clear-bits-given-range
clear-bits-given-range
1
answer
30
views
How to get the 4 least significant bits in a byte with C#
asked
Dec 28, 2025
by
avibootz
c#
c#-get-4-least-significant-bits-byte
get-4-least-significant-bits-byte
1
answer
36
views
How to check whether a user string contains any forbidden words from a list in C#
asked
Dec 26, 2025
by
avibootz
c#
c#-check-user-string-contains-forbidden-words
check-user-string-contains-forbidden-words
2
answers
36
views
How to check if the sum of two halves of a number is equal in C#
asked
Dec 22, 2025
by
avibootz
c#
c#-cpp-sum-two-halves-number-equal
sum-two-halves-number-equal
1
answer
23
views
How to check if two halves of a number are equal in C#
asked
Dec 21, 2025
by
avibootz
c#
c#-two-halves-number-equal
two-halves-number-equal
2
answers
28
views
How to check if two strings are isomorphic in C#
asked
Dec 19, 2025
by
avibootz
c#
c#-check-two-strings-isomorphic
check-two-strings-isomorphic
1
answer
39
views
How to remove text between parentheses in a string using C#
asked
Dec 17, 2025
by
avibootz
c#
c#-remove-text-between-parentheses-in-string
remove-text-between-parentheses-in-string
2
answers
54
views
How to print the boundary elements of a matrix in C#
asked
Dec 15, 2025
by
avibootz
c#
c#-print-boundary-elements-matrix
print-boundary-elements-matrix
1
answer
42
views
How to create alphabetical four letters combinations using LINQ in C#
asked
Dec 15, 2025
by
avibootz
c#
c#-alphabetical-four-letter-combinations-linq
alphabetical-four-letter-combinations-linq
1
answer
32
views
How to use LINQ select query on a list of objects in C#
asked
Dec 14, 2025
by
avibootz
c#
c#-linq-select-list-objects
linq-select-list-objects
1
answer
65
views
How to calculate the area of a triangle using Heron’s formula in C#
asked
Dec 14, 2025
by
avibootz
c#
c#-area-triangle-herons-formula
area-triangle-herons-formula
1
answer
39
views
How to find the missing number in an array containing numbers from 1 to n in O(1) time complexity with C#
asked
Dec 10, 2025
by
avibootz
c#
c#-missing-number-array-o1-time-complexity
missing-number-array-o1-time-complexity
1
answer
38
views
How to convert a hashtable to string array in C#
asked
Dec 4, 2025
by
avibootz
c#
c#-hashtable-string-array
hashtable-string-array
2
answers
50
views
How to convert a hashtable keys to string array in C#
asked
Dec 4, 2025
by
avibootz
c#
c#-hashtable-keys-string-array
hashtable-keys-string-array
1
answer
31
views
How to convert a hashtable to a string in C#
asked
Dec 4, 2025
by
avibootz
c#
c#-hashtable-string
hashtable-string
1
answer
40
views
How to convert a Roman number to an integer in C#
asked
Dec 3, 2025
by
avibootz
c#
c#-roman-integer
roman-integer
1
answer
46
views
How to format an array of strings in lines with maxWidth without breaking the words in C#
asked
Dec 2, 2025
by
avibootz
c#
c#-format-array-strings-lines-maxwidth
format-array-strings-lines-maxwidth
1
answer
36
views
How to convert an integer to Roman numerals in C#
asked
Dec 1, 2025
by
avibootz
c#
c#-integer-roman-numerals
integer-roman-numerals
1
answer
50
views
How to check if the last index of an array is reachable by jumping based on element values from index 0 in C#
asked
Dec 1, 2025
by
avibootz
c#
c#-last-index-array-jumping-by-elements-value
last-index-array-jumping-by-elements-value
1
answer
35
views
How to find two prime numbers that, when concatenated, form another prime number in C#
asked
Nov 28, 2025
by
avibootz
c#
c#-prime-concatenate
prime-concatenate
1
answer
34
views
How to generate an N-digit integer random number in C#
asked
Nov 27, 2025
by
avibootz
c#
c#-n-digit-integer-random
n-digit-integer-random
1
answer
37
views
How to select random two digits from anywhere in a number with C#
asked
Nov 26, 2025
by
avibootz
c#
c#-random-two-anywhere-digits
random-two-anywhere-digits
1
answer
24
views
How to select random two consecutive digits from a number in C#
asked
Nov 25, 2025
by
avibootz
c#
c#-random-two-consecutive-digits
random-two-consecutive-digits
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