Check length of a string is equal to the number appended at its last
Given a string that is appended with a number at last, write a function that checks whether the length of the string excluding the...
Generate all binary strings without consecutive 1’s
Given an integer k, write a function to print all binary strings of size k with no consecutive 1's
Example
INPUT
k = 3
OUTPUT
"000", "001", "101", "010",...
Check if all rows of a matrix are circular rotations of each other
Given a matrix, write a function to find whether all rows are circular rotations of each other or not
Example
INPUT
s = a b c
c b...
Sort a string according to another string
Given two input strings, a pattern and a string. We need to sort the string according to the order defined by pattern. Pattern string...
Check if string can become empty by recursively deleting given sub-string
Check if the given input string can be deleted completely by deleting given input sub-string recursively.
Given sub-string should be present in the input string
Examples
a)...
Smallest palindrome after replacement
Given input string contains lower case alphabets characters and dots(.). We need to replace all dots with some alphabet character in such a way...
Check if string follows order of characters by a pattern or not
Check if characters in the given input string follows the same order as determined by characters present in the given input pattern.
Examples
a) Input string...
split-four-distinct-strings
Check if the given input string can split into 4 strings such that each string is non-empty and different from each other.
Examples
a) Input string...
Even sub-string count
In the given input string of digits, find the count of substrings which when convert into integer form even.
Example
Input string : 1234
Output : 6
2,...
Reverse string without temporary variable
Write a function to reverse a string without using extra variable.
Example
Input string : “tutorial-cup”
Output : “puc-lairotut”
Time complexity : O(n)
Algorithm
1. Store start index in low...
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Multiplication of two matrices
Given two matrices, this function will multiply the two matrices and prints the result. Here, necessary and sufficient condition is the number of columns...
Subtraction of two matrices
Given two matrices, we will write a function that subtracts the given matrices.
Example
INPUT
A = { {1, 4, 7, 9},
{1, 6, 7, 6},
{6, 3, 7,...
Check if two given matrices are identical
Given two matrices, we will write a function to check whether the two matrices are identical or not. That is, if all the elements...