Thursday, February 20, 2020
Check length of a string is equal to the number appended at its last

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

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

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

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 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

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 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

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

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

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

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

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

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...