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Tag Archives: Hash

Given two arrays arr1[] and arr2[] of sizes N and M where 0 ≤ arr1[i], arr2[i] ≤ 1000 for all valid i, the task is… Read More
Given a string S and a range [L, R]. The task is to find the number of ways in which the sub-string in the range… Read More
Given an integer K and an array arr[], the task is to count all the sub-arrays whose product is divisible by K.Examples:   Input: arr[] =… Read More
Given an array arr[], the task is to count the maximum count of pairs that give the same sum. Examples:  Input: arr[] = {1, 2,… Read More
Given the integer values of N and K. The task is to find the number of pairs from the set of natural numbers up to… Read More
Given an array A[] and positive integer K, the task is to count the total number of pairs in the array whose sum is divisible… Read More
Given an array of N integers and an integer K. The task is to print the maximum number of pairs(a[i]+a[j]) possible which are divisible by… Read More
Given an array arr[] of N distinct integers. The task is to find the sum of two array integers a[i] + a[j] which occurs maximum… Read More
Given two strings s1 and s2. The task is to take one character from the first string and one character from the second string and… Read More
Given an array arr[] of N integer elements and an integer K. The task is to count all distinct arr[i] such that arr[i] appears at… Read More
Given N bracket sequences, the task is to find the number of pairs of bracket sequences by joining which can be obtained a balanced bracket… Read More
Given an array of integers arr[], the task is to count all the pairs (arr[i], arr[j]) such that i + j = arr[i] + arr[j]… Read More
Given an array arr[], the task is to find the sum of all those elements from the given array whose square root is present in… Read More
Merkle tree also known as hash tree is a data structure used for data verification and synchronization. It is a tree data structure where each non-leaf… Read More
Given a string containing lowercase English alphabets. The task is to find the minimum number of characters needed to be removed so that the remaining string… Read More

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