DSA

20.5K+ posts

Last Updated: 07 September 2026

Given two integers n and k, where there are n houses arranged in a row and each house contains k amount of money, find the maximum amount of money a thief can rob without ...read more

DSA

Summed Matrix

Last Updated: 06 September 2026

Given two integers n and q, consider a n * n matrix where the value of each cell (i, j) is i + j, with both row and column indices starting from 1. Return the number of ce...read more

DSA

Evaluate Formulae

Last Updated: 07 September 2026

Given four integer variables a, b, c, and d, write a single expression to evaluate the following formula:\frac{a + b}{c} + dUse integer division while evaluating the expre...read more

DSA

Minimum Squares with Full Cuts

Last Updated: 06 September 2026

Given a rectangular paper with dimensions n × m, find the minimum number of squares that can be formed by cutting the paper. Each cut must be made completely across the r...read more

DSA

Occurrences of Consecutive 3 Numbers

Last Updated: 06 September 2026

Given an integer array arr[], count the number of distinct special integers. An integer x is called a special integer if x - 1, x, and x + 1 are all present in the array. ...read more

DSA

Number of Matches

Last Updated: 06 September 2026

There are n players participating in a knockout tournament. The rating of the i-th player is given by arr[i], where all ratings are distinct.The tournament is conducted in...read more

DSA

Arrays

Longest Colored Path

Last Updated: 05 September 2026

Given an undirected acyclic graph (tree) with n nodes numbered from 1 to n. Each node is colored either Red (R) or Blue (B).The colors of the nodes are given by a string s...read more

Minimum Colors Required in Special DAG

Last Updated: 06 September 2026

Given a Directed Acyclic Graph (DAG) with V vertices and E edges represented by a 2D array edges[][], where edges[i] = {u, v} represents a directed edge from vertex u to v...read more

DSA

Students with Max Average

Last Updated: 03 September 2026

Given a string array names[] containing the names of n students and a 2D integer array marks[][], where marks[i] contains the marks of the i-th student in three subjects, ...read more

DSA

Jumping Numbers

Last Updated: 01 September 2026

Given a positive number, n, find the largest Jumping Number that is smaller than or equal to n. A number is called a Jumping Number if all adjacent digits in it differ by ...read more

DSA

Minimum Time to Finish Project with Dependencies

Last Updated: 31 August 2026

A company is working on a large project consisting of n modules. The time required (in months) to complete the ith module is stored in the array duration[]. The array depe...read more

DSA

Replace a Substring with Spaces

Last Updated: 07 September 2026

An encoded string s consists of uppercase English letters. The string is formed by inserting the substring "LIE" at different positions in a secret message. Extract the or...read more

DSA

Maximum Height Stack of Discs

Last Updated: 01 September 2026

Given two arrays r[] and h[] of same size, where r[i] and h[i] represent the radius and height of the i-th disc.A disc can be placed above another disc only if both its ra...read more

DSA

Longest Route Between Tunnels

Last Updated: 07 September 2026

Given n tunnels connected by n - 1 tunnels in the form of a tree (connected and acyclic).Each tunnel connection is represented by three integers u, v, and w, where u and v...read more

DSA

Gift Distribution According to Preference

Last Updated: 31 August 2026

Given a 2D array arr[][] containing the preference lists of all students, where each row represents the preference list of a student in rank order. The first gift in each ...read more

DSA

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