## [Solved] Determine if a Cell Is Reachable at a Given Time Solution Leetcode

Determine if a Cell Is Reachable at a Given Time Solution Leetcode User Accepted:9542 User Tried:13802 Total Accepted:10049 Total Submissions:56361 Difficulty:Medium You are given four integers sx, sy, fx, fy, and a non-negative integer t. In an infinite 2D grid, you start at the cell (sx, sy). Each second, you must move to any of its adjacent cells. Return true if you can reach cell (fx, fy) after exactly t seconds, or false otherwise. A […]

## Last Man Standing Solution codeforces

Last Man Standing Solution codeforces Last Man Standing time limit per test 7 seconds memory limit per test 512 megabytes input standard input output standard output There are n� heroes in a videogame. Each hero has some health value hℎ and initial armor value a�. Let the current value of armor be acur����, initially equal to a�. When x� points of damage are inflicted […]

## Interactive Game with Coloring solution codeforces

Interactive Game with Coloring solution codeforces Then, the game begins. At the start of each move, the jury program prints one of the following: one integer 11 on a separate line, indicating that the chip has reached the root and you won; one integer −1−1 on a separate line, indicating that either you didn’t reach the root in d� moves and […]

## [solution] Sum of XOR Functions solution codeforces

Sum of XOR Functions solution codeforces time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output You are given an array a� of length n� consisting of non-negative integers. You have to calculate the value of ∑nl=1∑nr=lf(l,r)⋅(r−l+1)∑�=1�∑�=���(�,�)⋅(�−�+1), where f(l,r)�(�,�) is al⊕al+1⊕⋯⊕ar−1⊕ar��⊕��+1⊕⋯⊕��−1⊕�� (the character ⊕⊕ denotes bitwise XOR). Since the answer can be very large, print it modulo 998244353998244353. Input […]

## (Solved) Make it Alternating solution codeforces

Make it Alternating time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output You are given a binary string s�. A binary string is a string consisting of characters 0 and/or 1. You can perform the following operation on s� any number of times (even zero): choose an integer i� such that 1≤i≤|s|1≤�≤|�|, then erase the character si��. […]

## {solution} Chips on the Board solution codeforces

Chips on the Board time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output You are given a board of size n×n�×� (n� rows and n� colums) and two arrays of positive integers a� and b� of size n�. Your task is to place the chips on this board so that the following condition is satisfied for […]

## Rigged solution codeforces – There are n� athletes participating in the competition, the i�-th athlete has strength si�� and endurance ei��

Rigged solution codeforces! time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Monocarp organizes a weightlifting competition. There are n� athletes participating in the competition, the i�-th athlete has strength si�� and endurance ei��. The 11-st athlete is Monocarp’s friend Polycarp, and Monocarp really wants Polycarp to win. The competition will be conducted […]

## [Solution] Maximum Number of Alloys Solution  Leetcode

2861. Maximum Number of Alloys Solution  Leetcode User Accepted:2396 User Tried:4508 Total Accepted:2509 Total Submissions:10723 Difficulty:Medium You are the owner of a company that creates alloys using various types of metals. There are n different types of metals available, and you have access to k machines that can be used to create alloys. Each machine requires a specific amount […]

## [solution] Happy Students Solution Leetcode

2860. Happy Students Solution Leetcode User Accepted:6768 User Tried:9557 Total Accepted:7029 Total Submissions:18150 Difficulty:Medium You are given a 0-indexed integer array nums of length n where n is the total number of students in the class. The class teacher tries to select a group of students so that all the students remain happy. The ith student will become happy if one of these two conditions […]

## [Soluton] Sum of Values at Indices With K Set Bits Solution Leetcode

2859. Sum of Values at Indices With K Set Bits Solution Leetcode User Accepted:14408 User Tried:15287 Total Accepted:14939 Total Submissions:18073 Difficulty:Easy You are given a 0-indexed integer array nums and an integer k. Return an integer that denotes the sum of elements in nums whose corresponding indices have exactly k set bits in their binary representation. The set bits in an integer are the 1‘s present when it is written in binary. For […]