rudrankriyam

func removeElement(_ nums: inout [Int], _ val: Int) -> Int {
    var left = 0
    var right = nums.count

    while left < right {
        if nums[left] == val {
            nums[left] = nums[right - 1]
            right -= 1
        } else {
            left += 1

rudrankriyam

func buddyStrings(_ A: String, _ B: String) -> Bool {
    if A.count != B.count { return false }

    var A = Array(A), B = Array(B)

    if A == B {
        return A.count > Set(A).count 
    } else {
        return differentLetters(A, B)
    }

rudrankriyam

func hammingDistance(_ x: Int, _ y: Int) -> Int {
    var hammingDistance = x ^ y
    var counter = 0

    while hammingDistance > 0 {
        hammingDistance &= (hammingDistance - 1)
        counter += 1
    }
    return counter 
}

rudrankriyam

func singleNumber(_ nums: [Int]) -> Int {
    var set = Set<Int>()
    for number in nums {
        if !set.contains(number) {
            set.insert(number)
        } else { 
            set.remove(number) 
        }
    }
    return set.first ?? 0

rudrankriyam

struct BarButtonView: View {
    var imageName: String
    var accessibilityName: String

    var body: some View {
        Image(systemName: imageName)
            .resizable()
            .font(.system(size: 25))
            .foregroundColor(.primary)

rudrankriyam

struct VerticalGrid: View {
  var columns: [GridItem] =
    Array(repeating: .init(.flexible()), count: 2)

  var body: some View {
    NavigationView {
      ScrollView(.vertical) {
        LazyVGrid(columns: columns) {
          ForEach((1...18), id: \.self) { number in
            ImageView(number: number)

rudrankriyam

struct HorizontalGrid: View {
  var rows: [GridItem] =
    Array(repeating: .init(.flexible()), count: 3)

  var body: some View {
    NavigationView {
      ScrollView(.horizontal) {
        LazyHGrid(rows: rows) {
          ForEach((1...18), id: \.self) { number in
            ImageView(number: number)

rudrankriyam

struct ContentView: View {
  @State private var currentTab: Int = 0

  var body: some View {
    TabView(selection: $currentTab) {
      VerticalGrid()
        .tabItem {
          Image(systemName: "rectangle.grid.3x2")
          Text("Vertical")
        }

rudrankriyam

struct ToolbarButton: View {
    var imageName: String
    var accessibilityLabel: String
    var accessibilityHint: String
    var action: (()->()) = {}

    var body: some View {
        Button(action: action) {
            Image(systemName: imageName)
                .font(.headline)

rudrankriyam

import SwiftUI

struct MainView : View {
    @State private var currentTab: Int = 1

    var body: some View {
        TabView(selection: $currentTab) {
            RGBView()
                .tabItem {
                    Image(systemName: "circle.grid.hex")