LeetCode 31xx
LeetCode problems 3100–3199
LeetCode 31xx
| # | Problem | Difficulty | Time | Notes |
|---|---|---|---|---|
| 3100 | Water Bottles II | 🟡 Medium | 1m 20s | This problem models a bottle exchange process where the exchange ra… |
| 3101 | Count Alternating Subarrays | 🟡 Medium | 1m 51s | The problem gives us a binary array nums, meaning every element is … |
| 3102 | Minimize Manhattan Distances | 🔴 Hard | 1m 41s | The problem asks us to minimize the maximum Manhattan distance betw… |
| 3103 | Find Trending Hashtags II | 🔴 Hard | 1m 38s | The problem gives us a database table named Tweets, where each row … |
| 3104 | Find Longest Self-Contained Substring | 🔴 Hard | 1m 50s | The problem asks us to find the longest self-contained substring in… |
| 3105 | Longest Strictly Increasing or Strictly Decreasing Subarray | 🟢 Easy | 1m 59s | The problem gives us an integer array nums and asks us to find the … |
| 3106 | Lexicographically Smallest String After Operations With Constraint | 🟡 Medium | 1m 25s | This problem asks us to transform a given string s into another str… |
| 3107 | Minimum Operations to Make Median of Array Equal to K | 🟡 Medium | 1m 34s | The problem asks us to transform an integer array so that its media… |
| 3108 | Minimum Cost Walk in Weighted Graph | 🔴 Hard | 1m 19s | This problem gives us an undirected weighted graph with n vertices … |
| 3109 | Find the Index of Permutation | 🟡 Medium | 1m 20s | The problem gives us a permutation perm of the integers [1, 2, ...,… |
| 3110 | Score of a String | 🟢 Easy | 59s | This problem asks us to compute the score of a string, where the sc… |
| 3111 | Minimum Rectangles to Cover Points | 🟡 Medium | 1m 13s | The problem gives us a collection of 2D points, where each point is… |
| 3112 | Minimum Time to Visit Disappearing Nodes | 🟡 Medium | 1m 1s | The problem describes an undirected weighted graph with n vertices,… |
| 3113 | Find the Number of Subarrays Where Boundary Elements Are Maximum | 🔴 Hard | 1m 8s | We are given an array nums of positive integers. We need to count h… |
| 3114 | Latest Time You Can Obtain After Replacing Characters | 🟢 Easy | 1m 13s | The problem gives us a string representing a time in 12-hour format… |
| 3115 | Maximum Prime Difference | 🟡 Medium | 1m 13s | The problem gives us an integer array nums, and we need to find the… |
| 3116 | Kth Smallest Amount With Single Denomination Combination | 🔴 Hard | 1m 2s | The problem asks us to determine the kth smallest amount that can b… |
| 3117 | Minimum Sum of Values by Dividing Array | 🔴 Hard | 1m 4s | This problem asks us to partition an array nums into exactly m cont… |
| 3118 | Friday Purchase III | 🟡 Medium | 54s | This problem asks us to calculate the total amount of money spent b… |
| 3119 | Maximum Number of Potholes That Can Be Fixed | 🟡 Medium | 1m 13s | We are given a road represented as a string containing only two cha… |
| 3120 | Count the Number of Special Characters I | 🟢 Easy | 46s | The problem asks us to count the number of special characters in a … |
| 3121 | Count the Number of Special Characters II | 🟡 Medium | 1m 12s | The problem gives us a string word containing uppercase and lowerca… |
| 3122 | Minimum Number of Operations to Satisfy Conditions | 🟡 Medium | 1m 1s | The problem presents a two-dimensional matrix grid of size m x n wi… |
| 3123 | Find Edges in Shortest Paths | 🔴 Hard | 1m 59s | The problem gives us an undirected weighted graph with n nodes and … |
| 3124 | Find Longest Calls | 🟡 Medium | 1m 26s | This problem asks us to analyze phone call records stored across tw… |
| 3125 | Maximum Number That Makes Result of Bitwise AND Zero | 🟡 Medium | 1m 26s | The problem asks us to find the largest integer x such that: - x <=… |
| 3126 | Server Utilization Time | 🟡 Medium | 1m 27s | This problem provides a table named Servers that records status cha… |
| 3127 | Make a Square with the Same Color | 🟢 Easy | 1m 13s | This problem gives us a fixed 3 x 3 grid containing only two possib… |
| 3128 | Right Triangles | 🟡 Medium | 1m 21s | The problem gives us a binary matrix grid, where each cell contains… |
| 3129 | Find All Possible Stable Binary Arrays I | 🟡 Medium | 1m 26s | In this problem, we need to count how many binary arrays can be for… |
| 3130 | Find All Possible Stable Binary Arrays II | 🔴 Hard | 1m 23s | The problem gives us three integers: - zero, the exact number of 0s… |
| 3131 | Find the Integer Added to Array I | 🟢 Easy | 1m 1s | The problem gives us two integer arrays, nums1 and nums2, which hav… |
| 3132 | Find the Integer Added to Array II | 🟡 Medium | 1m 16s | We are given two integer arrays, nums1 and nums2. The array nums2 w… |
| 3133 | Minimum Array End | 🟡 Medium | 1m 11s | The problem asks us to construct a strictly increasing array nums o… |
| 3134 | Find the Median of the Uniqueness Array | 🔴 Hard | 1m 20s | The problem defines a special array called the uniqueness array. Fo… |
| 3135 | Equalize Strings by Adding or Removing Characters at Ends | 🟡 Medium | 1m 20s | The problem gives us two strings, initial and target. We want to tr… |
| 3136 | Valid Word | 🟢 Easy | 1m 13s | The problem asks us to determine whether a given string qualifies a… |
| 3137 | Minimum Number of Operations to Make Word K-Periodic | 🟡 Medium | 1m | The problem asks us to transform a given string word of length n in… |
| 3138 | Minimum Length of Anagram Concatenation | 🟡 Medium | 1m 15s | The problem gives us a string s that was formed by concatenating se… |
| 3139 | Minimum Cost to Equalize Array | 🔴 Hard | 58s | This problem asks us to determine the minimum cost to make all elem… |
| 3140 | Consecutive Available Seats II | 🟡 Medium | 1m 43s | This problem asks us to analyze a cinema seating table and identify… |
| 3141 | Maximum Hamming Distances | 🔴 Hard | 54s | The problem asks us to compute the maximum Hamming distance for eac… |
| 3142 | Check if Grid Satisfies Conditions | 🟢 Easy | 1m 9s | The problem gives us a two dimensional matrix called grid with m ro… |
| 3143 | Maximum Points Inside the Square | 🟡 Medium | 1m 10s | The problem asks us to find the maximum number of points that can b… |
| 3144 | Minimum Substring Partition of Equal Character Frequency | 🟡 Medium | 1m 24s | In this problem, we are given a lowercase English string s, and we … |
| 3145 | Find Products of Elements of Big Array | 🔴 Hard | 59s | The problem asks us to work with a conceptual infinite array called… |
| 3146 | Permutation Difference between Two Strings | 🟢 Easy | 54s | The problem asks us to compute the permutation difference between t… |
| 3147 | Taking Maximum Energy From the Mystic Dungeon | 🟡 Medium | 1m 5s | The problem asks us to maximize the total energy gained from a sequ… |
| 3148 | Maximum Difference Score in a Grid | 🟡 Medium | 1m 42s | The problem gives us an m x n matrix called grid, where every cell … |
| 3149 | Find the Minimum Cost Array Permutation | 🔴 Hard | 51s | The problem presents an array nums of length n that is a permutatio… |
| 3150 | Invalid Tweets II | 🟢 Easy | 1m 10s | The problem gives us a database table named Tweets with two columns… |
| 3151 | Special Array I | 🟢 Easy | 1m 2s | The problem asks us to determine whether a given integer array is "… |
| 3152 | Special Array II | 🟡 Medium | 1m 22s | We are given an integer array nums and several queries. Each query … |
| 3153 | Sum of Digit Differences of All Pairs | 🟡 Medium | 1m 18s | The problem asks us to compute the total digit difference across ev… |
| 3154 | Find Number of Ways to Reach the K-th Stair | 🔴 Hard | 1m 8s | Let's dive into a comprehensive solution guide for LeetCode 3154 - … |
| 3155 | Maximum Number of Upgradable Servers | 🟡 Medium | 1m 23s | The problem requires calculating the maximum number of servers that… |
| 3156 | Employee Task Duration and Concurrent Tasks | 🔴 Hard | 1m 38s | The problem gives us a table named Tasks, where each row represents… |
| 3157 | Find the Level of Tree with Minimum Sum | 🟡 Medium | 1m 31s | The problem gives us the root of a binary tree, where every node co… |
| 3158 | Find the XOR of Numbers Which Appear Twice | 🟢 Easy | 6m 54s | This problem asks us to find all numbers in the array that appear e… |
| 3159 | Find Occurrences of an Element in an Array | 🟡 Medium | 1m 11s | The problem gives us three inputs: - An integer array nums - An int… |
| 3160 | Find the Number of Distinct Colors Among the Balls | 🟡 Medium | 1m 23s | The problem gives us limit + 1 balls labeled from 0 to limit. Initi… |
| 3161 | Block Placement Queries | 🔴 Hard | 1m 11s | The problem involves simulating operations on an infinite number li… |
| 3162 | Find the Number of Good Pairs I | 🟢 Easy | 1m 19s | The problem gives us two integer arrays, nums1 and nums2, along wit… |
| 3163 | String Compression III | 🟡 Medium | 1m 11s | The problem asks us to implement a specialized string compression a… |
| 3164 | Find the Number of Good Pairs II | 🟡 Medium | 1m 18s | We are given two integer arrays, nums1 and nums2, along with a posi… |
| 3165 | Maximum Sum of Subsequence With Non-adjacent Elements | 🔴 Hard | 1m 31s | This problem asks us to process a sequence of update queries on an … |
| 3166 | Calculate Parking Fees and Duration | 🟡 Medium | 1m 18s | This problem asks us to analyze parking transaction records and com… |
| 3167 | Better Compression of String | 🟡 Medium | 1m 19s | The problem gives us a compressed string where every character is i… |
| 3168 | Minimum Number of Chairs in a Waiting Room | 🟢 Easy | 1m 13s | The problem gives us a string s that represents events happening in… |
| 3169 | Count Days Without Meetings | 🟡 Medium | 1m 22s | The problem gives us a total number of working days, numbered from … |
| 3170 | Lexicographically Minimum String After Removing Stars | 🟡 Medium | 48s | The problem asks us to transform a string s that may contain the ''… |
| 3171 | Find Subarray With Bitwise OR Closest to K | 🔴 Hard | 58s | The problem asks us to find a subarray within a given array nums su… |
| 3172 | Second Day Verification | 🟢 Easy | 52s | The problem requires identifying users who verified their signup ex… |
| 3173 | Bitwise OR of Adjacent Elements | 🟢 Easy | 1m 6s | The problem gives us an integer array nums of length n. We must cre… |
| 3174 | Clear Digits | 🟢 Easy | 1m 1s | In this problem, we are given a string s that contains lowercase En… |
| 3175 | Find The First Player to win K Games in a Row | 🟡 Medium | 1m 6s | The problem describes a competition where players stand in a queue … |
| 3176 | Find the Maximum Length of a Good Subsequence I | 🟡 Medium | 1m 24s | We are given an integer array nums and a non-negative integer k. We… |
| 3177 | Find the Maximum Length of a Good Subsequence II | 🔴 Hard | 1m 23s | We are given an integer array nums and a non-negative integer k. We… |
| 3178 | Find the Child Who Has the Ball After K Seconds | 🟢 Easy | 52s | The problem asks us to simulate a game in which n children, numbere… |
| 3179 | Find the N-th Value After K Seconds | 🟡 Medium | 1m 1s | The problem requires computing the value of the last element in an … |
| 3180 | Maximum Total Reward Using Operations I | 🟡 Medium | 1m 2s | The problem asks us to maximize a running total reward by selecting… |
| 3181 | Maximum Total Reward Using Operations II | 🔴 Hard | 1m 29s | The problem gives us an array rewardValues, where each element repr… |
| 3182 | Find Top Scoring Students | 🟡 Medium | 1m 30s | The problem gives us three relational database tables: - students, … |
| 3183 | The Number of Ways to Make the Sum | 🟡 Medium | 1m 5s | The problem asks us to determine the number of distinct ways to sum… |
| 3184 | Count Pairs That Form a Complete Day I | 🟢 Easy | 56s | The problem asks us to find all pairs of indices (i, j) in an array… |
| 3185 | Count Pairs That Form a Complete Day II | 🟡 Medium | 46s | The problem asks us to count pairs of elements in an integer array … |
| 3186 | Maximum Total Damage With Spell Casting | 🟡 Medium | 1m 22s | The problem gives us an array power, where each element represents … |
| 3187 | Peaks in Array | 🔴 Hard | 1m 29s | The problem asks us to process two kinds of operations on an intege… |
| 3188 | Find Top Scoring Students II | 🔴 Hard | 1m 18s | This problem asks us to identify students who satisfy a combination… |
| 3189 | Minimum Moves to Get a Peaceful Board | 🟡 Medium | 1m 7s | In this problem, we are given the positions of n rooks placed on an… |
| 3190 | Find Minimum Operations to Make All Elements Divisible by Three | 🟢 Easy | 1m 12s | The problem gives us an integer array nums. In one operation, we ar… |
| 3191 | Minimum Operations to Make Binary Array Elements Equal to One I | 🟡 Medium | 1m 33s | We are given a binary array nums consisting only of 0s and 1s. We a… |
| 3192 | Minimum Operations to Make Binary Array Elements Equal to One II | 🟡 Medium | 51s | This problem asks us to take a binary array nums, which contains on… |
| 3193 | Count the Number of Inversions | 🔴 Hard | 1m 33s | The problem asks us to count how many permutations of the numbers [… |
| 3194 | Minimum Average of Smallest and Largest Elements | 🟢 Easy | 1m 3s | The problem gives us an even-length integer array nums. We repeated… |
| 3195 | Find the Minimum Area to Cover All Ones I | 🟡 Medium | 58s | The problem asks us to find the smallest rectangle that covers all … |
| 3196 | Maximize Total Cost of Alternating Subarrays | 🟡 Medium | 3m 29s | The problem gives us an integer array nums, and we must divide the … |
| 3197 | Find the Minimum Area to Cover All Ones II | 🔴 Hard | 1m 31s | The problem gives us a binary matrix grid, where each cell contains… |
| 3198 | Find Cities in Each State | 🟢 Easy | 1m 31s | This problem provides a database table named cities, where each row… |
| 3199 | Count Triplets with Even XOR Set Bits I | 🟢 Easy | 1m 18s | The problem gives us three integer arrays, a, b, and c. We must cou… |