LC 3286. Find a Safe Walk Through a Grid
https://leetcode.com/problems/find-a-safe-walk-through-a-grid/description/
class Solution {
public:
int dr[4] = {-1, 1, 0, 0};
int dc[4] = {0, 0, -1, 1};
bool findSafeWalk(
LC 3376. Minimum Time to Break Locks I
https://leetcode.com/problems/minimum-time-to-break-locks-i/description/
class Solution {
public:
int findMinimumTime(vector<int>& strength, int k) {
int n = strength.size();
vector<
LC 5. Longest Palindromic Substring
class Solution {
public:
string longestPalindrome(string s) {
int n = s.size();
vector<vector<bool>> f(n, vector<bool>(n,
LC 120. Triangle
https://leetcode.com/problems/triangle/description/?envType=study-plan-v2&envId=top-interview-150
class Solution {
public:
int minimumTotal(vector<vector<int>>& triangle)
LC 322. Coin Change
https://leetcode.com/problems/coin-change/?envType=study-plan-v2&envId=top-interview-150
class Solution {
public:
int coinChange(vector<int>& coins, int amount) {
int n