LC 3250. Find the Count of Monotonic Pairs I
https://leetcode.com/problems/find-the-count-of-monotonic-pairs-i/description/
Tag: DP
Rate: 1897
typedef long long ll;
class Solution {
public:
int countOfPairs(vector<int>& nums)
LeetCode
LC 1368. Minimum Cost to Make at Least One Valid Path in a Grid
https://leetcode.com/problems/minimum-cost-to-make-at-least-one-valid-path-in-a-grid/description/?envType=daily-question&envId=2025-01-18
Tag: 0-1 BFS
class Solution {
public:
int dr[5] = {0, 0, 0, 1, -1}
LC 3366. Minimum Array Sum
https://leetcode.com/problems/minimum-array-sum/description/
Tag: DP
class Solution {
public:
int twoOp(int num, int k) {
if (ceil(1.0 * num / 2) < k)
LC 3187. Peaks in Array
https://leetcode.com/problems/peaks-in-array/description/
Tag: Segment Tree
Rate: 2154
class Solution {
public:
int seg[100010 << 2];
void update(int node, int
LC 3298. Count Substrings That Can Be Rearranged to Contain a String II
https://leetcode.com/problems/count-substrings-that-can-be-rearranged-to-contain-a-string-ii/description/
Tag: Two Pointer
typedef long long ll;
class Solution {
public:
long long validSubstringCount(string word1, string word2) {
int n