https://leetcode.com/problems/minimum-domino-rotations-for-equal-row/description/
Min swaps to make a top or bottom row #medium
Min swaps to make a top or bottom row #medium
👍3
Ways to fill 2xn board with I,L shapes #medium #dp
https://leetcode.com/problems/domino-and-tromino-tiling/description/
https://leetcode.com/problems/domino-and-tromino-tiling/description/
👍3
https://leetcode.com/problems/find-minimum-time-to-reach-last-room-i/description
Fastest path in graph #medium #bfs
Fastest path in graph #medium #bfs
👍2
https://leetcode.com/problems/find-minimum-time-to-reach-last-room-ii/description/
Fastest travel in graph, alternating dt=1,2 #medium #bfs
Fastest travel in graph, alternating dt=1,2 #medium #bfs
👍3
Permutations of even-odd position sums equal #hard #dp #math
https://leetcode.com/problems/count-number-of-balanced-permutations/description/
https://leetcode.com/problems/count-number-of-balanced-permutations/description/
👍2
https://leetcode.com/problems/minimum-equal-sum-of-two-arrays-after-replacing-zeros/description/
Min equal array sum, fill zeros #medium
Min equal array sum, fill zeros #medium
👍2
Triple digit even numbers from digits #easy #backtrack
https://leetcode.com/problems/finding-3-digit-even-numbers/description
https://leetcode.com/problems/finding-3-digit-even-numbers/description
👍2
String length after t shifts c=c+1,
https://leetcode.com/problems/total-characters-in-string-after-transformations-i/description
z
=ab
#medium #dphttps://leetcode.com/problems/total-characters-in-string-after-transformations-i/description
👍2
t
steps to convert char into next nums[c] chars #hard #dp #mathhttps://leetcode.com/problems/total-characters-in-string-after-transformations-ii/description
👍2
https://leetcode.com/problems/longest-unequal-adjacent-groups-subsequence-i/description
Longest subsequence alterating g #easy #gready
Longest subsequence alterating g #easy #gready
👍2🔥1
https://leetcode.com/problems/longest-unequal-adjacent-groups-subsequence-ii/description
Longest subsequence humming distance 1, alterating groups #medium #dp
Longest subsequence humming distance 1, alterating groups #medium #dp
👍2
https://leetcode.com/problems/painting-a-grid-with-three-different-colors/description
Ways to 3-color m*n grid, no adjucents #hard #dp #matrix
Ways to 3-color m*n grid, no adjucents #hard #dp #matrix
👍3
https://leetcode.com/problems/zero-array-transformation-i/description/
Can intersecting intervals decrease an array #medium #line_sweep
Can intersecting intervals decrease an array #medium #line_sweep
👍2
https://leetcode.com/problems/zero-array-transformation-iii/description
Max removed queries still zero-fy an array #medium #heap
Max removed queries still zero-fy an array #medium #heap
👍2
https://leetcode.com/problems/find-the-maximum-sum-of-node-values/description/
Max sum by k-xoring edges #hard #tree #dp
Max sum by k-xoring edges #hard #tree #dp
👍2