Solution of Biweekly Contest 19

[Easy] [Pass]1342. Number of Steps to Reduce a Number to Zero

Solution is provided in another post

[Medium] [Pass] 1343. Number of Sub-arrays of Size K and Average Greater than or Equal to Threshold

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[Medium] [Pass]1344. Angle Between Hands of a Clock

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[Hard] [TLE]1345. Jump Game IV

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Rank: 2089 / 3745. Solved 3/4 in 1h 30min.