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// https://leetcode.com/problems/day-of-the-year/description/

// https://leetcode.com/problems/number-of-days-between-two-dates/description/

GCD is greatest common divisor // naive approach // more elegant way // least common multiple

To convert a binary number to an integer mathematically, you can use the following formula: Formula Given a binary number bbb with digits bk,bk−1,…,b1,b0b_k, b_{k-1}, …, b_1, b_0bk​,bk−1​,…,b1​,b0​, where bib_ibi​ is the bit at position iii (0 for least significant … Continue reading →

// https://leetcode.com/problems/binary-prefix-divisible-by-5/description/ Also Binary Input as Array If the binary is given as an array of integers (e.g., [1, 0, 1, 1]):

// https://leetcode.com/problems/shortest-distance-to-target-string-in-a-circular-array/

// right // left // left // right

// https://leetcode.com/problems/second-largest-digit-in-a-string/description/

another example with shifting of array

/** * https://leetcode.com/problems/determine-whether-matrix-can-be-obtained-by-rotation/description/ */ to rotate matrix 90 degrees clockwise we have to transpose and flip it Example