Let x, y, N E N be n-bit integers such that N > 2. . If x < N, the value x" mod N can be computed using the following recursive formula: x" mod N = x ged(x, y) = The number of bit operations when using this method is O(.....). • If x ≥ y, the value gcd(x, y) can be computed using the following recursive formula: , if y = 0 , if y ≥ 1 , if y = 0 , if y = 1 , if y ≥ 2 even , if y ≥ 2 odd The number of bit operations when using this method is O(.....).

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