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Algorithm for finding the greatest common divisor of N (1~20) integers (1~200000) entered.

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This is a description of an algorithm to find the greatest common divisor of N (120) integers. The algorithm uses bitwise operations to optimize the calculation and has a time complexity of O(n) in the best case and O(Log2^C * N) in the worst case, where C is the largest number among the input integers. This algorithm was developed by the Salt City Normal University Software Association ACM/ICPC.

Algorithm for finding the greatest common divisor of N (1~20) integers (1~200000)
Yancheng Normal University Software Association ACM/ICPC Questions
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Explanation:
The algorithm uses optimization of bitwise operations to reduce the cost of MOD and division operations
The result is obtained in one traversal
The algorithm has a time complexity of O(n) and a worst-case complexity of O(Log2^C *N), where C is the largest number among all the numbers

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