Credential managers have robust mechanisms to protect your vault data with multiple methods, such as master passwords, per-device keys, recovery keys, and social recovery keys.
After six agonising minutes, Jack Swigert's voice cut through the silence.
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描述：找出一个连续子数组，若对该子数组升序排序，则整个数组变为升序。返回符合题意的最短子数组长度。