摘要：
Description: Given string A representative a positive integer which has N digits, remove any k digits of the number, the remaining digits are arrange... 阅读全文
摘要：
Description: Given two 32 bit numbers, N and M, and two bit positions, i and j. Write a method to set all bits between i and j in N equal to M (e g ,... 阅读全文
摘要：
Description: Given an array of n positive integers and a positive integer s, find the minimal length of a subarray of which the sum ≥ s. If there isn... 阅读全文