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Given a string, sort it in decreasing order based on the frequency of characters. Example 1: Input: "tree" Output:

2018-08-26 01:44:13

In LLP world, there is a hero called Teemo and his attacking can make his enemy Ashe be in poisoned condition. Now,

2018-08-26 01:44:13

Given a positive integer, output its complement number. The complement strategy is to flip the bits of its binary rep

2018-08-26 01:44:13

Given an array of integers where 1 ≤ a[i] ≤ n (n = size of array), some elements appear twice and others appear once.

2018-08-26 01:44:13

Given a List of words, return the words that can be typed using letters of alphabet on only one row's of American keyb

2018-08-26 01:44:13

Given an array of integers, 1 ≤ a[i] ≤ n (n = size of array), some elements appear twice and others appear once. Find

2018-08-26 01:44:13

Given scores of N athletes, find their relative ranks and the people with the top three highest scores, who will be aw

2018-08-26 01:44:13