Reverse all the characters in a string before you encounter an 'x'. abcdxdd - > dcbaxdd
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Reverse the string
int Solve(string str); Given the signature above, implement the simplest method that returns the results of the following arguments: 1. “3+5” (8) 2. “10+2-8” (4) 3. “5+10*3” (35) 4. “3+5--6" (14)
Group of people, you can call Know(i,j) to ask if ith person knows jth, the return value is true (i knows j) or false (i does not know j). Find the person that everybody else knows him but he knows nobody.
Given length of 3 sides as input, tell whether they form a valid triangle or not. Write all possible test cases to check your algo..
Delete n-th element from linked list. Note, you don't have a pointer to the Head of the list.
Given the definition of a Fibonacci sequence, write a function to give the n-th term of the sequence.
finad all plaindromes ina string.
Pick out k random elements from a very long linked list
with that go like this: you have an array of string you should print all the word by group. group define: by the same letters and the same number of repeated letter like example: dad,add,dda in same group it should be in O(N)
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