5. Write a program to remove any duplicate letters from a word and display the new word maintaining the original order. For example, bananas would become bans and bookkeeper would become bokepr. You may not use any special unique commands!

The following function returns a string of length n whose characters are all 'x'. give the order of growth (as a function of n) of the running time. recall that concatenating two strings in java takes time proportional to the sum of their lengths. public static string f(int n) { if (n == 0) return ""; if (n == 1) return "x"; return f(n/2) + f(n - n/2); } options: a) constant b) logarithmic c) linear d) linearithmic e)quadratic f)cubic g) exponential

Avirus enters a computer or network as code embedded in other software directly from another computer

Which key should you press to leave the cell as it originally was? a. delete b. cancel c. backspace d. enter