Q1. shift all 1's in a binary representation of a number to left side. ex. 1010 = 10 convert it to 1100 = 12 Q2. Question related to fork; number of hello printed by the below program printf("hello"); fork(); printf("hello"); fork(); printf("hello"); Q3. Reverse words in a string. ex. given string: "this is the dummy string" output string: "string dummy the is this"