Consider Problem-19. Let us assume that the numbers are in the range 1 to n. Is there any other way of solving the problem? Similar to Problem-19, let us assume that the numbers are in the range 1 to...

Consider Problem-19. Let us assume that the numbers are in the range 1 to n. Is there any other way of solving the problem?

Similar to Problem-19, let us assume that the numbers are in the range 1 to n. Also, n− 1 elements are repeated thrice and the remaining element repeated twice. Find the element which repeated twice.