#C6024. Detect Duplicates in a List

    ID: 49739 Type: Default 1000ms 256MiB

Detect Duplicates in a List

Detect Duplicates in a List

Given a list of integers, determine whether the list contains any duplicate numbers. Your task is to output True if duplicate values are present, and False otherwise.

The problem requires you to read input from standard input (stdin) and output the result to standard output (stdout). The input will start with an integer n indicating the number of elements in the list, followed by a line containing n space-separated integers.

Note: If the list is empty (i.e. n = 0), output False.

inputFormat

The input consists of two lines:

  • The first line contains a single integer n (n ≥ 0), representing the number of integers in the list.
  • The second line contains n space-separated integers. If n is 0, the second line will be empty.

outputFormat

Output a single line containing True if any duplicate exists in the list, otherwise output False.

## sample
5
1 2 3 4 5
False