Google Online Assessment (OA) 2021 | Create String

You are given an integer n and a list of integers with size m, and you are asked to produce a string with length n with the following requirements: For 0 <= i < n, if i is in the list, then the character at position i is a plus sign (+). Otherwise, it is a minus sign (-).

Parameter

• n: An integer representing the size of the string.
• int_list: A list of integers.

Result

• The desired string according to the specifications.

Examples

Example 1:

Input: n = 5, int_list = [2, 4]

Output: "--+-+"

Constraints

• 1 <= n <= 10^5
• 0 <= m <= 10^5

Try it yourself

Solution