Problem · Math
Integer to String Without Built-ins
Learn this problemProblem statement
Complete the function below. The function receives the full standard input as a single string and returns the exact standard output lines.
Problem
Implement itoa: given signed 32-bit integers, convert each integer to its base-10 string representation without using built-in number-to-string conversion helpers.
For each input integer, output the converted decimal string. Negative numbers must include a leading -. The value 0 must return 0.
Function
solveIntegerToString(input: String) → String[]Complete solveIntegerToString. It has one parameter, String input, containing one signed integer per line. Return the stdout payload as an array of lines, without trailing newline characters.
Examples
Example 1
input = "0\n42\n-17\n2147483647\n-2147483648"return = ["0","42","-17","2147483647","-2147483648"]Each integer is converted to its exact decimal string representation.
Constraints
Each value fits in a signed 32-bit integer.