<Codesignal> isDigit

Easy

Determine if the given character is a digit or not.

Example

• For symbol = '0', the output should be
  isDigit(symbol) = true;
• For symbol = '-', the output should be
  isDigit(symbol) = false.

Input/Output

• [execution time limit] 0.5 seconds (c)

• [input] char symbol

  A character which is either a digit or not.

  Guaranteed constraints:
  Given symbol is from ASCII table.

• [output] boolean

  • true if symbol is a digit, false otherwise.

[C] Syntax Tips

// Prints help message to the console
// Returns a string
char * helloWorld(char * name) {
    char * answer = malloc(strlen(name) + 8);
    printf("This prints to the console when you Run Tests");
    strcpy(answer, "Hello, ");
    strcat(answer, name);
    return answer;
}

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Solution

bool isDigit(char symbol)
{
	return isdigit(symbol);
}