<Codesignal> alphabeticShift

Easy

Given a string, your task is to replace each of its characters by the next one in the English alphabet; i.e. replace a with b, replace b with c, etc (z would be replaced by a).

Example

For inputString = "crazy", the output should be alphabeticShift(inputString) = "dsbaz".

Input/Output

• [execution time limit] 0.5 seconds (c)

• [input] string inputString

  A non-empty string consisting of lowercase English characters.

  Guaranteed constraints:
  1 ≤ inputString.length ≤ 1000.

• [output] string

  • The resulting string after replacing each of its characters.

[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;
}

---

Solution

char *alphabeticShift(char *inputString)
{
	for(int i=0;i<strlen(inputString);i++)
	{
		inputString[i]++;
		if(!isalpha(inputString[i]))
			inputString[i]-=26;
	}

	return inputString;
}