[python] codeSignal 문제풀이 (1~3)

1. Write a function that returns the sum of two numbers.

 

Example) For param1 = 1 and param2 = 2, the output should be add(param1, param2) = 3.

 

def add(param1, param2):
    return param1 + param2

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2. Given a year, return the century it is in. The first century spans from the year 1 up to and including the year 100, the second - from the year 101 up to and including the year 200, etc.

 

Example)

• For year = 1905, the output should be centuryFromYear(year) = 20;
• For year = 1700, the output should be centuryFromYear(year) = 17.

def centuryFromYear(year):
    return (year-1) // 100 + 1

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3. Given the string, check if it is a palindrome.

 

Example)

• For inputString = "aabaa", the output should be checkPalindrome(inputString) = true;
• For inputString = "abac", the output should be checkPalindrome(inputString) = false;
• For inputString = "a", the output should be checkPalindrome(inputString) = true.

def checkPalindrome(inputString):
    return inputString == inputString[::-1]

 

- palindrome : Apalindromeis a string that reads the same left-to-right and right-to-left.

- [start : end : step] 사용 방법 : step 양수 - step만큼 오른쪽으로 이동 /  step 음수 - step만큼 왼쪽으로 이동

 

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