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나는 이렇게 학습한다/Algorithm & SQL405

0829. Holiday VIII - Duty Free The purpose of this kata is to work out just how many bottles of duty free whiskey you would have to buy such that the saving over the normal high street price would effectively cover the cost of your holiday. You will be given the high street price (normPrice), the duty free discount (discount) and the cost of the holiday. For example, if a bottle cost £10 normally and the discount in duty free.. 2022. 8. 29.
0828. Basic Mathematical Operations Your task is to create a function that does four basic mathematical operations. The function should take three arguments - operation(string/char), value1(number), value2(number). The function should return result of numbers after applying the chosen operation. Examples(Operator, value1, value2) --> output ('+', 4, 7) --> 11 ('-', 15, 18) --> -3 ('*', 5, 5) --> 25 ('/', 49, 7) --> 7 Solution: def.. 2022. 8. 28.
0827. Sum Arrays Write a function that takes an array of numbers and returns the sum of the numbers. The numbers can be negative or non-integer. If the array does not contain any numbers then you should return 0. Examples Input: [1, 5.2, 4, 0, -1] Output: 9.2 Input: [] Output: 0 Input: [-2.398] Output: -2.398 Assumptions You can assume that you are only given numbers. You cannot assume the size of the array. You.. 2022. 8. 27.
0826. A wolf in sheep's clothing Wolves have been reintroduced to Great Britain. You are a sheep farmer, and are now plagued by wolves which pretend to be sheep. Fortunately, you are good at spotting them. Warn the sheep in front of the wolf that it is about to be eaten. Remember that you are standing at the front of the queue which is at the end of the array: [sheep, sheep, sheep, sheep, sheep, wolf, sheep, sheep] (YOU ARE HER.. 2022. 8. 26.
0825. Find the first non-consecutive number Your task is to find the first element of an array that is not consecutive. By not consecutive we mean not exactly 1 larger than the previous element of the array. E.g. If we have an array [1,2,3,4,6,7,8] then 1 then 2 then 3 then 4 are all consecutive but 6 is not, so that's the first non-consecutive number. If the whole array is consecutive then return null2. The array will always have at leas.. 2022. 8. 25.
0824. N-th Power This kata is from check py.checkio.org You are given an array with positive numbers and a non-negative number N. You should find the N-th power of the element in the array with the index N. If N is outside of the array, then return -1. Don't forget that the first element has the index 0. Let's look at a few examples: array = [1, 2, 3, 4] and N = 2, then the result is 3^2 == 9; array = [1, 2, 3] .. 2022. 8. 24.

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