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feat(6-kyu): kata/cure-cancer (#623)
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,40 @@ | ||
| # [Cure Cancer](https://www.codewars.com/kata/cure-cancer "https://www.codewars.com/kata/5b4accacbdd07498aa000041") | ||
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| Now you are a doctor. | ||
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| You are working with a patient's **body** which has many cells. | ||
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| The patient's body is a matrix where every row represents a cell. | ||
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| Each cell contains just uppercase and lowercase letters, | ||
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| and every cell in the body should be the same. | ||
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| Oh, no! It seems that one of the cells have mutated! | ||
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| It is your job to locate the mutation so that the chemo specialists can fix it! | ||
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| return the location [i,j] within the matrix... | ||
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| before it's too late! :( | ||
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| example: | ||
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| cellscellscellscodecodecells | ||
| cellscellscellscodecodecells | ||
| cellscellscellscodecodecells | ||
| cellscellscellscodecodecells | ||
| cellscellscellscodecodecells | ||
| cellscellscellscodecodecells | ||
| cellscellscellscodecodecells | ||
| cellscellscellscodecodecells | ||
| cellscellscellscodecodecells | ||
| cellscellscellscodecadecells <- here it is! [20, 9] | ||
| cellscellscellscodecodecells | ||
| cellscellscellscodecodecells | ||
| cellscellscellscodecodecells | ||
| cellscellscellscodecodecells | ||
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| no bodies will have less than 3 cells. | ||
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| if the diagnosis was a false alarm, return an empty array. |
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| interface JomoPipi { | ||
| static int[] mutationLocation(char[][] body) { | ||
| for (int i = 1; i < body.length; i++) { | ||
| for (int j = 0; j < body[i].length; j++) { | ||
| if (body[0][j] != body[i][j]) { | ||
| return new int[]{i > 1 || body[0][j] == body[2][j] ? i : 0, j}; | ||
| } | ||
| } | ||
| } | ||
| return new int[0]; | ||
| } | ||
| } |
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| import static org.junit.jupiter.api.Assertions.assertArrayEquals; | ||
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| import org.junit.jupiter.api.Test; | ||
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| class SolutionTest { | ||
| @Test | ||
| void sample() { | ||
| assertArrayEquals(new int[0], JomoPipi.mutationLocation(new char[][]{ | ||
| "WellAndHealthy".toCharArray(), | ||
| "WellAndHealthy".toCharArray(), | ||
| "WellAndHealthy".toCharArray(), | ||
| "WellAndHealthy".toCharArray() | ||
| })); | ||
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| assertArrayEquals(new int[]{0, 4}, JomoPipi.mutationLocation(new char[][]{ | ||
| "thisssAsmallerPerson".toCharArray(), | ||
| "thisIsAsmallerPerson".toCharArray(), | ||
| "thisIsAsmallerPerson".toCharArray(), | ||
| "thisIsAsmallerPerson".toCharArray() | ||
| })); | ||
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| assertArrayEquals(new int[]{1, 4}, JomoPipi.mutationLocation(new char[][]{ | ||
| "thisIsAsmallerPerson".toCharArray(), | ||
| "thisssAsmallerPerson".toCharArray(), | ||
| "thisIsAsmallerPerson".toCharArray(), | ||
| "thisIsAsmallerPerson".toCharArray() | ||
| })); | ||
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| assertArrayEquals(new int[]{2, 4}, JomoPipi.mutationLocation(new char[][]{ | ||
| "thisIsAsmallerPerson".toCharArray(), | ||
| "thisIsAsmallerPerson".toCharArray(), | ||
| "thisssAsmallerPerson".toCharArray(), | ||
| "thisIsAsmallerPerson".toCharArray() | ||
| })); | ||
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| assertArrayEquals(new int[]{3, 4}, JomoPipi.mutationLocation(new char[][]{ | ||
| "thisIsAsmallerPerson".toCharArray(), | ||
| "thisIsAsmallerPerson".toCharArray(), | ||
| "thisIsAsmallerPerson".toCharArray(), | ||
| "thisssAsmallerPerson".toCharArray() | ||
| })); | ||
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| assertArrayEquals(new int[]{9, 14}, JomoPipi.mutationLocation(new char[][]{ | ||
| "someGreaTstuffIthinkThisIs".toCharArray(), | ||
| "someGreaTstuffIthinkThisIs".toCharArray(), | ||
| "someGreaTstuffIthinkThisIs".toCharArray(), | ||
| "someGreaTstuffIthinkThisIs".toCharArray(), | ||
| "someGreaTstuffIthinkThisIs".toCharArray(), | ||
| "someGreaTstuffIthinkThisIs".toCharArray(), | ||
| "someGreaTstuffIthinkThisIs".toCharArray(), | ||
| "someGreaTstuffIthinkThisIs".toCharArray(), | ||
| "someGreaTstuffIthinkThisIs".toCharArray(), | ||
| "someGreaTstuff1thinkThisIs".toCharArray(), | ||
| "someGreaTstuffIthinkThisIs".toCharArray(), | ||
| "someGreaTstuffIthinkThisIs".toCharArray(), | ||
| "someGreaTstuffIthinkThisIs".toCharArray(), | ||
| "someGreaTstuffIthinkThisIs".toCharArray(), | ||
| "someGreaTstuffIthinkThisIs".toCharArray(), | ||
| "someGreaTstuffIthinkThisIs".toCharArray() | ||
| })); | ||
| } | ||
| } |