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<\/a><\/figure>\nProblem<\/strong><\/p>\n A left rotation operation on an array shifts each of the array’s elements 1 unit to the left. For example, if 2 left rotations are performed on an array Given an array a of n integers and a number, d perform d left rotations on the array. Return the updated array to be printer as a single line of space-separated integers.<\/p>\n Function Description<\/strong><\/p>\n Complete the function rotLeft in the editor below.<\/p>\n rotLeft has the following parameter(s):<\/p>\n Returns<\/strong><\/p>\n Input Format<\/strong><\/p>\n Constraints<\/strong><\/p>\n Solution<\/strong><\/p>\n Problem A left rotation operation on an array shifts each of the array’s elements 1 unit to the left. For example, if 2 left rotations are performed on an array [1,2,3,4,5], then the array would become [3,4,5,1,2]. Note that the … Continue reading [1,2,3,4,5]<\/code>, then the array would become [3,4,5,1,2]<\/code>. Note that the lowest index item move to the highest index in a rotation. This is called circular array.<\/p>\n\n
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1 <= n <= 105<\/sup><\/code><\/li>\n1 <= d <= n<\/code><\/li>\n1 <= a[i] <=106<\/sup><\/code><\/li>\n<\/ul>\n<\/figure>\npackage org.span;\n\nimport java.io.IOException;\n\npublic class ArrayLeftRotation {\n\n static int[] rotLeft(int[] a, int d) {\n for (int i = 0; i < d; i++) {\n int t = a[0];\n System.arraycopy(a, 1, a, 0, a.length - 1);\n a[a.length - 1] = t;\n }\n return a;\n }\n\n public static void main(String[] args) throws IOException {\n int d = 4;\n int[] a = {1, 2, 3, 4, 5};\n int[] result = rotLeft(a, d);\n print(result);\n }\n\n\n public static void print(int[] a) {\n for (int i = 0; i < a.length; i++) {\n if (i > 0)\n System.out.print(\" \" + a[i]);\n else\n System.out.print(a[i]);\n }\n }\n\n}\n<\/pre>\n","protected":false},"excerpt":{"rendered":"