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Array_Left_Rotation.java
executable file
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Array_Left_Rotation.java
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import java.io.*;
import java.math.*;
import java.security.*;
import java.text.*;
import java.util.*;
import java.util.concurrent.*;
import java.util.regex.*;
public class Solution {
// Complete the rotLeft function below.
static int[] rotLeft(int[] a, int d) {
int[] res = new int[a.length];
if(d == a.length){
return a;
}
if(d > a.length){
d = d%a.length;
}
for(int i=0;i<a.length;i++){
res[(a.length+(i-d))%a.length]= a[i];
}
return res;
}
private static final Scanner scanner = new Scanner(System.in);
public static void main(String[] args) throws IOException {
BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter(System.getenv("OUTPUT_PATH")));
String[] nd = scanner.nextLine().split(" ");
int n = Integer.parseInt(nd[0]);
int d = Integer.parseInt(nd[1]);
int[] a = new int[n];
String[] aItems = scanner.nextLine().split(" ");
scanner.skip("(\r\n|[\n\r\u2028\u2029\u0085])?");
for (int i = 0; i < n; i++) {
int aItem = Integer.parseInt(aItems[i]);
a[i] = aItem;
}
int[] result = rotLeft(a, d);
for (int i = 0; i < result.length; i++) {
bufferedWriter.write(String.valueOf(result[i]));
if (i != result.length - 1) {
bufferedWriter.write(" ");
}
}
bufferedWriter.newLine();
bufferedWriter.close();
scanner.close();
}
}