Merge pull request #48 from Chaitanyasuma/patch-10

Create ArrayManipulation

Author: satyajitghana

hackerrank/java/ArrayManipulation

@@ -0,0 +1,76 @@
+//Link: https://www.hackerrank.com/challenges/crush/problem
+
+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 arrayManipulation function below.
+    static long arrayManipulation(int n, int[][] queries, int m) {
+
+        long[] a=new long[n];
+        for(int i=0;i<n;i++)
+        {
+            a[i]=0;
+        }
+        
+        for( int j=0; j<m; j++)
+        {
+            int lower=queries[j][0];
+            int upper=queries[j][1];
+            int sum= queries[j][2];
+            a[lower-1]+=sum;
+            if(upper<n) a[upper]-=sum; 
+        }
+
+        long max=a[0];
+        long temp=0;
+        for(int k=0; k<n; k++)
+        {
+            temp += a[k];
+            if(temp> max) 
+                max=temp;
+        }
+        
+        return max;
+    }
+    
+
+    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[] nm = scanner.nextLine().split(" ");
+
+        int n = Integer.parseInt(nm[0]);
+
+        int m = Integer.parseInt(nm[1]);
+
+        int[][] queries = new int[m][3];
+
+        for (int i = 0; i < m; i++) {
+            String[] queriesRowItems = scanner.nextLine().split(" ");
+            scanner.skip("(\r\n|[\n\r\u2028\u2029\u0085])?");
+
+            for (int j = 0; j < 3; j++) {
+                int queriesItem = Integer.parseInt(queriesRowItems[j]);
+                queries[i][j] = queriesItem;
+            }
+        }
+
+        long result = arrayManipulation(n, queries, m);
+
+        bufferedWriter.write(String.valueOf(result));
+        bufferedWriter.newLine();
+
+        bufferedWriter.close();
+
+        scanner.close();
+    }
+}