✅Row Index Identification (Contest)

Row Index Identification (Contest) easy Time Limit: 2 sec Memory Limit: 128000 kB

Problem Statement :

You are given a grid having N*M elements. Find the index of the row (1- indexed) which has the maximum sum of elements. Input The first line of the input contains two integers N and M. The next N lines each contain M space separated integers.

Constraints: 1 <= N, M <= 103 1 <= Ai, j <= 109 Output Print the index of the row (1- indexed) which has the maximum sum of elements. Example Sample Input: 3 4 3 4 2 5 1 7 2 8 1 2 3 3

Sample Output: 2

Explaination: Row number 2 has sum = 5 + 1 + 7 = 13 which is the maximum among all rows.

link:https://my.newtonschool.co/playground/code/aynhnibk9jnc/

```java
import java.io.*; // for handling input/output
import java.util.*; // contains Collections framework

// don't change the name of this class
// you can add inner classes if needed
class Main {
    public static void main (String[] args) {
         Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int m = sc.nextInt();
        int maxRow = 0;
        long maxSum = Long.MIN_VALUE;
        for (int i = 0; i < n; i++) {
            long rowSum = 0;
            for (int j = 0; j < m; j++) {
                rowSum += sc.nextInt();
            }
            if (rowSum > maxSum) {
                maxSum = rowSum;
                maxRow = i + 1;
            }
        }
        System.out.println(maxRow);
    }
}

//method 02
```java
import java.io.*; // for handling input/output
import java.util.*; // contains Collections framework

// don't change the name of this class
// you can add inner classes if needed
class Main {
    public static void main (String[] args)throws IOException {
        // Your code here
        Scanner sc = new Scanner(System.in);
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        String rowcol[] = br.readLine().split(" ");
        int row = Integer.parseInt(rowcol[0]);
        int col = Integer.parseInt(rowcol[1]);
        long sum = 0;
        long max = 0;
        int index = 0;

        String str[] = new String[row];
        for(int i=0;i<row;i++)
        {
            str[i] = br.readLine();
        }
        int arr[][] = new int[row][col];
        for(int i=0;i<row;i++)
        {
            String strArr[] = str[i].split(" ");
            for(int j=0;j<col;j++){
                arr[i][j] = Integer.parseInt(strArr[j]);
                sum += arr[i][j];
            }

            if(sum>max)
            {
                index = i;
                max = sum;
            }
            sum = 0;
        }
        System.out.print(index+1);
    }
}
```