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LargestRowsColumns
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LargestRowsColumns
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import java.util.ArrayList;
import java.util.Scanner;
public class LargestRowsColumns {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.print("Enter the array size n: ");
int n = input.nextInt();
int[][] array = new int[n][n];
fill(array);
print(array);
System.out.print("Largest row (index): "); print(largestRow(array));
System.out.print("Largest column (index): "); print(largestColumn(array));
}
public static void print(ArrayList<Integer> l) {
for (int index = 0; index < l.size(); index++) {
System.out.print(l.get(index) + " ");
}//end for
System.out.println();
}
public static ArrayList<Integer> largestColumn(int[][] array) {
ArrayList<Integer> index = new ArrayList<Integer>();
int[] count = new int[array.length];
for (int i = 0; i < array.length; i++) {
for (int temp = 0; temp < array[i].length; temp++) {
if (array[i][temp] == 1)
count[temp]++;
}//inner for
}//outer for
int max = max(count);
getIndex(index, count, max);
return index;
}
public static ArrayList<Integer> largestRow(int[][] array) {
ArrayList<Integer> index = new ArrayList<Integer>();
int[] count = new int[array.length];
for (int i = 0; i < array.length; i++) {
for (int temp = 0; temp < array[i].length; temp++) {
if (array[temp][i] == 1)
count[temp]++;
}//inner for
}//outer for
int max = max(count);
getIndex(index, count, max);
return index;
}
public static int max(int[] array) {
int max = array[0];
for (int index = 0; index < array.length; index++) {
if (array[index] > max) {
max = array[index];
}//end if
}//end for
return max;
}
public static void getIndex(ArrayList<Integer> list, int[] count, int x) {
for (int index = 0; index < count.length; index++) {
if (count[index] == x) {
list.add(index);
}//end if
}//end for
}
public static void fill(int[][] array) {
for (int index = 0; index < array.length; index++) {
for (int temp = 0; temp < array[index].length; temp++) {
array[index][temp] = (int)(Math.random() * 2);
}//inner for
}//outer for
}
public static void print(int[][] array) {
for (int index = 0; index < array.length; index++) {
for (int temp = 0; temp < array[index].length; temp++) {
System.out.print(array[index][temp]);
}//inner for
System.out.println();
}//outer for
}
}//end class