In this problem here I am going to solve maximum element of each row in a matrix.
Suppose there is a matrix, and find out maximum element in each row.
Examples:
Input : [10, 20, 3]
[12, 4, 94]
[6, 3, 210]
Output :
3
4
3
Input : [10, 20, 3, 21]
[16, 1, 65, 9]
[17, 57, 3, 20]
Output :
3
1
2Then Approach: Here approach is very simple.
The idea is to run the loop for no_of_rows basis.
Check each element inside the each row and find the maximum element.
Finally, we print the element.
Now, see the below implementation:
The Maximum Element Of Each Row In A Matrix In C++
// C++ program to find maximum
// element of each row in a matrix
#include<bits/stdc++.h>
using namespace std;
const int N = 4;
// Print array element
void printArray(int result[], int no_of_rows) {
for (int i = 0; i < no_of_rows; i++) {
cout<< result[i]<<"\n";
}
}
// Function to get max element
void maxelement(int no_of_rows, int arr[][N]) {
int i = 0;
// Initialize max to 0 at beginning
// of finding max element of each row
int max = 0;
int result[no_of_rows];
while (i < no_of_rows) {
for (int j = 0; j < N; j++) {
if (arr[i][j] > max) {
max = arr[i][j];
}
}
result[i] = max;
max = 0;
i++;
}
printArray(result,no_of_rows);
}
// Driver code
int main()
{
int arr[][N] = { {2, 40, 1, 80},
{17, 4, 90, 11},
{96, 34, 22, 10},
{3, 2, 7, 5} };
// Calling the function
maxelement(4, arr);
}
// This code is contributed by Rajput-JiOutput:
1
4
22
2The Maximum Element Of Each Row In A Matrix In Java
// C++ program to find maximum
// element of each row in a matrix
#include<bits/stdc++.h>
using namespace std;
const int N = 4;
// Print array element
void printArray(int result[], int no_of_rows) {
for (int i = 0; i < no_of_rows; i++) {
cout<< result[i]<<"\n";
}
}
// Function to get max element
void maxelement(int no_of_rows, int arr[][N]) {
int i = 0;
// Initialize max to 0 at beginning
// of finding max element of each row
int max = 0;
int result[no_of_rows];
while (i < no_of_rows) {
for (int j = 0; j < N; j++) {
if (arr[i][j] > max) {
max = arr[i][j];
}
}
result[i] = max;
max = 0;
i++;
}
printArray(result,no_of_rows);
}
// Driver code
int main()
{
int arr[][N] = { {2, 40, 1, 80},
{17, 4, 90, 11},
{96, 34, 22, 10},
{3, 2, 7, 5} };
// Calling the function
maxelement(4, arr);
}
// This code is contributed by Rajput-JiOutput:
1
4
22
2The Maximum Element Of Each Row In A Matrix In Python
# Python program to find maximum
# element of each row in a matrix
# importing numpy
import numpy
# Function to get max element
def maxelement(arr):
# get number of rows and columns
no_of_rows = len(arr)
no_of_column = len(arr[0])
for i in range(no_of_rows):
# Initialize max1 to 0 at beginning
# of finding max element of each row
max1 = 0
for j in range(no_of_column):
if arr[i][j] > max1 :
max1 = arr[i][j]
# print maximum element of each row
print(max1)
# Driver Code
arr = [[2, 40, 1, 80],
[17, 4, 90, 11],
[96, 34, 22, 10],
[3, 2, 7, 5] ]
# Calling the function
maxelement(arr)Output:
1
4
22
2The Maximum Element Of Each Row In A Matrix In C#
// C# program to find maximum
// element of each row in a matrix
using System;
class GFG
{
// Function to get max element
public static void maxelement(int no_of_rows,
int[][] arr)
{
int i = 0;
// Initialize max to 0 at beginning
// of finding max element of each row
int max = 0;
int[] result = new int[no_of_rows];
while (i < no_of_rows)
{
for (int j = 0;
j < arr[i].Length; j++)
{
if (arr[i][j] > max)
{
max = arr[i][j];
}
}
result[i] = max;
max = 0;
i++;
}
printArray(result);
}
// Print array element
private static void printArray(int[] result)
{
for (int i = 0; i < result.Length;i++)
{
Console.WriteLine(result[i]);
}
}
// Driver code
public static void Main(string[] args)
{
int[][] arr = new int[][]
{
new int[] {2, 40, 1, 80},
new int[] {17, 4, 90, 11},
new int[] {96, 34, 22, 10},
new int[] {3, 2, 7, 5}
};
// Calling the function
maxelement(4, arr);
}
}
// This code is contributed by Shrikant13
Output:
1
4
22
2The Maximum Element Of Each Row In A Matrix In PHP
<?php
// PHP program to find maximum
// element of each row in a matrix
$N = 4;
// Print array element
function printArray($result, $no_of_rows)
{
for ($i = 0; $i < $no_of_rows; $i++)
{
echo $result[$i]."\n";
}
}
// Function to get max element
function maxelement($no_of_rows, $arr)
{
global $N;
$i = 0;
// Initialize max to 0 at beginning
// of finding max element of each row
$max = 0;
$result=array_fill(0,$no_of_rows,0);
while ($i < $no_of_rows)
{
for ($j = 0; $j < $N; $j++)
{
if ($arr[$i][$j] > $max)
{
$max = $arr[$i][$j];
}
}
$result[$i] = $max;
$max = 0;
$i++;
}
printArray($result,$no_of_rows);
}
// Driver code
$arr = array(array(2, 40, 1, 80),
array(17, 4, 90, 11),
array(96, 34, 22, 10),
array(3, 2, 7, 5));
// Calling the function
maxelement(4, $arr);
// This code is contributed by mits
?>
Output:
1
4
22
2The Maximum Element Of Each Row In A Matrix In JavaScript
<script>
// javascript program to find maximum
// element of each row in a matrix
// Function to get max element
function maxelement(no_of_rows, arr)
{
var i = 0;
// Initialize max to 0 at beginning
// of finding max element of each row
var max = 0;
var result = Array.from({length: no_of_rows}, (_, i) => 0);
while (i < no_of_rows)
{
for (var j = 0; j < arr[i].length; j++)
{
if (arr[i][j] > max)
{
max = arr[i][j];
}
}
result[i] = max;
max = 0;
i++;
}
printArray(result);
}
// Prvar array element
function printArray(result)
{
for (var i = 0; i < result.length; i++)
{
document.write(result[i]+"<br>");
}
}
// Driver code
var arr = [[2, 40, 1, 80],
[17, 4, 90, 11],
[96, 34, 22, 10],
[3, 2, 7, 5] ];
// Calling the function
maxelement(4, arr);
// This code is contributed by 29AjayKumar
</script>
Output:
1
4
22
2
