C++ program to display largest element in each row in 2-D Array

August 25, 2021

Display Largest Element in each row in C++

In this article, we will discuss about largest element in each row in 2-D Array . Array has n-rows and m-columns , here our task is to write a program to Display the largest element in each row in a 2-D Array in C++.

Example :

Sample input: a=[[1,2,3],[6,5,4],[8,9,7]]
Sample output: 3 6 9
Explanation : In first row maximum element is 3
In second row maximum element is 6
In third row maximum element is 9

Algorithm :

Take the row and column of a matrix as input and store them in r and c variables respectively.
Declare a r*c 2D array.
Take the input of the 2D array from the user.
Declare maxi variable and initialize it with the Minimum value of Integer.
Traverse each element of a row and update the max variable according to the element.
After traversing a row print the maxi element
At the end all the max element of each row get printed.

C++ Code based on above algorithm :

#include<bits/stdc++.h>
using namespace std;

int main(){

    int r, c;

    cout<<"Enter the number od rows and columns :";
    cin>> r >> c;

    int a[r][c];

    cout<<"\nEnter the elements of matrix :";

    for(int i=0; i<r; i++){

        for(int j=0; j<c; j++)
         cin>>a[i][j];
    }

    for(int i=0; i<r; i++){

        int maxi = INT_MIN;

        for(int j=0; j<c; j++)
         maxi = max(a[i][j], maxi);

        cout<<maxi<<"\n";
    }

    return 0;
}

Output :

Enter the number of rows and columns : 3 3

Enter the elements of matrix : 

3 5 8

10 12 6

0 2 7

8

12

7