zeroout, C++ (gcc)

zeroout

//g++  7.4.0

//write and test a function that zeros out the diagonals of a 2-dimensional square array of ints
//this code is created by Rezaul Hoque on June 29,2021;contact: jewelmrh@yahoo.com
//note: codes shared by Rezaul Hoque on rextester are not for sale; they are created and shared to facilitate the algorithm learning process; many like Hoque use this platform to practice programming ;Rezaul hopes his contribution helps others to fine tune their  learning;

#include <iostream>
using namespace std;
void zeroout(int [][5], int);
void zeroout(int a[][5],int m){
int i,j;
for(i=0;i<m;i++){
for(j=0;j<m;j++){
if(i==j ||i+j==m-1)//when both i and j are same or sum of i and j is equal to one less the size of array(i.e. a[0][0],a[1][1],a[2][2], a[3][3],a[4][4],a[1][3], a[3][1],a[0][4],a[4][0])put zero 
   a[i][j]=0;}
}
}
int main()
{
int m=5;
int i,j;
int a[5][5]={{31,32,33,34,35},{45,47,48,49,50},{11,12,13,14,15},{16,17,18,19,20},{21,22,23,24,25}};
cout<<"Original array:\n";
for(i=0;i<m;i++){
for(j=0;j<m;j++){
cout<<" "<<a[i][j];
}
cout<<"\n";

}

zeroout(a,5);
cout<<"After zero out:\n";

for(i=0;i<m;i++){
for(j=0;j<m;j++){
cout<<" "<<a[i][j];
}
cout<<"\n";

}
return 0;
}


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