Let us see the numbers program with user define function and structures.
#include<iostream>
using namespace std;
struct counting
{
int i;
int j;
int k=0;
};
void displaydata(counting);
int main(){
counting c;
displaydata(c);
return 0;
}
void displaydata(counting c){
for(c.i=0;c.i<=10;c.i++){
for(c.j=1;c.j<c.i;c.j++){
printf("%d",c.k);
c.k++;
}
printf("\n");
}
}
Output
