write a pragram to find pascal triangle using class function

Question

i don't no this answer pls tell me

Answer 1

#include <iostream>
#include <string>
using namespace std;
void PascalsTriangle(int);
int main()
{
int n;
cout << "Enter the number of rows you would like to print for Pascal's Triangle: ";
cin >> n;
cout << endl;
PascalsTriangle(n);
return 0;
}
int numdigits(int x)
{
int count = 0;
while(x != 0) {
x = x / 10;
++count;
}
return count;
}
void PascalsTriangle (int n)
{
int i, j, x, y, maxlen;
string len;
for(i = 0; i < n; i++) {
x = 1;
len = string((n-i-1)*(n/2), ' ');
cout << len;
for(j = 0; j <= i; j++) {
y = x;
x = x * (i - j) / (j + 1);
maxlen = numdigits(x) - 1;
if(n % 2 == 0)
cout << y << string(n - 1 - maxlen, ' ');
else {
cout << y << string(n - 2 - maxlen, ' ');
}
}
cout << endl;
}
}