Program to display Pascal triangle in C++?

Question

C++ is a computer language

Answer 1

Best Answer - Chosen by Voters

#include<iostream.h>
void main()
{
int a[10][10],i,j,n;
cout<<" Enter the final row of Pascal's triangle:";
cin>>n;
for(int i=0;i<n;i++)
{ a[i][0]=1;}
for(i=1;i<=n;i++)
{ a[i][i+1]=1;}
for(int i=2;i<n;i++)
{
for(j=1;j<=i;j++)
{
a[i][j]=a[i-1][j-1]+a[i-1]a[j];
}
}
for(i=0;i<n;i++)
{
for(j=0;j<i+1;j++)
{
cout<<a[i][j]<<"\t";
}
cout<<endl;
}

I have used a bi-directional array for this. if you want its explaination, i can explain it to you on [e-mail]

Answer 2

#include <iostream>
using namespace std;
int main()
{
int n,k,i,x;
cout << "Enter a row number for Pascal's Triangle: ";
cin >> n;
for(i=0;i<=n;i++)
{
x=1;
for(k=0;k<=i;k++)
{
cout << x << " ";
x = x * (i - k) / (k + 1);
}
cout << endl;
}
return 0;
}

Source(s):

http://www.daniweb.com/forums/thread6883…