pascal triangle output

//  C++ code for Pascal's Triangle 
#include <stdio.h> 
  
// See https://www.geeksforgeeks.org/space-and-time-efficient-binomial-coefficient/  
// for details of this function 
int binomialCoeff(int n, int k); 
  
// Function to print first 
// n lines of Pascal's  
// Triangle 
void printPascal(int n) 
{ 
    // Iterate through every line and 
    // print entries in it 
    for (int line = 0; line < n; line++) 
    { 
        // Every line has number of  
        // integers equal to line  
        // number 
        for (int i = 0; i <= line; i++) 
            printf("%d ", 
                    binomialCoeff(line, i)); 
        printf("\n"); 
    } 
} 
  
// See https://www.geeksforgeeks.org/space-and-time-efficient-binomial-coefficient/ 
// for details of this function 
int binomialCoeff(int n, int k) 
{ 
    int res = 1; 
    if (k > n - k) 
    k = n - k; 
    for (int i = 0; i < k; ++i) 
    { 
        res *= (n - i); 
        res /= (i + 1); 
    } 
      
    return res; 
} 
  
// Driver program  
int main() 
{ 
    int n = 7; 
    printPascal(n); 
    return 0; 
}