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  1. #include <stdio.h>
  2.  
  3. int factorial(int x){
  4.       int fact =1;
  5.       for( int i=1;i<=x;i++){
  6.           fact= fact*i;
  7.           }
  8.       return fact;
  9.   }
  10. int combination (int n,int r){
  11.        int ncr=factorial(n)/(factorial(r)*factorial(n-r));   
  12.   return ncr;
  13.   }
  14.  
  15. int main() {
  16.  
  17.      int n;
  18.      printf("Enter the n: \n");
  19.      scanf("%d",&n);
  20.  
  21.      for( int i=0;i<=n;i++){
  22.            for(int j=0;j<=i;j++){
  23.             int icj= combination(i,j);
  24.             printf(" %d ",icj);
  25.             }
  26.             printf("\n");
  27.       }
  28.  
  29. 	return 0;
  30. }
Success #stdin #stdout 0.01s 5276KB
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stdin
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4
stdout
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Enter the n: 
 1 
 1  1 
 1  2  1 
 1  3  3  1 
 1  4  6  4  1
https://ideone.com/84IYJT
language:
C (gcc 8.3)
created:
10 hours ago
visibility:
public

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