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  • A program to find out NCR factor of given number in C language

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    ncr means : combination in terms of mathematics.We have to find out the perfect combination of given values. In the mathematics nCr has defined as nCr = n! /((n-r)! * r!)

        #include
        int main(){
          int n,r,ncr;
          printf("Enter any two numbers->");
          scanf("%d %d",&n,&r);
          ncr=fact(n)/(fact(r)*fact(n-r));                              //fact denotes factorial of a number .
          printf("The NCR factor of %d and %d is %d",n,r,ncr);
          return 0;
        }
         int fact(int n)                                                    // this is a factorial finding function
        { 
          int i=1;
          while(n!=0){
              i=i*n;
              n--;
          }
          return i;
         }
    
    
      sample output:
        6 4
        The NCR factor of 6 and 4 is 15
    

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