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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. int factorial( int n ){
  5.     int result;
  6.     if( n == 0 ){
  7.         result = 1;
  8.     } else {
  9.         result = n * factorial((n - 1));
  10.     }
  11.     return result;
  12. }
  13.  
  14. char *stringa_binomiale(int n, int k){
  15.  
  16.     char *s;
  17.     s=malloc(sizeof(char)*20);
  18.  
  19.     int b;
  20.  
  21.     b = factorial(n)/(factorial(k)*factorial(n-k));
  22.  
  23.     sprintf(s,"%i su %i fa %i",n ,k ,b);
  24.  
  25.     return s;
  26. }
  27.  
  28. int main (void){
  29.  
  30.     int n;
  31.     int k;
  32.     char *s;
  33.     s=malloc(sizeof(char)*20);
  34.  
  35.     printf("n:");
  36.     scanf("%i",&n);
  37.     printf("k:");
  38.     scanf("%i",&k);
  39.  
  40.     s= stringa_binomiale(n,k);
  41.     printf("%s \n", stringa_binomiale(n, k));
  42.  
  43.     free(s);
  44.     return 0;
  45. }
Success #stdin #stdout 0s 2384KB
comments (?)
stdin 
6
4
stdout 
n:k:6 su 4 fa 15
https://ideone.com/CTKDyX
language:
C (gcc 8.3)
created:
11 years ago
visibility:
public

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