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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. int factorial(int p)  
  4. {  
  5.   if (p == 0)  
  6.     return 1;  
  7.   else  
  8.     return(p * factorial(p-1));  
  9. } 
  10. int main()
  11. {
  12.   char ppk[10];
  13.   cin >> ppk;
  14.   int N[26]={0};
  15.   int j=0;
  16.   while(ppk[j]!='\0')
  17.   {
  18.     N[ppk[j]-'a']++;
  19.     j++;
  20.   }
  21.   int permutat;
  22.   permutat=factorial(strlen(ppk));
  23.   for(int i=0;i<26;i++)
  24.   {
  25.     if(N[i]>=2)
  26.     {
  27.       permutat=permutat/factorial(N[i]);
  28.     }
  29.   }
  30.   cout << permutat;
  31.   return 0;
  32. }
Success #stdin #stdout 0s 5556KB
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https://ideone.com/3qutx8
language:
C++ (gcc 8.3)
created:
1 year ago
visibility:
public

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