CodePudding user response:

Depend, my eyes have problem, to see so bright images, eye particularly afflictive,

CodePudding user response:

C + + code, only supplies the reference:

 # include & lt; Fstream> 
using namespace std; 

Int fn (int a, int n) 
{
If (n==1) return a; 
The else return a * (10 * fn (1, n - 1) + n); 
} 

Int main (void) 
{
Int a, n. 
Ifstream fin (" SC3_6C. In "); 
Ofstream fout (" SC3_6C. Out "); 

Fin & gt;> A. & gt;> n; 
Fout & lt; 
return 0; 
} 

CodePudding user response:

Pow is floating point, assign a value to an integer will produce truncation errors,

CodePudding user response:

The other lining for lack of curly braces

CodePudding user response:

Second loop a little curly braces, should put the k=pow (10, j - 1); And sn=sn + a * k; Expansion in the second cycle,