CodePudding user response:

 # include 

M//double fac (int, int n) 
Double fac (long int m, long int n) 
{
Int I, j, k, l, q, t; 
Double s; 

S=0; 
L=1; 
Q=1; 
T=1; 

For (I=1; i <=m; I++) {
L=l * I; 
} 
For (j=1; J & lt;=n; J++) {
Q=q * j; 
} 
For (k=1; K & lt;=(m - n); K++) {
T=t * k; 
} 
S * 1.0=l/q/k;//that this arithmetic is of type double 

Return s; 
} 
Int main () 
{
Long int m, n; 
//scanf_s (ld ld, & amp; M, & amp; n); 
Scanf_s (" % ld % ld ", & amp; M, & amp; n); 

If (m & lt; N & amp; & M> 0 & amp; & N & gt; 0 {
Printf (" 0 "); 
return 0; 
} 
If (m==n & amp; & M & gt; 0 & amp; & N & gt; 0 {
Printf (" 1 "); 
return 0; 
} 

If (m & gt; N & amp; & M & gt; 0 & amp; & N & gt; 0 {
Printf (" % lf ", fac (m, n)); 
return 0; 
} 
The else 
Printf (" 1 "); 
return 0; 
} 

//scanf_s (ld ld, & amp; M, & amp; n); 
Scanf_s (" % ld % ld ", & amp; M, & amp; n); 

 s * 1.0=l/q/k;//that this arithmetic is of type double 

//double fac (int, int n) 
Double fac (long int m, long int n)