﻿ compute number of fractions
```/*CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
C                                                                             C
C  COMPUTE NUMBER OF FRACTIONS						      C
C  12/19/14 (DKC)							      C
C                                                                             C
CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC*/
#include <math.h>
#include <stdlib.h>
unsigned int haros6(unsigned int N, unsigned int M,
unsigned int H, unsigned int K, unsigned int HP,
unsigned int KP, unsigned int D);
void lagrange2(unsigned int N, unsigned int D, unsigned int O,
unsigned int *ND);
void mertenax(unsigned int N, unsigned int *count, unsigned int I) {
unsigned int count1,count2,J,ND[2];
J=I/2;
if (N<=J) {
count[0]=0;
count[1]=0;
return;
}
if ((N>=(J+1))&&(N<I)) {
count[0]=0;
count[1]=N-J;
return;
}
if (N==I) {
count[0]=0;
if ((I&1)==0)
count[1]=J-1;
else
count[1]=J;
return;
}
if (N>I) {
count1=haros6(N,0,0,1,1,N,I);
count1=count1-2;
count[0]=count1;
lagrange2(1,I,N,ND);
if ((I&1)==0)
count2=haros6(N,0,1,I,ND[0],ND[1],J);
else
count2=haros6(N,0,1,I,ND[0],ND[1],I);
count2=count2-2;
count[1]=count2;
return;
}
return;
}
```