/****************************************************************
* Program: Converting Egyptian Fractions to Fractions * * * * File: Egy_head.h ==> Header File for Egyptian * * created on: 21-Aug * * * *****************************************************************/#include<stdio.h>
#include<stdlib.h>
typedef struct egy_fractions /* No of unit fractions and points to denominator */
{int no_units_fractions;
int *p_den;
}egy_frac;
typedef struct resultant_fraction /* Resultant of fraction numerator and denominator */
{int num;
int den;
}res_frac;
void EgyFrac (egy_frac ,char *); /* Calculating Egyptian fractions */
int Gcd (int , int ); /* Calculating the Gcd for prod_denominator and sum_denominator */
Header file for Egyptian Fraction
/************************************************************************
* Program: Converting Egyptian Fractions to Fractions * * * * File: Egy_app.c ==> Main File for Egyptian * * * * * *************************************************************************/#include"Egy_head.h"
int main(int argc, char *argv[])
{egy_frac egy_ip ;
int no_instances;
int i,j;
FILE *ifp;
if (argc != 3)
{
printf("Insufficient data\n");
return 0;
}
ifp = fopen(argv[1],"r");
if (ifp==NULL)
{
perror("open");
exit(1);
}
fscanf(ifp,"%d",&no_instances); /* No of instances */
for (j=0;j<no_instances;j++)
{
fscanf(ifp,"%d",&egy_ip.no_units_fractions); /* No of units fractions */
egy_ip.p_den = (int *)malloc( sizeof(int) * egy_ip.no_units_fractions );
if (egy_ip.p_den == NULL)
{
perror("Error in allocating space\n");
exit(2);
}
for (i=0;i<egy_ip.no_units_fractions;i++)
{
fscanf(ifp,"%d",eg
Application file for Egyptian fraction
This change has been discarded.
| Library file for Egyptian fraction | |
|---|---|
| 1 | /************************************************************************ |
| 2 | * Program: Converting Egyptian Fractions to Fraction * |
| 3 | * * |
| 4 | * File: Egy_lib.c ==> Library File for Egyptian Fraction * |
| 5 | * * |
| 6 | * * |
| 7 | *************************************************************************/ |
| 8 | #include"Egy_head.h" //User-defined header file |
| 9 | |
| 10 | |
| 11 | void EgyFrac (egy_frac EGY, char *output_file) /* Calculation of Egyptian fractions */ |
| 12 | { |
| 13 | res_frac Res_EGY; |
| 14 | int prod_den=1,sum_den=0,gcd_prod_sum_den; |
| 15 | int i,j; |
| 16 | int *p_units; |
| 17 | FILE *ofp; |
| 18 | |
| 19 | |
| 20 | ofp=fopen (output_file,"a+"); |
| 21 | if (ofp == NULL) |
| 22 | { |
| 23 | perror("Output file\n"); |
| 24 | exit(2); |
| 25 | } |
| 26 | |
| 27 | for (i=0; i < EGY.no_units_fractions; i++) |
| 28 | { |
| 29 | prod_den = prod_den * EGY.p_den[i]; |
| 30 | } |
| 31 | |
| 32 | p_units = (int *)malloc(sizeof(int) * EGY.no_units_fractions); |
| 33 | if (p_units == NULL) |
| 34 | { |
| 35 | printf("Error in Data_units\n"); |
| 36 | exit(3); |
| 37 | } |
| 38 | |
| 39 | for (i=0; i < EGY.no_units_fractions; i++) |
| 40 | { |
| 41 | p_units[i] = prod_den / EGY.p_den[i]; |
| 42 | } |
| 43 | |
| 44 | for (i=0; i < EGY.no_units_fractions; i++) |
| 45 | sum_den = sum_den + p_units[i]; |
| 46 | |
| 47 | |
| 48 | gcd_prod_sum_den = Gcd (sum_den,prod_den); //calling the gcd function |
| 49 | |
| 50 | Res_EGY.num = sum_den / gcd_prod_sum_den; |
| 51 | Res_EGY.den = prod_den / gcd_prod_sum_den; |
| 52 | |
| 53 | |
| 54 | for (i=0; i < EGY.no_units_fractions; i++) |
| 55 | { |
| 56 | fprintf(ofp,"1/%d+",EGY.p_den[i]); |
| 57 | } |
| 58 | fprintf(ofp,"\b=%d/%d\n", Res_EGY.num,Res_EGY.den); |
| 59 | fclose(ofp); |
| 60 | |
| 61 | prod_den = 1; |
| 62 | sum_den = 0; |
| 63 | free(p_units); |
| 64 | } |
| 65 | |
| 66 | |
| 67 | int Gcd (int x, int y) // GCD function |
| 68 | { |
| 69 | int i; |
| 70 | for ( i = x; i >= 1; i--) |
| 71 | { |
| 72 | if( x % i == 0 && y % i == 0) |
| 73 | break; |
| 74 | } |
| 75 | return i; |
| 76 | |
| 77 | } |