Question

IN C LANGUAGE

This program takes two command line arguments:

1. an input filename
2. a threshold

Your program will create two files:

1. even.txt - contains all integers from the input file that are even and greater than the threshold
2. odd.txt - contains all integers from the input file that are odd and greater than the threshold

• The input file will exist and only contain a set of integers. It will always be valid data.
• Output whitespace will be ignored.
• Name the files even.txt and odd.txt.

Answer 1

Thanks for the question. Below is the code you will be needing. Let me know if you have any doubts or if you need anything to change.

If you are satisfied with the solution, please leave a +ve feedback : ) Let me know for any help with any other questions.

Thank You!
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#include<stdio.h>
#include<ctype.h>
#include<stdlib.h>

int main(int argc, char *argv[]){
  
   // convert command line number to integer
   int threshold = atoi(argv[2]);
  
   char even_filename[] = "even.txt";
   char odd_filename[] = "odd.txt";
  
   FILE* infile = fopen(argv[1],"r");
   FILE* evenfile = fopen(even_filename,"w");
   FILE* oddfile = fopen(odd_filename,"w");
  
   if(infile==NULL || evenfile==NULL || oddfile==NULL){
       printf("Error: Reading Writing to files.");
       return 1;
   }
  
   int val;
   while(fscanf(infile,"%d",&val)!=EOF){
       if(val%2==0 && val > threshold){
           fprintf(evenfile,"%d\n", val);
       }
       else if(val%2==1 && val>threshold){
           fprintf(oddfile,"%d\n", val);
       }
   }
   // close the file handlers
   fclose(infile);
   fclose(evenfile);
   fclose(oddfile);
  
   printf("Files generated successfully.");
  
  
}

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