Write a ‘C’ program to display the alternet character from an existing file

#include<stdio.h>
#include<conio.h>
void main()
{
int flag=0;
char fname[30],ch;
FILE *fp;
clrscr();
printf("\n enter the file name");
gets(fname);
fp=fopen(fname,"r");
if(fp==NULL)
{
printf("\n file can not be open");
exit(0);
}
ch=fgetc(fp);
while(ch!=EOF)
{
if(flag==0)
{
printf("%c",ch);
flag=1;
}
else
flag=0;
ch=fgetc(fp);
}
fclose(fp);
getch();
}

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