CareerCup

My favorite way to answer this question is to present an empty Python file.

#include<stdio.h>

int main()
{
char d;
int ret=0;
FILE *fp;
fp = fopen(__FILE__,"r");
ret = fscanf(fp,"%c",&d);
while(ret != EOF)
{
printf("%c",d);
ret = fscanf(fp,"%c",&d);
}
return 0;
}

Google Search for Quine. That is what you are looking for. I dont understand what do they get by asking such questions in interview. :(

#include <stdio.h>

int main()
{

char ch;
FILE *file;

file=fopen("printitself.c","r");

while((ch=fgetc(file))!=EOF)
printf("%c",ch);

return 0;
}

#include<stdio.h>
#include<stdlib.h>
void main()
{
	FILE *fp;
	fp=fopen("fileprog1.c","r");
	if(fp==NULL)
	{
		printf("error!\n");
		exit(1);
	}
	char c;
	while(fread(&c,sizeof(c),1,fp)!=NULL)
	{
		printf("%c",c);
	}
	fclose(fp);

}