the program runs, but no output file is generated? am i missing a command still?

c Syntax (Toggle Plain Text)

#include <stdio.h>
#include <string.h>
#include <ctype.h>
int main(int argc, char *argv[]) {
char line[255];
fgets(line, 255, stdin);
char filename[80];      // This line can't be here.  It has to 
                        // be above all executable code in C
sprintf(filename,"%s.txt",line);
  return 0;
}

#include <stdio.h> #include <string.h> #include <ctype.h> int main(int argc, char *argv[]) { char line[255]; fgets(line, 255, stdin); char filename[80]; // This line can't be here. It has to // be above all executable code in C sprintf(filename,"%s.txt",line); return 0; }

well i used

fout = fopen("%s.txt", "w");

but how do i represet "%s.txt" as the user's input?