cquizgame.c: In function ‘main’:
cquizgame.c:34:6: error: too few arguments to function ‘toupper’
      choice=toupper();
      ^
cquizgame.c:56:6: warning: ‘gets’ is deprecated (declared at /usr/include/stdio.h:638) [-Wdeprecated-declarations]
      gets(playername);
      ^
cquizgame.c: In function ‘show_record’:
cquizgame.c:478:2: warning: format ‘%s’ expects argument of type ‘char *’, but argument 3 has type ‘char (*)[20]’ [-Wformat=]
  fscanf(f,"%s%f",&name,&scr);
  ^
cquizgame.c: In function ‘reset_score’:
cquizgame.c:491:2: warning: format ‘%s’ expects argument of type ‘char *’, but argument 3 has type ‘char (*)[20]’ [-Wformat=]
  fscanf(f,"%s%f",&nm,&sc);
  ^
cquizgame.c: In function ‘edit_score’:
cquizgame.c:522:2: warning: format ‘%s’ expects argument of type ‘char *’, but argument 3 has type ‘char (*)[20]’ [-Wformat=]
  fscanf(f,"%s%f",&nm,&sc);
  ^