/in/ex1.c: In function 'main':
/in/ex1.c:8:20: error: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[50]' [-Werror=format=]
     while (scanf("%s",&str[cnt])!= EOF){
                   ~^  ~~~~~~~~~
cc1: all warnings being treated as errors