Compilare: user.cpp: In function ‘void read()’: user.cpp:25:26: warning: format ‘%s’ expects argument of type ‘char*’, but argument 4 has type ‘char (*)[100005]’ [-Wformat=] fscanf(f,"%d%s",&k,&s); ^ user.cpp:27:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=1;i<=strlen(s);i++) ^ user.cpp:25:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%s",&k,&s); ^