Compilare: user.cpp: In function ‘int main()’: user.cpp:137:29: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[10]’ [-Wformat=] while(fscanf(IN,"%s ",&C)!=EOF) ^ user.cpp:141:32: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(IN,"%d ",&X); ^ user.cpp:148:32: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(IN,"%d ",&X); ^ user.cpp:156:32: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(IN,"%d ",&X); ^