Compilare: user.cpp: In function ‘int main()’: user.cpp:50:29: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[1005]’ [-Wformat=] fscanf(IN,"%s ",&str); ^ user.cpp:43:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(IN,"%d%d\n",&N,&M); ^ user.cpp:50:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(IN,"%s ",&str); ^