Compilare: user.cpp: In function ‘int main()’: user.cpp:46:31: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[10]’ [-Wformat=] fscanf(f_in,"%s",&buff); ^ user.cpp: In function ‘void citeste(int&)’: user.cpp:17:41: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buff,1,10,stdin),poz=0; ^ user.cpp:22:41: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buff,1,10,stdin),poz=0; ^ user.cpp: In function ‘int main()’: user.cpp:43:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f_in,"%d %d",&m,&n); ^ user.cpp:46:32: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f_in,"%s",&buff); ^