Compilare: user.cpp: In function ‘int findbin(int, int)’: user.cpp:30:12: warning: variable ‘b’ set but not used [-Wunused-but-set-variable] int a, b, m; ^ user.cpp:30:15: warning: unused variable ‘m’ [-Wunused-variable] int a, b, m; ^ user.cpp: In function ‘int main()’: user.cpp:67:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &n); ^ user.cpp:73:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &numero); ^