Compilare: main.cpp: In function 'int main()': main.cpp:68:9: warning: unused variable 'xc' [-Wunused-variable] int xc = 0; ^~ main.cpp:30:25: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d",&n); ^ main.cpp:80:14: warning: 'dmic' may be used uninitialized in this function [-Wmaybe-uninitialized] while (s < dmic){ ~~^~~~~~ main.cpp:44:10: warning: 'dmare' may be used uninitialized in this function [-Wmaybe-uninitialized] n /= dmare; ^~~~~