Compilare: user.cpp: In function ‘void solve()’: user.cpp:72:9: warning: unused variable ‘i’ [-Wunused-variable] int i,j,sp,cant,nr_spate,nr_fata,vf; ^ user.cpp:72:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j,sp,cant,nr_spate,nr_fata,vf; ^ user.cpp:72:13: warning: unused variable ‘sp’ [-Wunused-variable] int i,j,sp,cant,nr_spate,nr_fata,vf; ^ user.cpp:72:16: warning: unused variable ‘cant’ [-Wunused-variable] int i,j,sp,cant,nr_spate,nr_fata,vf; ^ user.cpp:72:21: warning: unused variable ‘nr_spate’ [-Wunused-variable] int i,j,sp,cant,nr_spate,nr_fata,vf; ^ user.cpp:72:30: warning: unused variable ‘nr_fata’ [-Wunused-variable] int i,j,sp,cant,nr_spate,nr_fata,vf; ^ user.cpp:72:38: warning: unused variable ‘vf’ [-Wunused-variable] int i,j,sp,cant,nr_spate,nr_fata,vf; ^ user.cpp: In function ‘bool verif(int)’: user.cpp:48:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘void read()’: user.cpp:87:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d",&n,&k); ^ user.cpp:89:44: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for (i=1;i<=n;i++) fscanf(f,"%d",&v[i]); ^