Compilare: user.cpp: In function ‘int main()’: user.cpp:11:43: warning: variable ‘modif’ set but not used [-Wunused-but-set-variable] int t,n,c,maxt,i,maxi,sum,x,y,cast,dc,modif,m,j,can,d0,vot,pp; ^ user.cpp:13:35: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d%d%d",&t,&n,&c); ^ user.cpp:19:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d",&m); ^ user.cpp:22:38: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d%d",&x,&y); ^ user.cpp:63:9: warning: ‘cast’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (v[i].first==cast){ ^ user.cpp:31:27: warning: ‘can’ may be used uninitialized in this function [-Wmaybe-uninitialized] v[i].first=can; ^