Compilare: main.cpp: In function 'int main()': main.cpp:10:22: warning: variable 'mini' set but not used [-Wunused-but-set-variable] int n,m,mm,i,s=0,mini,a,x,y,rez,xx,yy; ^~~~ main.cpp:47:18: warning: 'rez' may be used uninitialized in this function [-Wmaybe-uninitialized] cout<<rez<<" "<<st[rez]-st[xx]-sst[xx-1]*(rez-xx)+dr[rez]-dr[yy]-sdr[yy+1]*(yy-rez)<<'\n'; ^~~