Compilare: main.cpp: In function 'int main()': main.cpp:56:41: warning: unused variable 'k' [-Wunused-variable] int i,j,n,m,cer,linfin,colfin,cnt,d,k,maxx=-1; ^ main.cpp:57:10: warning: 'cul' may be used uninitialized in this function [-Wmaybe-uninitialized] char cul,ch; ^~~ main.cpp:117:41: warning: 'colfin' may be used uninitialized in this function [-Wmaybe-uninitialized] out<<linfin<<" "<<colfin<<"\n"<<cul; ^~~ main.cpp:117:22: warning: 'linfin' may be used uninitialized in this function [-Wmaybe-uninitialized] out<<linfin<<" "<<colfin<<"\n"<<cul; ^~~