Compilare: main.cpp: In function 'int main()': main.cpp:11:15: warning: unused variable 'k' [-Wunused-variable] int x,y,n,k,l,j,c,q,i,p,nr,sol,lf,cf,la,ca; ^ main.cpp:59:22: warning: 'cf' may be used uninitialized in this function [-Wmaybe-uninitialized] if(l==lf && c==cf) ~^~~~ main.cpp:59:13: warning: 'lf' may be used uninitialized in this function [-Wmaybe-uninitialized] if(l==lf && c==cf) ~^~~~ main.cpp:32:15: warning: 'sol' may be used uninitialized in this function [-Wmaybe-uninitialized] out<<sol<<'\n'; ^~~~