Compilare: main.cpp: In function 'int main()': main.cpp:46:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(sol[i].size()>lg) ~~~~~~~~~~~~~^~~ main.cpp: In function 'void citire()': main.cpp:63:11: warning: unused variable 'j' [-Wunused-variable] int i,j,x,y; ^ main.cpp: In function 'void bkt(int, int)': main.cpp:122:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(ct=0;ct<solbkt.size();ct++) ~~^~~~~~~~~~~~~~