Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:32:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0 ; i < q.size() ; i++){ ~~^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:143:46: warning: 'loposy' may be used uninitialized in this function [-Wmaybe-uninitialized] query(1,1,ki, loposy, vpoz[y][0]); ^ main.cpp:141:46: warning: 'loposx' may be used uninitialized in this function [-Wmaybe-uninitialized] query(1,1,ki, loposx, vpoz[x][0]); ^