Compilare: main.cpp: In function 'int main()': main.cpp:22:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < x.size(); ++i) ~~^~~~~~~~~~ main.cpp:47:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < sol.size(); ++i) ~~^~~~~~~~~~~~ main.cpp:40:11: warning: 'poz' may be used uninitialized in this function [-Wmaybe-uninitialized] s = poz + 1;// de unde incep urm cautare ~~^~~~~~~~~