Compilare: main.cpp: In function 'int main()': main.cpp:58:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (rez.size()!=n) ~~~~~~~~~~^~~ main.cpp:64:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i<rez.size(); i++) ~^~~~~~~~~~~ main.cpp:18:11: warning: 'start' may be used uninitialized in this function [-Wmaybe-uninitialized] int n,start; ^~~~~