Compilare: main.cpp: In function 'int main()': main.cpp:93:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < noduri[ma - 1].size(); ++i) { ~~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp:82:10: warning: 'poz' may be used uninitialized in this function [-Wmaybe-uninitialized] int el, poz; ^~~ main.cpp:94:4: warning: 'el' may be used uninitialized in this function [-Wmaybe-uninitialized] if (noduri[ma - 1][i].val < el) ^~