Compilare: main.cpp: In function 'int main()': main.cpp:37:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < G[i].size(); ++ j) ~~^~~~~~~~~~~~~ main.cpp:46:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (ind1 < G[i].size() && ind2 < Gp[i].size()) ~~~~~^~~~~~~~~~~~~ main.cpp:46:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (ind1 < G[i].size() && ind2 < Gp[i].size()) ~~~~~^~~~~~~~~~~~~~ main.cpp:51:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (ind1 < G[i].size()) ~~~~~^~~~~~~~~~~~~ main.cpp:54:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < w.size(); ++ i) ~~^~~~~~~~~~ main.cpp:70:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < w.size(); ++ i) ~~^~~~~~~~~~