Compilare: main.cpp: In function 'int main()': main.cpp:57:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0;i < distX.size();i++) ~~^~~~~~~~~~~~~~ main.cpp:67:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0;i < distX.size();i++) ~~^~~~~~~~~~~~~~ main.cpp:78:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0;i < frecv.size();i++) ~~^~~~~~~~~~~~~~