Compilare: main.cpp: In function 'int main()': main.cpp:24:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < lst.size() - 1; i++) { ~~^~~~~~~~~~~~~~~~ main.cpp:30:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < curr.size(); i++) { ~~^~~~~~~~~~~~~ main.cpp:42:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < lst.size() - 1; i++) { ~~^~~~~~~~~~~~~~~~ main.cpp:48:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < curr.size(); i++) { ~~^~~~~~~~~~~~~