Compilare: main.cpp: In function 'void Solve(int, bool)': main.cpp:40:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(pos >= n.size()) ~~~~^~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:69:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < n.size(); i++) ~~^~~~~~~~~~ main.cpp:73:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < n.size() && p > 1; i++, p -= 2) ~~^~~~~~~~~~