Compilare: main.cpp: In function 'void rec(int, int)': main.cpp:62:57: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=L[Sol[j+1].second][Sol[j].second]+1; i<S[Sol[j].second].size(); i++) ~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:109:50: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(Dp[conf^(1<<j)][j]>Dp[conf][i]+S[j+1].size()-1-L[i+1][j+1]) ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~