Compilare: user.cpp: In function ‘void solve()’: user.cpp:90:23: warning: unused variable ‘count’ [-Wunused-variable] int flow = 0, count = 0; ^ user.cpp:80:9: warning: unused variable ‘MIN’ [-Wunused-variable] int MIN; ^ user.cpp:86:9: warning: unused variable ‘node’ [-Wunused-variable] int node; ^ user.cpp: In function ‘int main()’: user.cpp:113:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<SOL.size(); i++) ^