vitale.cpp: In function `void solve()': vitale.cpp:59: warning: unused variable `int node' vitale.cpp:59: warning: unused variable `int tata' vitale.cpp:59: warning: unused variable `int i' vitale.cpp: In function `int main()': vitale.cpp:85: warning: comparison between signed and unsigned integer expressions vitale.cpp:89: warning: comparison between signed and unsigned integer expressions vitale.cpp:97: warning: comparison between signed and unsigned integer expressions vitale.cpp:126: warning: comparison between signed and unsigned integer expressions vitale.cpp:140: warning: comparison between signed and unsigned integer expressions vitale.cpp:167: warning: comparison between signed and unsigned integer expressions