Compilare: user.cpp: In function ‘bool cmp(int)’: user.cpp:20:10: warning: variable ‘it’ set but not used [-Wunused-but-set-variable] auto it = Curr.begin(), it2 = C.begin(); ^ user.cpp:20:29: warning: variable ‘it2’ set but not used [-Wunused-but-set-variable] auto it = Curr.begin(), it2 = C.begin(); ^ user.cpp: In function ‘void precalcCurr(int)’: user.cpp:37:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < G[node].size(); i++) ^ user.cpp: In function ‘bool cmp2(int)’: user.cpp:54:10: warning: variable ‘it’ set but not used [-Wunused-but-set-variable] auto it = C.begin(), it2 = Ans.begin(); ^ user.cpp:54:26: warning: variable ‘it2’ set but not used [-Wunused-but-set-variable] auto it = C.begin(), it2 = Ans.begin(); ^ user.cpp: In function ‘void DFS(int, int)’: user.cpp:85:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < G[node].size(); i++) ^ user.cpp:84:9: warning: variable ‘cnt’ set but not used [-Wunused-but-set-variable] int cnt = 0; ^ user.cpp: In function ‘void DFS2(int, int, char)’: user.cpp:102:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < G[node].size(); i++) ^ user.cpp:114:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < G[node].size(); i++) ^ user.cpp:136:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < G[node].size(); i++) ^ user.cpp: In function ‘int main()’: user.cpp:174:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < Ans.size(); i++) ^