0_0_32229479_30198.cpp: In function 'int main()': 0_0_32229479_30198.cpp:108:31: error: too few arguments to function 'int dfs(int, int)' while(bfs()){ans+=dfs();} ^ 0_0_32229479_30198.cpp:50:5: note: declared here int dfs(int now,int last){ ^