0_0_30677162_25668.cpp: In function 'void dfs1(int, int)': 0_0_30677162_25668.cpp:33:15: error: too few arguments to function 'void dfs1(int, int)' dfs1(y); ^ 0_0_30677162_25668.cpp:22:6: note: declared here void dfs1(int x, int num1) ^