View Compilation Error

0_0_25024818_8930.cpp: In function 'void dfs(int, int)':
0_0_25024818_8930.cpp:30:9: error: too few arguments to function 'void dfs(int, int)'
   dfs(nx);
         ^
0_0_25024818_8930.cpp:22:6: note: declared here
 void dfs(int x, int par) {
      ^
0_0_25024818_8930.cpp: In function 'int main()':
0_0_25024818_8930.cpp:83:8: error: too few arguments to function 'void dfs(int, int)'
   dfs(1);
        ^
0_0_25024818_8930.cpp:22:6: note: declared here
 void dfs(int x, int par) {
      ^