View Compilation Error

0_0_30700881_11103.cpp: In function 'int main()':
0_0_30700881_11103.cpp:96:26: error: too many arguments to function 'void add(int, int)'
         add(root1,root2,1);//根连接
                          ^
0_0_30700881_11103.cpp:27:6: note: declared here
 void add(int x,int y){
      ^
0_0_30700881_11103.cpp:97:26: error: too many arguments to function 'void add(int, int)'
         add(root2,root1,1);
                          ^
0_0_30700881_11103.cpp:27:6: note: declared here
 void add(int x,int y){
      ^