View Compilation Error

0_0_17270231_2661.cpp: In function 'void Update(int, int, int, int)':
0_0_17270231_2661.cpp:50:20: error: too few arguments to function 'void Update(int, int, int, int)'
         Update(lson);
                    ^
0_0_17270231_2661.cpp:44:6: note: declared here
 void Update(int rt,int L,int R,int id){
      ^
0_0_17270231_2661.cpp:52:20: error: too few arguments to function 'void Update(int, int, int, int)'
         Update(rson);
                    ^
0_0_17270231_2661.cpp:44:6: note: declared here
 void Update(int rt,int L,int R,int id){
      ^