View Compilation Error

0_0_29649904_27951.cpp: In function 'void update(int&, int, int, int)':
0_0_29649904_27951.cpp:36:13: error: 'create' was not declared in this scope
     create(k);
             ^
0_0_29649904_27951.cpp: In function 'void split1(int&, int, int, int, int)':
0_0_29649904_27951.cpp:45:13: error: 'create' was not declared in this scope
     create(x);
             ^
0_0_29649904_27951.cpp: In function 'void split2(int&, int, int, int, int)':
0_0_29649904_27951.cpp:62:13: error: 'create' was not declared in this scope
     create(x);
             ^
0_0_29649904_27951.cpp: In function 'int main()':
0_0_29649904_27951.cpp:134:25: error: 'insert' was not declared in this scope
    insert(1,n,rt[i],a[i]);
                         ^