View Compilation Error

0_0_37533921_2558.cpp: In function 'void update(int, int, int, int, int)':
0_0_37533921_2558.cpp:51:7: error: 'ind' was not declared in this scope
     f[ind]=(f[rt]*f[rt+1])%INF;
       ^
0_0_37533921_2558.cpp: In function 'int main()':
0_0_37533921_2558.cpp:88:18: error: 'upd' was not declared in this scope
     upd(1,1,n,b,c);
                  ^