View Compilation Error

0_0_25022642_14118.cpp: In function 'void UpdateTree(int)':
0_0_25022642_14118.cpp:35:23: error: expected ')' before ']' token
     int b=Node[(fi*2+1].value;
                       ^
0_0_25022642_14118.cpp:35:30: error: expected ']' before ';' token
     int b=Node[(fi*2+1].value;
                              ^
0_0_25022642_14118.cpp:35:30: error: cannot convert 'node' to 'int' in initialization