View Compilation Error

0_0_33101425_2204.cpp: In function 'void build(int, int, int)':
0_0_33101425_2204.cpp:24:19: error: expected ';' at end of input
   sum[rt]=sum[rt*2]
                   ^
0_0_33101425_2204.cpp:24:19: error: expected '}' at end of input
0_0_33101425_2204.cpp:24:19: error: expected '}' at end of input