View Compilation Error

0_0_29601793_3498.cpp: In function 'int main()':
0_0_29601793_3498.cpp:32:42: error: 'su' was not declared in this scope
 if (Tree[i] == -1 && sum[i] > ans) ans = su } 
                                          ^
0_0_29601793_3498.cpp:35:9: error: expected '}' at end of input
 return 0;
         ^