View Compilation Error

0_0_29876952_23414.cpp: In function 'void dfs(int)':
0_0_29876952_23414.cpp:37:35: error: invalid operands of types 'node [1000005]' and 'int' to binary 'operator%'
     t[u].sz += t[t[u].l].sz + t[t%5
                                   ^
0_0_29876952_23414.cpp:37:35: error: expected ']' at end of input
0_0_29876952_23414.cpp:37:35: error: expected '}' at end of input