View Compilation Error

0_0_30470452_19473.cpp: In function 'void build(int, int, int)':
0_0_30470452_19473.cpp:25:38: error: expected ']' at end of input
     t[x].maxn = max(t[ls].maxn, t[rs%5
                                      ^
0_0_30470452_19473.cpp:25:38: error: expected ')' at end of input
0_0_30470452_19473.cpp:25:38: error: expected '}' at end of input