0_0_19120936_18962.cpp: In function 'void build(int, int, int)': 0_0_19120936_18962.cpp:35:17: error: expected primary-expression before '%' token build(rson);%0 ^ 0_0_19120936_18962.cpp:35:18: error: expected '}' at end of input build(rson);%0 ^