0_0_33088620_22235.cpp: In function 'int query(int, int, int)': 0_0_33088620_22235.cpp:30:41: error: 'qu' was not declared in this scope if (t[i*2+1].l <= r) ret = max(ret, qu ^ 0_0_33088620_22235.cpp:30:41: error: expected '}' at end of input