0_0_33225900_21184.cpp:36:42: error: expected '}' at end of input
build(rson(rt), mid(l, r) + 1, r);
^
0_0_33225900_21184.cpp: In member function 'void tree_1::build(int, int, int)':
0_0_33225900_21184.cpp:36:42: error: expected '}' at end of input
0_0_33225900_21184.cpp: At global scope:
0_0_33225900_21184.cpp:36:42: error: expected unqualified-id at end of input
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