0_0_10280391_15130.cpp: In function `void push_up(int)':
0_0_10280391_15130.cpp:11: error: `max' undeclared (first use this function)
0_0_10280391_15130.cpp:11: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_10280391_15130.cpp: In function `int query(int, int, int, int, int)':
0_0_10280391_15130.cpp:32: error: `max' undeclared (first use this function)
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