0_0_9453795_27272.cpp: In constructor `node::node()':
0_0_9453795_27272.cpp:18: error: `root' undeclared (first use this function)
0_0_9453795_27272.cpp:18: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_9453795_27272.cpp: At global scope:
0_0_9453795_27272.cpp:20: error: `node*root' used prior to declaration
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