295370_0_6224.cpp: In function `int main()':
295370_0_6224.cpp:15: error: `juedui' undeclared (first use this function)
295370_0_6224.cpp:15: error: (Each undeclared identifier is reported only once for each function it appears in.)
295370_0_6224.cpp: In function `int juedui(int)':
295370_0_6224.cpp:39: error: `int juedui(int)' used prior to declaration
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