295366_0_4041.cpp: In function `int main()':
295366_0_4041.cpp:15: error: `abs' undeclared (first use this function)
295366_0_4041.cpp:15: error: (Each undeclared identifier is reported only once for each function it appears in.)
295366_0_4041.cpp: In function `int abs(int)':
295366_0_4041.cpp:39: error: `int abs(int)' used prior to declaration
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