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0_0_11649031_12078.cpp:3:19: strlib.h: No such file or directory
0_0_11649031_12078.cpp: In function `int main()':
0_0_11649031_12078.cpp:18: error: `abs' undeclared (first use this function)
0_0_11649031_12078.cpp:18: error: (Each undeclared identifier is reported only once for each function it appears in.)