View Compilation Error

0_0_12280329_28283.cpp: In function `int main()':
0_0_12280329_28283.cpp:10: error: `abs' undeclared (first use this function)
0_0_12280329_28283.cpp:10: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_12280329_28283.cpp:17: error: stray '\163' in program
0_0_12280329_28283.cpp:17: error: stray '\187' in program
0_0_12280329_28283.cpp:18: error: expected `;' before '}' token