View Compilation Error

77278_0_22540.cpp: In function `int main()':
77278_0_22540.cpp:20: error: name lookup of `i' changed for new ISO `for' scoping
77278_0_22540.cpp:17: error:   using obsolete binding at `i'
77278_0_22540.cpp:25: error: `abs' undeclared (first use this function)
77278_0_22540.cpp:25: error: (Each undeclared identifier is reported only once for each function it appears in.)