View Compilation Error

875115_0_0_30837.cpp: In function `void Sort(int*, int)':
875115_0_0_30837.cpp:23: error: `i' undeclared (first use this function)
875115_0_0_30837.cpp:23: error: (Each undeclared identifier is reported only once for each function it appears in.)
875115_0_0_30837.cpp:23: error: `y' undeclared (first use this function)
875115_0_0_30837.cpp: At global scope:
875115_0_0_30837.cpp:26: error: expected declaration before '}' token