View Compilation Error

0_0_5213826_12833.c: In function `main':
0_0_5213826_12833.c:9: error: `temp' undeclared (first use in this function)
0_0_5213826_12833.c:9: error: (Each undeclared identifier is reported only once
0_0_5213826_12833.c:9: error: for each function it appears in.)
0_0_5213826_12833.c:10: error: `o' undeclared (first use in this function)