View Compilation Error

0_0_1513112_30595.c:9: error: syntax error before "x"
0_0_1513112_30595.c: In function `sort':
0_0_1513112_30595.c:12: error: `n' undeclared (first use in this function)
0_0_1513112_30595.c:12: error: (Each undeclared identifier is reported only once
0_0_1513112_30595.c:12: error: for each function it appears in.)
0_0_1513112_30595.c:14: error: `x' undeclared (first use in this function)