View Compilation Error

0_0_10968383_2062.c: In function `main':
0_0_10968383_2062.c:14: error: `int64' undeclared (first use in this function)
0_0_10968383_2062.c:14: error: (Each undeclared identifier is reported only once
0_0_10968383_2062.c:14: error: for each function it appears in.)
0_0_10968383_2062.c:14: error: syntax error before "n"
0_0_10968383_2062.c:16: error: `n' undeclared (first use in this function)