View Compilation Error

982470_0_0_25674.c: In function `main':
982470_0_0_25674.c:5: error: `_int64' undeclared (first use in this function)
982470_0_0_25674.c:5: error: (Each undeclared identifier is reported only once
982470_0_0_25674.c:5: error: for each function it appears in.)
982470_0_0_25674.c:5: error: syntax error before "n"
982470_0_0_25674.c:9: error: `n' undeclared (first use in this function)
982470_0_0_25674.c:10: error: `k' undeclared (first use in this function)
982470_0_0_25674.c:11: error: `temp' undeclared (first use in this function)
982470_0_0_25674.c:13: error: `t' undeclared (first use in this function)
982470_0_0_25674.c:16: error: `result' undeclared (first use in this function)