View Compilation Error

0_0_7395740_3773.c: In function `main':
0_0_7395740_3773.c:5: error: `_int64' undeclared (first use in this function)
0_0_7395740_3773.c:5: error: (Each undeclared identifier is reported only once
0_0_7395740_3773.c:5: error: for each function it appears in.)
0_0_7395740_3773.c:5: error: syntax error before "m"
0_0_7395740_3773.c:9: error: `a' undeclared (first use in this function)
0_0_7395740_3773.c:12: error: `b' undeclared (first use in this function)
0_0_7395740_3773.c:13: error: `t' undeclared (first use in this function)
0_0_7395740_3773.c:14: error: `m' undeclared (first use in this function)