View Compilation Error

0_0_10077625_3808.cpp:7: error: `_int64' does not name a type
0_0_10077625_3808.cpp:8: error: `_int64' does not name a type
0_0_10077625_3808.cpp:9: error: `_int64' does not name a type
0_0_10077625_3808.cpp: In function `int main()':
0_0_10077625_3808.cpp:23: error: `a' undeclared (first use this function)
0_0_10077625_3808.cpp:23: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_10077625_3808.cpp:24: error: `b' undeclared (first use this function)
0_0_10077625_3808.cpp:25: error: `s' undeclared (first use this function)