View Compilation Error

0_0_2619088_18455.cpp:2: error: `__int' does not name a type
0_0_2619088_18455.cpp: In function `int main()':
0_0_2619088_18455.cpp:5: error: `a' undeclared (first use this function)
0_0_2619088_18455.cpp:5: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_2619088_18455.cpp:5: error: `b' undeclared (first use this function)