View Compilation Error

0_0_10201528_28018.cpp: In function `int main()':
0_0_10201528_28018.cpp:8: error: expected primary-expression before "int"
0_0_10201528_28018.cpp:8: error: expected `;' before "int"
0_0_10201528_28018.cpp:13: error: `a' undeclared (first use this function)
0_0_10201528_28018.cpp:13: error: (Each undeclared identifier is reported only once for each function it appears in.)