View Compilation Error

0_0_10208137_7707.cpp: In function `int main()':
0_0_10208137_7707.cpp:5: error: expected `;' before "int"
0_0_10208137_7707.cpp:6: error: `a' undeclared (first use this function)
0_0_10208137_7707.cpp:6: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_10208137_7707.cpp:6: error: `b' undeclared (first use this function)
0_0_10208137_7707.cpp:6: error: `n' undeclared (first use this function)
0_0_10208137_7707.cpp:8: error: `i' undeclared (first use this function)
0_0_10208137_7707.cpp:14: error: `k' undeclared (first use this function)