View Compilation Error

0_0_8299507_14491.cpp: In function `int main()':
0_0_8299507_14491.cpp:4: error: `n' undeclared (first use this function)
0_0_8299507_14491.cpp:4: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_8299507_14491.cpp:4: error: expected primary-expression before ')' token
0_0_8299507_14491.cpp:5: error: expected primary-expression before '}' token
0_0_8299507_14491.cpp:5: error: expected `;' before '}' token