View Compilation Error

0_0_10437064_27347.cpp:3: error: `n' was not declared in this scope
0_0_10437064_27347.cpp:3: error: `m' was not declared in this scope
0_0_10437064_27347.cpp:4: error: initializer expression list treated as compound expression
0_0_10437064_27347.cpp:4: error: expected `,' or `;' before '{' token
0_0_10437064_27347.cpp: In function `int main()':
0_0_10437064_27347.cpp:23: error: `f' cannot be used as a function