View Compilation Error

0_0_6828842_29557.cpp:52: error: `i' was not declared in this scope
0_0_6828842_29557.cpp:52: error: `n' was not declared in this scope
0_0_6828842_29557.cpp:53: error: initializer expression list treated as compound expression
0_0_6828842_29557.cpp:53: error: expected `,' or `;' before '{' token