View Compilation Error

0_0_9108464_693.cpp:20: error: `n' was not declared in this scope
0_0_9108464_693.cpp:21: error: expected `,' or `;' before '{' token
0_0_9108464_693.cpp: In function `int main()':
0_0_9108464_693.cpp:104: error: `prim' cannot be used as a function