View Compilation Error

0_0_6501499_14964.cpp: In function `int main()':
0_0_6501499_14964.cpp:104: error: `cn' undeclared (first use this function)
0_0_6501499_14964.cpp:104: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_6501499_14964.cpp:104: error: expected `,' or `;' at end of input
0_0_6501499_14964.cpp:104: error: expected `}' at end of input
0_0_6501499_14964.cpp:104: error: expected `}' at end of input
0_0_6501499_14964.cpp:104: error: expected `}' at end of input