View Compilation Error

0_0_10990388_28056.cpp: In function `int main(int, char**)':
0_0_10990388_28056.cpp:7: error: a function-definition is not allowed here before '{' token
0_0_10990388_28056.cpp:7: error: expected `,' or `;' before '{' token
0_0_10990388_28056.cpp:23: error: `comp' undeclared (first use this function)
0_0_10990388_28056.cpp:23: error: (Each undeclared identifier is reported only once for each function it appears in.)