View Compilation Error

0_0_12365605_13661.cpp:4:10: #include expects "FILENAME" or <FILENAME>
0_0_12365605_13661.cpp:6: error: `maxn' was not declared in this scope
0_0_12365605_13661.cpp:7: error: `maxn' was not declared in this scope
0_0_12365605_13661.cpp: In function `int main()':
0_0_12365605_13661.cpp:13: error: `vis' undeclared (first use this function)
0_0_12365605_13661.cpp:13: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_12365605_13661.cpp:18: error: `num' undeclared (first use this function)