View Compilation Error

0_0_9730382_24345.cpp:33: error: expected unqualified-id before '/' token
0_0_9730382_24345.cpp:33: error: expected `,' or `;' before '/' token
0_0_9730382_24345.cpp: In function `int main()':
0_0_9730382_24345.cpp:35: error: redefinition of `int main()'
0_0_9730382_24345.cpp:6: error: `int main()' previously defined here
0_0_9730382_24345.cpp:40: error: `a' undeclared (first use this function)
0_0_9730382_24345.cpp:40: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_9730382_24345.cpp: At global scope:
0_0_9730382_24345.cpp:47: error: expected unqualified-id before '/' token
0_0_9730382_24345.cpp:47: error: expected constructor, destructor, or type conversion before '/' token
0_0_9730382_24345.cpp:47: error: expected `,' or `;' before '/' token