View Compilation Error

0_0_32001800_375.cpp:31:2: error: expected unqualified-id before '/' token
 */
  ^
0_0_32001800_375.cpp:31:2: error: expected constructor, destructor, or type conversion before '/' token
0_0_32001800_375.cpp: In function 'int main()':
0_0_32001800_375.cpp:79:5: error: redefinition of 'int main()'
 int main()//我晕，__int64不然过，，，long long 就过了，错误是 Getting complication error information failed!  求解释！
     ^
0_0_32001800_375.cpp:3:5: note: 'int main()' previously defined here
 int main()
     ^
0_0_32001800_375.cpp:87:19: error: 'a' was not declared in this scope
             if(m<=a[i]&&a[i]<=n)
                   ^
0_0_32001800_375.cpp:89:16: error: 'a' was not declared in this scope
             if(a[i]>n)
                ^