View Compilation Error

0_0_30119017_1594.cpp: In function 'int main()':
0_0_30119017_1594.cpp:66:21: error: invalid type argument of unary '*' (have 'int')
                 if(*it != --vec.end())
                     ^
0_0_30119017_1594.cpp:109:21: error: invalid type argument of unary '*' (have 'int')
                 if(*it != --vec.end())
                     ^