View Compilation Error

0_0_38634671_32706.cpp:7:1: error: 'vector' does not name a type; did you mean 'perror'?
 vector<int> p;
 ^~~~~~
 perror
0_0_38634671_32706.cpp: In function 'void get_primes()':
0_0_38634671_32706.cpp:16:10: error: 'p' was not declared in this scope
          p.push_back(i);
          ^
0_0_38634671_32706.cpp:19:21: error: 'p' was not declared in this scope
         for(int j=0;p[j]*i<=1000010;j++)
                     ^