View Compilation Error

0_0_32580130_12781.cpp: In function 'int main()':
0_0_32580130_12781.cpp:24:9: error: 'map' was not declared in this scope
         map<int, int> table;
         ^
0_0_32580130_12781.cpp:24:13: error: expected primary-expression before 'int'
         map<int, int> table;
             ^
0_0_32580130_12781.cpp:27:21: error: 'table' was not declared in this scope
                 if (table[n]) {cout << table[n] << endl; continue;}
                     ^
0_0_32580130_12781.cpp:35:17: error: 'table' was not declared in this scope
                 table[n] = v[0];
                 ^