View Compilation Error

0_0_30175445_17675.cpp: In function 'int main()':
0_0_30175445_17675.cpp:17:25: error: 'j' was not declared in this scope
             cin >> x >> j;
                         ^
0_0_30175445_17675.cpp:18:17: error: 'map' was not declared in this scope
             k = map[x];
                 ^