View Compilation Error

0_0_23858894_21751.cpp: In function 'int main()':
0_0_23858894_21751.cpp:47:29: error: 'e' was not declared in this scope
             if(to == '>' && e[x][y]>num)
                             ^
0_0_23858894_21751.cpp:49:31: error: 'e' was not declared in this scope
             if(from == '<' && e[y][x]>num)
                               ^