View Compilation Error

0_0_36266584_6086.cpp: In function 'int main()':
0_0_36266584_6086.cpp:34:17: error: 'a' was not declared in this scope
       if(!mp[i][a[j]] && !mp[i][1]) e[i][j] = true;
                 ^
0_0_36266584_6086.cpp:36:21: error: 'a' was not declared in this scope
      else if(!mp[i][a[j]] && !mp[i][a[j + 1]]) e[i][j] = true;
                     ^