View Compilation Error

0_0_33176172_19944.cpp: In function 'int jian(int*, int*, int, int)':
0_0_33176172_19944.cpp:45:9: error: 'D' was not declared in this scope
         D[cnt++] = (t % 10 + 10) % 10;
         ^
0_0_33176172_19944.cpp:53:12: error: 'D' was not declared in this scope
     while (D[cnt - 1] == 0)
            ^
0_0_33176172_19944.cpp:55:13: error: 'D' was not declared in this scope
     reverse(D, D + cnt);
             ^