View Compilation Error

0_0_39021688_26116.cpp: In function 'int main()':
0_0_39021688_26116.cpp:10:17: error: 'k' was not declared in this scope
   10 |             for(k=1;k<m;b++)
      |                 ^
0_0_39021688_26116.cpp:12:37: error: 'k' was not declared in this scope
   12 |             printf("%d\n",a[j][b]=j*k);
      |                                     ^