View Compilation Error

0_0_38864109_29741.cpp: In function 'void getSG()':
0_0_38864109_29741.cpp:12:17: error: 'itn' was not declared in this scope; did you mean 'int'?
   12 |             for(itn j  = 0;j<=i;j++){
      |                 ^~~
      |                 int