View Compilation Error

0_0_39604051_19280.cpp: In lambda function:
0_0_39604051_19280.cpp:106:19: error: 'LL' was not declared in this scope; did you mean 'll'?
  106 |         sqr[u] = (LL)(a[u] * a[u]);
      |                   ^~
      |                   ll