View Compilation Error

0_0_39584980_16697.cpp: In function 'void init()':
0_0_39584980_16697.cpp:49:12: error: 'nf1' was not declared in this scope; did you mean 'nf'?
   49 |     f[0] = nf1[0] = 1;
      |            ^~~
      |            nf