View Compilation Error

0_0_39400223_20211.cpp: In function 'bool cmp(node, node)':
0_0_39400223_20211.cpp:14:9: error: 'retrn' was not declared in this scope
   14 |         retrn a.w<b.w;
      |         ^~~~~
0_0_39400223_20211.cpp: In function 'int find(int)':
0_0_39400223_20211.cpp:22:9: error: 'retuen' was not declared in this scope
   22 |         retuen find(per[x]);
      |         ^~~~~~