View Compilation Error

0_0_39595109_11153.cpp: In function 'void dfs(int, int)':
0_0_39595109_11153.cpp:44:5: error: 'ri' was not declared in this scope
   44 |     ri[u] = tme;
      |     ^~
0_0_39595109_11153.cpp:44:13: error: 'tme' was not declared in this scope; did you mean 'tm'?
   44 |     ri[u] = tme;
      |             ^~~
      |             tm