View Compilation Error

0_0_38669274_32097.cpp: In lambda function:
0_0_38669274_32097.cpp:75:36: error: 's' was not declared in this scope
   75 |             f[u][0] = min(f[u][0], s - min(f[v][0], f[v][1]) + f[v][1]);
      |                                    ^