View Compilation Error

0_0_38736693_10499.cpp: In function 'int main()':
0_0_38736693_10499.cpp:85:77: error: 'z' was not declared in this scope
   85 |                         ans = min(min(ans, pdis(s,nd[j])), pdis(s,nd[j+1]));z
      |                                                                             ^