View Compilation Error

0_0_39821884_20825.cpp: In function 'int main()':
0_0_39821884_20825.cpp:60:70: error: 'i' was not declared in this scope
   60 |                         ans = ans = min(ans, dis[2][0] + (k - dis[2][i]) / W * W + W);
      |                                                                      ^