View Compilation Error

0_0_38886467_26177.cpp: In function 'void solve()':
0_0_38886467_26177.cpp:38:29: error: expected ';' before 'for'
   38 |                 ans = phi[b]
      |                             ^
      |                             ;
   39 |                 for (int i = b + 1 ; i <= d ; i++) {
      |                 ~~~          
0_0_38886467_26177.cpp:39:38: error: 'i' was not declared in this scope
   39 |                 for (int i = b + 1 ; i <= d ; i++) {
      |                                      ^