View Compilation Error

0_0_39074257_12444.cpp: In function 'void solve()':
0_0_39074257_12444.cpp:80:16: error: 'inf' was not declared in this scope; did you mean 'sinf'?
   80 |     int l=0, r=inf, ans=-1;
      |                ^~~
      |                sinf
0_0_39074257_12444.cpp:84:21: error: 'ans' was not declared in this scope; did you mean 'abs'?
   84 |         if(ok(mid)) ans=mid, r=mid-1; else l=mid+1;
      |                     ^~~
      |                     abs
0_0_39074257_12444.cpp:86:20: error: 'ans' was not declared in this scope; did you mean 'abs'?
   86 |     printf("%d\n", ans);
      |                    ^~~
      |                    abs