foo.cc:11:11: error: 'INT_MAX' was not declared in this scope
 int r=0,l=INT_MAX-1,mid,ans=Inf,sum=0;
           ^~~~~~~
foo.cc:11:11: note: suggested alternative: 'INT8_MAX'
 int r=0,l=INT_MAX-1,mid,ans=Inf,sum=0;
           ^~~~~~~
           INT8_MAX
foo.cc: In function 'bool twice(long long int)':
foo.cc:27:2: error: 'sum' was not declared in this scope
  sum=abs(tmp-t);
  ^~~
foo.cc: In function 'int main()':
foo.cc:40:3: error: 'mid' was not declared in this scope
   mid=(l+r)>>1;
   ^~~
foo.cc:40:3: note: suggested alternative: 'main'
   mid=(l+r)>>1;
   ^~~
   main
foo.cc:43:3: error: 'ans' was not declared in this scope
   ans=min(ans,sum);
   ^~~
foo.cc:43:3: note: suggested alternative: 'abs'
   ans=min(ans,sum);
   ^~~
   abs
foo.cc:43:15: error: 'sum' was not declared in this scope
   ans=min(ans,sum);
               ^~~
foo.cc:45:2: error: 'ans' was not declared in this scope
  ans=min(ans,sum);
  ^~~
foo.cc:45:2: note: suggested alternative: 'abs'
  ans=min(ans,sum);
  ^~~
  abs
foo.cc:45:14: error: 'sum' was not declared in this scope
  ans=min(ans,sum);
              ^~~

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