/in/foo.cc:3:9: error: macro names must be identifiers
 #define 9223372036854775807
         ^~~~~~~~~~~~~~~~~~~
/in/foo.cc:5:62: error: 'LONG_LONG_MAX' was not declared in this scope
 long long n,m,dr[100010],i,now,maxn,node,sum[100010],l,r,MIN=LONG_LONG_MAX,mid,f,day[100010];
                                                              ^~~~~~~~~~~~~
/in/foo.cc: In function 'int comp(int)':
/in/foo.cc:12:8: error: 'f' was not declared in this scope
   if(x>f)
        ^
/in/foo.cc:15:4: error: 'day' was not declared in this scope
    day[p[i].b]-=p[i].d;
    ^~~
/in/foo.cc:21:4: error: 'day' was not declared in this scope
    day[p[i].b]-=p[i].d;
    ^~~
/in/foo.cc:24:3: error: 'f' was not declared in this scope
   f=x;
   ^
/in/foo.cc:27:21: error: 'day' was not declared in this scope
     sum[i]=sum[i-1]+day[i];
                     ^~~
/in/foo.cc: In function 'int main()':
/in/foo.cc:52:5: error: 'mid' was not declared in this scope
     mid=(l+r)/2;
     ^~~