/in/foo.cc: In function 'void Build(long long int, long long int, long long int)':
/in/foo.cc:99:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
     int mid=ll+rr>>1;
             ~~^~~
/in/foo.cc: In function 'Ans Query(long long int, long long int, long long int)':
/in/foo.cc:114:19: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
     int mid=T[k].l+T[k].r>>1;
             ~~~~~~^~~~~~~
/in/foo.cc: In function 'void IntervalAdd(long long int, long long int, long long int, long long int, long long int)':
/in/foo.cc:149:19: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
     int mid=T[k].l+T[k].r>>1;
             ~~~~~~^~~~~~~
/in/foo.cc: In function 'void IntervalMemset(long long int, long long int, long long int)':
/in/foo.cc:168:16: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  int mid=T[k].l+T[k].r>>1;
          ~~~~~~^~~~~~~
/in/foo.cc: At global scope:
/in/foo.cc:173:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main()
      ^