/in/foo.cc: In function 'bool cmp(const combo&, const combo&)':
/in/foo.cc:9:41: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
    9 |         return a.sum<b.sum||a.sum==b.sum&&a.mx<b.mx||a.sum==b.sum&&a.mx==b.mx&&a.mn<b.mn
      |                             ~~~~~~~~~~~~^~~~~~~~~~~
/in/foo.cc:9:78: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
    9 |         return a.sum<b.sum||a.sum==b.sum&&a.mx<b.mx||a.sum==b.sum&&a.mx==b.mx&&a.mn<b.mn
      |                                                      ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
/in/foo.cc:10:47: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   10 |         ||a.sum==b.sum&&a.mx==b.mx&&a.mn==b.mn&&a.id<b.id;
      |           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~