/in/foo.cc: In function 'bool cmp(work, work)':
/in/foo.cc:11:37: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   11 |         return a.nd>b.nd||a.nd==b.nd&&a.xh<b.xh;
      |                           ~~~~~~~~~~^~~~~~~~~~~
/in/foo.cc: In function 'int main()':
/in/foo.cc:16:21: warning: unused variable 'x' [-Wunused-variable]
   16 |         for(int i=1,x;i<=n;i++)
      |                     ^