foo.cc: In function 'bool cmp1(yy, yy)':
foo.cc:22:33: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   22 |         return a.b>b.b||a.b==b.b&&a.a<b.a;
      |                         ~~~~~~~~^~~~~~~~~
foo.cc: In function 'bool cmp2(zz, zz)':
foo.cc:26:33: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   26 |         return a.f>b.f||a.f==b.f&&a.e<b.e;
      |                         ~~~~~~~~^~~~~~~~~
foo.cc: In function 'int main()':
foo.cc:51:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   51 |         for(i=1;i<=k;i++)cout<<q1[i].a<<" ";cout<<endl;
      |         ^~~
foo.cc:51:45: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   51 |         for(i=1;i<=k;i++)cout<<q1[i].a<<" ";cout<<endl;
      |                                             ^~~~

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