foo.c: In function 'main':
foo.c:9:15: warning: comparisons like 'X<=Y<=Z' do not have their mathematical meaning [-Wparentheses]
    9 |         if(c++>b++>a){
      |            ~~~^~~~
foo.c:13:9: warning: 'y' is used uninitialized [-Wuninitialized]
   13 |         printf("%d %d %d %d %d",x,y,a,b,c);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
foo.c:5:15: note: 'y' was declared here
    5 |         int x,y;
      |               ^

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