foo.c: In function 'main':
foo.c:6:12: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'scanf'
    6 |            scanf("%d%d",&x,&y);
      |            ^~~~~
foo.c:9:20: error: 'y' undeclared (first use in this function)
    9 |                 if(y>0)
      |                    ^
foo.c:9:20: note: each undeclared identifier is reported only once for each function it appears in

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