foo.c: In function 'main':
foo.c:23:16: error: 'temp' undeclared (first use in this function)
   23 |         t-=10; temp=t;
      |                ^~~~
foo.c:23:16: note: each undeclared identifier is reported only once for each function it appears in
foo.c:36:46: error: 'sxore2' undeclared (first use in this function); did you mean 'score2'?
   36 |                                         else{sxore2=y;}
      |                                              ^~~~~~
      |                                              score2
foo.c:40:9: error: 'score' undeclared (first use in this function); did you mean 'score2'?
   40 |         score=score2-score1;
      |         ^~~~~
      |         score2

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