foo.c: In function 'main':
foo.c:51:29: error: 'temp' undeclared (first use in this function)
   51 |                 printf("%d",temp);
      |                             ^~~~
foo.c:51:29: note: each undeclared identifier is reported only once for each function it appears in
foo.c:13:23: warning: variable 't' set but not used [-Wunused-but-set-variable]
   13 |         int cnt=0,s=0,t=0;
      |                       ^

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