foo.c: In function 'FindMaxNeg':
foo.c:4:13: warning: variable 'm' set but not used [-Wunused-but-set-variable]
    4 |         int m,max;
      |             ^
foo.c:22:16: warning: 'max' may be used uninitialized [-Wmaybe-uninitialized]
   22 |         return max;
      |                ^~~
foo.c:4:15: note: 'max' was declared here
    4 |         int m,max;
      |               ^~~

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