/in/foo.c: In function 'main':
/in/foo.c:72:6: warning: 'maxneg' may be used uninitialized in this function [-Wmaybe-uninitialized]
    if(b[i]>maxneg)
      ^
/in/foo.c:61:9: note: 'maxneg' was declared here
  int i, maxneg;
         ^~~~~~
/in/foo.c:50:6: warning: 'maxneg' may be used uninitialized in this function [-Wmaybe-uninitialized]
    if(a[i]>maxneg)
      ^
/in/foo.c:39:9: note: 'maxneg' was declared here
  int i, maxneg;
         ^~~~~~
/in/foo.c: In function 'FindMaxNeg2':
/in/foo.c:72:6: warning: 'maxneg' may be used uninitialized in this function [-Wmaybe-uninitialized]
    if(b[i]>maxneg)
      ^