foo.cc: In function 'int main()':
foo.cc:21:9: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   21 |   if(max=a[i])
      |      ~~~^~~~~
foo.cc:24:8: warning: 'c' may be used uninitialized in this function [-Wmaybe-uninitialized]
   24 |  cout<<c;
      |        ^

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