foo.cc: In function 'int main()':
foo.cc:28:11: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   28 |  if(s[n-1]='0')
foo.cc:29:21: error: 'i' was not declared in this scope
   29 |   ans=max(ans,min(n-i-R,minD));
      |                     ^

Found 10 testcases.
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