foo.cc: In function 'int main()':
foo.cc:11:4: error: 'j' was not declared in this scope
    j=n%i;
    ^
foo.cc:15:18: error: 'i' was not declared in this scope
  printf("%d",max(i,j));
                  ^
foo.cc:15:20: error: 'j' was not declared in this scope
  printf("%d",max(i,j));
                    ^

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