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  1.  #include <cstdio>
  2. #include <algorithm>
  3. using namespace std;
  4.  
  5. int l, r, a, b, ret;
  6.  
  7. int main () {
  8.     scanf("%d %d", &l, &r);
  9.     for(a = l; a <= r; a++)
  10.         for(b = a; b <= r; b++)
  11.             ret = max(ret, a ^ b);
  12.     printf("%d\n", ret);
  13.     return 0;
  14. }
Success #stdin #stdout 0s 4512KB
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https://ideone.com/Zn6Mxq
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
public

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