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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	int l,r,x;
  6.     cin >> l >> r >> x;
  7.     int poss = 0;
  8.     for(int i = l; i <= r; i++){
  9.         for(int j = i+1; j <= r; j++){
  10.             if((i ^ j) == x) poss++;
  11.             if((i ^ 1) == x) poss++;
  12.         }
  13.     }
  14.     cout << poss;
  15. 	return 0;
  16. }
Success #stdin #stdout 1.2s 5432KB
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stdin
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12345 56789 34567
stdout
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33900
https://ideone.com/TL5nrO
language:
C++14 (gcc 8.3)
created:
2 years ago
visibility:
public

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