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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5. int i1 = 20;
  6. int i2 = 20;
  7. auto s = [&]{ return i1-i2; };
  8. std::cout << s() << std::endl;
  9. i1 = 40;
  10. std::cout << s() << std::endl;
  11. return 0;
  12. }
Success #stdin #stdout 0s 4532KB
stdin
Standard input is empty
stdout
0
20