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  1. #include <iostream>
  2. #include <set>
  3. using namespace std;
  4.  
  5. int tab[100];
  6.  
  7.  
  8.  
  9. /******* way 1 ********/
  10.  
  11. struct comp1 {
  12. 	bool operator()(const int &a, const int &b){
  13. 		return tab[a] < tab[b];
  14. 	}
  15. };
  16.  
  17. void func1(){
  18. 	set<int, comp1> S;
  19.  
  20. 	for(int i = 0; i < 11; i++) S.insert(i);
  21. 	for(int val: S) printf("%d ", val);
  22. 	printf("\n");
  23. }
  24.  
  25.  
  26.  
  27. /******* way2 *********/
  28.  
  29. void func2(){
  30. 	auto my_comp = [&](int a, int b)->bool {
  31. 		return tab[a] < tab[b];
  32. 	};
  33.  
  34. 	set<int, decltype(my_comp)> S(my_comp);
  35.  
  36. 	for(int i = 0; i < 11; i++) S.insert(i);
  37. 	for(int val: S) printf("%d ", val);
  38. 	printf("\n");
  39. }
  40.  
  41.  
  42.  
  43.  
  44. /**********************/
  45.  
  46. int main() {
  47. 	for(int i = 0; i < 11; i++) tab[i] = (i*i*i) % 11;
  48. 	func1();
  49. 	func2();
  50. 	return 0;
  51. }
Success #stdin #stdout 0s 3428KB
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Standard input is empty
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0 1 7 9 5 3 8 6 2 4 10 
0 1 7 9 5 3 8 6 2 4 10
https://ideone.com/191tt3
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
secret

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