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  1. #include <iostream>
  2. #include <cstdio>
  3. #include <map>
  4. using namespace std;
  5.  
  6. int main() {
  7. 	int b=0, cnt=0;
  8. 	map <int, int> a;
  9. 	for(int i=0; i<4; i++) {
  10. 		scanf("%d", &b);
  11. 		a[b]++;
  12. 	}
  13. 	for(map <int, int>::iterator ii=a.begin(); ii!=a.end(); ii++) {
  14. 		if((*ii).second==4) cnt+=3;
  15. 		else if((*ii).second==3) cnt+=2;
  16. 		else if((*ii).second==2) cnt++;
  17. 	}
  18. 	printf("%d", cnt);
  19. 	return 0;
  20. }
Success #stdin #stdout 0s 3476KB
comments (?)
stdin
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7 7 7 7
stdout
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3
https://ideone.com/a5XhpJ
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
secret

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