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  1. // iostream is too mainstream
  2. #include <cstdio>
  3. // bitch please
  4. #include <iostream>
  5. #include <algorithm>
  6. #include <cstdlib>
  7. #include <vector>
  8. #include <set>
  9. #include <map>
  10. #include <queue>
  11. #include <stack>
  12. #include <list>
  13. #include <cmath>
  14. #include <iomanip>
  15. #define dibs reserve
  16. #define OVER9000 123456789012345678LL
  17. #define ALL_THE(CAKE,LIE) for(auto LIE =CAKE.begin(); LIE != CAKE.end(); LIE++)
  18. #define tisic 47
  19. #define soclose 1e-8
  20. #define chocolate win
  21. // so much chocolate
  22. #define patkan 9
  23. #define ff first
  24. #define ss second
  25. #define abs(x) ((x < 0)?-(x):x)
  26. #define uint unsigned int
  27. #define dbl long double
  28. using namespace std;
  29. // mylittledoge
  30.  
  31. int main() {
  32. 	cin.sync_with_stdio(0);
  33. 	cin.tie(0);
  34. 	string s;
  35. 	cin >> s;
  36. 	int t =0, o =0, ans1 =0, ans2 =0;
  37. 	for(int i =0; i < s.length(); i++) {
  38. 		if(s[i] == '2') t++;
  39. 		else o++;
  40. 		if(s[i] == '2') ans1 +=o;
  41. 		else ans2 +=t;}
  42. 	cout << min(ans1,ans2) << "\n";
  43. 	return 0;}
  44.  
  45. // look at my code
  46. // my code is amazing
  47.  
Success #stdin #stdout 0s 3476KB
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https://ideone.com/tYjN3g
CT S02E10 G
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
secret

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