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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. const int MN = 105;
  5. char board[MN][MN];
  6. int main()
  7. {
  8. 	int n;
  9. 	cin >> n;
  10. 	for(int i = 0; i < n; ++i) cin >> board[i];
  11. 	long long ans = 0;
  12. 	for(int i = 0; i < n; ++i){
  13. 		int cnt = 0;
  14. 		for(int j = 0; j < n; ++j){
  15. 			cnt += board[i][j] == 'C';
  16. 		}
  17. 		if (cnt > 1){
  18. 			ans += cnt * (cnt - 1) / 2;
  19. 		}
  20. 		cnt = 0;
  21. 		for(int j = 0; j < n; ++j){
  22. 			cnt += board[j][i] == 'C';
  23. 		}
  24. 		if (cnt > 1){
  25. 			ans += cnt * (cnt - 1) / 2;
  26. 		}
  27. 	}
  28. 	cout << ans << '\n';
  29. }
  30.  
Success #stdin #stdout 0s 3424KB
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stdin
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4
CC..
C..C
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stdout
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9
https://ideone.com/8i1SUj
codeforces round 343 div2 A
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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