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  1. #include<iostream>
  2. #include<cmath>
  3. #include<algorithm>
  4. #include<iomanip>
  5. #include<climits>
  6. #include<numeric>
  7. #include<set>
  8. #include<sstream>
  9. #include<map>
  10. #include<vector>
  11. #include<string>
  12. #include<regex>
  13.  
  14. using namespace std;
  15.  
  16. const long long MOD = (long long)(1e9 + 7);
  17.  
  18. vector<string> split(const string& haystack, const string& needle) {
  19. 	vector<string> result;
  20. 	size_t start_pos = 0;
  21. 	size_t found_pos = haystack.find(needle, start_pos);
  22. 	while (found_pos != string::npos) {
  23. 		size_t count = found_pos - start_pos;
  24. 		string token = haystack.substr(start_pos, count);
  25. 		if (!token.empty()) {
  26. 			result.push_back(token);
  27. 		}
  28. 		start_pos = found_pos + needle.length();
  29. 		found_pos = haystack.find(needle, start_pos);
  30. 	}
  31.  
  32. 	string last_token = haystack.substr(start_pos);
  33. 	if (!last_token.empty()) {
  34. 		result.push_back(last_token);
  35. 	}
  36. 	return result;
  37. }
  38.  
  39. int main() {
  40. 	int query;cin >> query;
  41. 	map<char, int> value = {
  42. 		{'I',1},{'V',5},{'X',10},{'L',50},{'C',100},{'D',500},{'M',1000}
  43. 	};
  44. 	for (int i = 1;i <= query;i++) {
  45. 		string s;cin >> s;
  46. 		long long sum = value[s.back()];
  47. 		for (int j = s.size() - 2;j >= 0;j--) {
  48. 			if (value[s[j]] >= value[s[j + 1]]) {
  49. 				sum = sum + value[s[j]];
  50. 			}
  51. 			else {
  52. 				sum = sum - value[s[j]];
  53. 			}
  54. 		}
  55. 		cout << sum << endl;
  56. 	}
  57. 	return 0;
  58. }
  59.  
  60.  
Success #stdin #stdout 0.02s 5292KB
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https://ideone.com/Ipb435
language:
C++ (gcc 8.3)
created:
1 day ago
visibility:
public

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