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- #include <iostream>
- #include <vector>
- #include <map>
- #include <string>
- using namespace std;
- int main()
- {
- string input, buff = "";
- map<string, bool> blocks;
- vector<string> output;
- getline(cin, input);
- for (int i = 0; i < input.size(); i++)
- {
- buff += input[i];
- if (!blocks[buff])
- {
- blocks[buff] = true;
- output.push_back(buff);
- buff = "";
- }
- else if (i == input.size() - 1)
- {
- output.push_back(buff);
- }
- }
- for (int i = 0; i < output.size(); i++)
- {
- cout << output[i] << ' ';
- }
- return 0;
- }
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