23 lines
390 B
C++
23 lines
390 B
C++
#include <iostream>
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#include <vector>
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#include <unordered_set>
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using namespace std;
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vector<string> collect_lines(istream& is)
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{
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unordered_set<string> s;
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for (string line; getline(is, line); )
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s.insert(line);
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return vector<string>(s.begin(), s.end());
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}
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int main() {
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auto lines = collect_lines(cin);
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for (const string& line : lines)
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cout << line << endl;
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try {
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}
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return 0;
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}
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