Submission #371104

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Source Code Expand

#include <iostream>
#include <string>
#include <vector>
#include <map>
#include <set>
#include <stack>
#include <queue>
#include <cstdint>
#include <algorithm>
#include <cstdlib>
using namespace std;

int main() {
	vector<string> v;
	for (string line; cin >> line;) {
		while (line != "not" && v.size() >= 2 && v[v.size() - 2] == "not" && v[v.size() - 1] == "not") {
			v.pop_back();
			v.pop_back();
		}
		v.push_back(line);
	}
	for (int i = 0; i < v.size(); i++) {
		if (i != 0) cout << " ";
		cout << v[i];
	}
	cout << endl;
	return 0;
}

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