Submission #277513

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
277513	2020-08-21T05:33:55 Z	임성재(#5118)	Travelling Salesperson (CCO20_day2problem1)	C++17	0 / 25	7000 ms	25376 KB

Main

#include<bits/stdc++.h>
using namespace std;

#define fast ios::sync_with_stdio(false); cin.tie(0);
#define fi first
#define se second
#define em emplace
#define eb emplace_back
#define mp make_pair
#define all(v) (v).begin(), (v).end()

typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
const int inf = 1e9;
const ll INF = 1e18;

int n;
int g[2010][2010];
vector<int> ans, v;

void f(int r) {
	ans.clear();

	int s = r == 1 ? 2 : 1; 
	
	ans.eb(s);
	int m = s;

	for(int i=1; i<=n; i++) {
		if(i == r || i == s) continue;

		v.clear();

		bool flag = false;
		for(int j=0; j<ans.size(); j++) {
			if(!flag && ans[j] == m) {
				flag = true;
				if(g[m][i] == 1) {
					v.eb(m);
					v.eb(i);

					if(j+1 < ans.size() && g[i][ans[j+1]] == 1) m = ans[j+1];
					else m = i;
				}
				else {
					v.eb(i);
					v.eb(m);

					if(j-1 >= 0 && g[i][ans[j-1]] == 2) m = ans[j-1];
					else m = i;
				}
			}
			else v.eb(ans[j]);
		}

		ans = v;
	}
	
	if(g[ans.front()][ans.back()] == 2) {
		reverse(ans.begin()+1, ans.end());
		reverse(all(ans));
	}

	if(g[ans.back()][r] == 1) reverse(ans.begin(), ans.end()-1);

	reverse(all(ans));

	cout << ans.size() + 1 << "\n";
	cout << r << " ";
	for(auto i : ans) {
		cout << i << " ";
	}
	cout << "\n";
}

int main() {
	fast;

	cin >> n;

	for(int i=2; i<=n; i++) {
		string s;
		cin >> s;

		for(int j=1; j<i; j++) {
			g[i][j] = g[j][i] = (s[j-1] == 'R') + 1;
		}
	}

	for(int i=1; i<=n; i++) {
		f(i);
	}
}

Compilation message

Main.cpp: In function 'void f(int)':
Main.cpp:36:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |   for(int j=0; j<ans.size(); j++) {
      |                ~^~~~~~~~~~~
Main.cpp:43:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   43 |      if(j+1 < ans.size() && g[i][ans[j+1]] == 1) m = ans[j+1];
      |         ~~~~^~~~~~~~~~~~

Subtask #1

0 / 25.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	384 KB	Output is correct
2	Correct	0 ms	384 KB	Output is correct
3	Correct	1 ms	384 KB	Output is correct
4	Correct	1 ms	384 KB	Output is correct
5	Correct	0 ms	384 KB	Output is correct
6	Correct	1 ms	384 KB	Output is correct
7	Correct	1 ms	384 KB	Output is correct
8	Correct	1 ms	384 KB	Output is correct
9	Correct	1 ms	384 KB	Output is correct
10	Correct	0 ms	384 KB	Output is correct
11	Correct	1 ms	384 KB	Output is correct
12	Correct	1 ms	384 KB	Output is correct
13	Correct	1 ms	384 KB	Output is correct
14	Correct	1 ms	384 KB	Output is correct
15	Correct	1 ms	384 KB	Output is correct
16	Execution timed out	7020 ms	25376 KB	Time limit exceeded
17	Halted	0 ms	0 KB	-