제출 #1016417

#제출 시각아이디문제언어결과실행 시간메모리
1016417pavementLongest Trip (IOI23_longesttrip)C++17
15 / 100
9 ms552 KiB
#include "longesttrip.h"
#include <bits/stdc++.h>
using namespace std;

#define pb push_back

vector<int> longest_trip(int N, int D) {
	vector<int> ret;
	if (D == 3) {
		ret.resize(N);
		iota(ret.begin(), ret.end(), 0);
		return ret;
	} else if (D == 2) {
		deque<int> dq;
		int st = -1;
		dq.pb(0);
		if (are_connected({0}, {1})) {
			dq.pb(1);
			st = 2;
		} else {
			dq.pb(2);
			dq.pb(1);
			st = 3;
		}
		for (int i = st; i < N; i++) {
			if (are_connected({i}, {dq.back()})) {
				dq.pb(i);
			} else {
				dq.push_front(i);
			}
		}
		ret = vector<int>(dq.begin(), dq.end());
		return ret;
	} else {
		
	}
}

컴파일 시 표준 에러 (stderr) 메시지

longesttrip.cpp: In function 'std::vector<int> longest_trip(int, int)':
longesttrip.cpp:37:1: warning: control reaches end of non-void function [-Wreturn-type]
   37 | }
      | ^
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