제출 #971916

#제출 시각아이디문제언어결과실행 시간메모리
971916thinknoexit가장 긴 여행 (IOI23_longesttrip)C++17
5 / 100
8 ms600 KiB
#include <bits/stdc++.h>
#include "longesttrip.h"
using namespace std;
using ll = long long;
int n;
vector<int> longest_trip(int N, int D) {
    n = N;
    vector<int> p1, p2;
    p1.push_back(0);
    for (int i = 1;i < n;i++) {
        if (are_connected({ p1.back() }, { i })) p1.push_back(i);
        else {
            p2.push_back(i);
            break;
        }
    }
    if (p1.size() == n) return p1;
    for (int i = p2.back() + 1;i < n;i++) {
        if (are_connected({ p1.back() }, { p2.back(), i })) {
            p1.push_back(i);
        }
        else {
            p2.push_back(i);
        }
    }
    if (p1.size() > p2.size()) return p1;
    return p2;
}

컴파일 시 표준 에러 (stderr) 메시지

longesttrip.cpp: In function 'std::vector<int> longest_trip(int, int)':
longesttrip.cpp:17:19: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   17 |     if (p1.size() == n) return p1;
      |         ~~~~~~~~~~^~~~
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