제출 #1277088

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1277088		nanaseyuzuki	Xylophone (JOI18_xylophone)	C++20	컴파일 에러	0 ms	0 KiB

xylophone

#include <bits/stdc++.h>
// Author: Kazuki_Will_Win_VOI_8703
#define fi first
#define se second
#define pii pair<int, int>
#define int long long
#define all(a) a.begin(), a.end()
using namespace std;

const int mn = 1e6 + 1, bm = (1 << 15) + 1, mod = 1532023;
const int inf = 1e9, base = 311;

vector <int> merge(int ll, int rr){
    if(ll == rr){
        vector <int> ans;
        ans.push_back(ll);
        return ans;
    }
    vector <int> ans;
    int mid = (ll + rr) >> 1;
    vector <int> l = merge(ll, mid);
    vector <int> r = merge(mid + 1, rr);
    int i = 0, j = 0;
    while(i < l.size() && j < r.size()){
        int kq = query(l[i], r[j]);
        if(kq < 0){
            ans.push_back(l[i]);
            i ++;
        }
        else{
            ans.push_back(r[j]);
            j ++;
        }
    }
    while(i < l.size()) ans.push_back(l[i++]);
    while(j < r.size()) ans.push_back(r[j++]);
    return ans;
}

int solve(int n){
    cin >> n;
    vector <int> kq = merge(1, n);
    vector <pii> Megumi;
    for(int i = 0; i < n; i++){
        Megumi.push_back({kq[i], i + 1});
    }
    sort(all(Megumi));
    for(auto [j, i] : Megumi) answer(j, i + 1);
}

컴파일 시 표준 에러 (stderr) 메시지

xylophone.cpp: In function 'std::vector<long long int> merge(long long int, long long int)':
xylophone.cpp:25:18: error: 'query' was not declared in this scope
   25 |         int kq = query(l[i], r[j]);
      |                  ^~~~~
xylophone.cpp: In function 'long long int solve(long long int)':
xylophone.cpp:48:31: error: 'answer' was not declared in this scope
   48 |     for(auto [j, i] : Megumi) answer(j, i + 1);
      |                               ^~~~~~
xylophone.cpp:49:1: warning: no return statement in function returning non-void [-Wreturn-type]
   49 | }
      | ^