제출 #465732

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
465732		idas	Xor Sort (eJOI20_xorsort)	C++11	25 / 100	11 ms	1228 KiB

xorsort

#include<bits/stdc++.h>
#define FOR(i, begin, end) for(int i=(begin); i<(end); i++)
#define FAST_IO ios_base::sync_with_stdio(false); cin.tie(nullptr)
#define PB push_back
#define F first
#define S second

const int INF=1e9;
const long long LINF=1e18;

using namespace std;
typedef long long ll;
typedef vector<int> vi;
typedef pair<int, int> pii;
typedef map<int, int> mii;

const int N=210;
int n, a[N], s;
vector<pii> ans;

int main()
{
    FAST_IO;
    cin >> n >> s;
    FOR(i, 0, n) cin >> a[i];

    bool going=true;
    while(going){
        going=false;
        FOR(i, 1, n)
        {
            if(a[i-1]>a[i]){
                swap(a[i-1], a[i]);
                ans.PB({i, i+1});
                ans.PB({i+1, i});
                ans.PB({i, i+1});
                going=true;
            }
        }
    }

    cout << ans.size() << '\n';
    for(auto[x, y] : ans){
        cout << x << " " << y << '\n';
    }
}

컴파일 시 표준 에러 (stderr) 메시지

xorsort.cpp: In function 'int main()':
xorsort.cpp:43:13: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   43 |     for(auto[x, y] : ans){
      |             ^

• Subtask 1: 25 / 25
• Subtask 2: 0 / 35
• Subtask 3: 0 / 40