제출 #234661

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
234661		LittleFlowers__	Bubble Sort 2 (JOI18_bubblesort2)	C++17	0 / 100	9012 ms	512 KiB

bubblesort2

#include <bits/stdc++.h>
using namespace std;
#define in ({int x=0;int c=getchar(),n=0;for(;!isdigit(c);c=getchar()) n=(c=='-');for(;isdigit(c);c=getchar()) x=x*10+c-'0';n?-x:x;})
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int rnd(int l,int r){return l+rng()%(r-l+1);}
#define fasty ios_base::sync_with_stdio(0),cin.tie(0);
#define forinc(a,b,c) for(int a=b,_c=c;a<=_c;++a)
#define fordec(a,b,c) for(int a=b,_c=c;a>=_c;--a)
#define forv(a,b) for(auto&a:b)
#define fi first
#define se second
#define pb push_back
#define ii pair<int,int>
#define mt make_tuple
#define all(a) a.begin(),a.end()
#define reset(f, x) memset(f, x, sizeof(f))
#define bit(x,i) ((x>>(i-1))&1)
#define on(x,i) (x|(1ll<<(i-1)))
#define off(x,i) (x&~(1<<(i-1)))
#define gg exit(0);

const int N=500010;

#include "bubblesort2.h"

int lds(vector<int> &a){
    set<int> st;
    forv(i,a){
        if(st.empty() || -i>*st.rbegin()){
            st.insert(-i);
        } else{
            st.erase(st.lower_bound(-i));
            st.insert(-i);
        }
    }
    return st.size();
}

int brute(vector<int> &a){
    for(int ans=0;;){
        int has=0;
        forinc(i,1,a.size()-1){
            if(a[i]<a[i-1]){
                has=1;
                swap(a[i],a[i-1]);
            }
        }
        if(!has) return ans+1;
        ans++;
    }
}

vector<int> countScans(vector<int> a,vector<int> x,vector<int> v){
    vector<int> res;
    forinc(i,0,x.size()-1){
        a[x[i]]=v[i];
        res.push_back(brute(a)-1);
    }
    return res;
}

/**
main(){
    #define task "TASK"
    freopen(task".inp","r",stdin);
    //freopen(task".out","w",stdout);

    vector<int> a={1,2,3,4};
    vector<int> x={0,2};
    vector<int> y={3,1};

    forv(i,countScans(a,x,y))
        cout<<i<<" ";

    /**
    n=in;
    forinc(i,1,n) a[i]=in;

    for(int ans=0;;){
        int has=0;
        forinc(i,2,n){
            if(a[i]<a[i-1]){
                has=1;
                swap(a[i],a[i-1]);
            }
        }
        if(!has) return cout<<ans,0;
        ans++;
    }
}
*/

컴파일 시 표준 에러 (stderr) 메시지

bubblesort2.cpp:75:5: warning: "/*" within comment [-Wcomment]
     /**

• Subtask 1: 0 / 17
• Subtask 2: 0 / 21
• Subtask 3: 0 / 22
• Subtask 4: 0 / 40