Submission #1438807


Source Code Expand

#include "bits/stdc++.h"
using namespace std;
typedef long long ll;
typedef pair<int,int> pii;
#define rep(i,n) for(ll i=0;i<(ll)(n);i++)
#define rep2(i,a,b) for(ll i=(a);i<(b);i++)
#define all(a)  (a).begin(),(a).end()
#define pb emplace_back
#define INF (1e9+1)
//#define INF (1LL<<59)

int main(){
    int n,x;
    cin>>n>>x;
    if(x==1 || x==2*n-1){
        cout<<"No"<<endl;
        return 0;
    }
    cout<<"Yes"<<endl;
    
    vector<bool> used(2*n-1,false);
    if(x==2){
        for(int i=x-1;i<=x+2;i++)used[i] = true;
        int p = 0;
        rep(i,n-1){
            while(used[p])p++;
            cout<<p<<endl;
            used[p] = true;
        }
        cout<<x+1<<endl;
        cout<<x<<endl;
        cout<<x-1<<endl;
        cout<<x+2<<endl;
        rep(i,n-2){
            while(used[p])p++;
            cout<<p<<endl;
            used[p] = true;
        }
    }else{
        for(int i=x-2;i<=x+1;i++)used[i] = true;
        int p = 0;
        rep(i,n-1){
            while(used[p])p++;
            cout<<p<<endl;
            used[p] = true;
        }
        cout<<x-1<<endl;
        cout<<x<<endl;
        cout<<x+1<<endl;
        cout<<x-2<<endl;
        rep(i,n-2){
            while(used[p])p++;
            cout<<p<<endl;
            used[p] = true;
        }
    }
}

Submission Info

Submission Time
Task B - Median Pyramid Easy
User Yazaten
Language C++14 (GCC 5.4.1)
Score 0
Code Size 1353 Byte
Status WA
Exec Time 314 ms
Memory 1536 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 0 / 400
Status
AC × 1
WA × 1
AC × 9
WA × 13
Set Name Test Cases
Sample 0_00.txt, 0_01.txt
All 0_00.txt, 0_01.txt, 1_00.txt, 1_01.txt, 1_02.txt, 1_03.txt, 1_04.txt, 1_05.txt, 1_06.txt, 1_07.txt, 1_08.txt, 1_09.txt, 1_10.txt, 1_11.txt, 1_12.txt, 1_13.txt, 1_14.txt, 1_15.txt, 1_16.txt, 1_17.txt, 1_18.txt, 1_19.txt
Case Name Status Exec Time Memory
0_00.txt WA 1 ms 256 KB
0_01.txt AC 1 ms 256 KB
1_00.txt AC 1 ms 256 KB
1_01.txt WA 1 ms 256 KB
1_02.txt AC 1 ms 256 KB
1_03.txt AC 1 ms 256 KB
1_04.txt WA 1 ms 256 KB
1_05.txt WA 1 ms 256 KB
1_06.txt WA 1 ms 256 KB
1_07.txt AC 1 ms 256 KB
1_08.txt AC 1 ms 256 KB
1_09.txt WA 309 ms 1536 KB
1_10.txt WA 306 ms 1536 KB
1_11.txt WA 310 ms 1536 KB
1_12.txt WA 305 ms 1536 KB
1_13.txt WA 314 ms 1536 KB
1_14.txt AC 1 ms 256 KB
1_15.txt AC 1 ms 256 KB
1_16.txt WA 177 ms 896 KB
1_17.txt WA 298 ms 1536 KB
1_18.txt WA 127 ms 768 KB
1_19.txt AC 1 ms 256 KB