Submission #1300280

#	Time	Username	Problem	Language	Result	Execution time	Memory
1300280		hihihihaw	Newspapers (CEOI21_newspapers)	C++20	8 / 100	1 ms	696 KiB

newspapers

#pragma GCC optimize("O3,unroll-loops,fast-math")    
#include <bits/stdc++.h>
using namespace std;
 
#define int long long
#define ll long long
#define pb push_back
#define pii pair<int,int>
#define sz(v) (int)v.size()
#define fi first
#define se second
#define INF 1223372036854775807
#define INF2 122337203
#define MOD 998244353 s
#define cint(x) int x;cin>>x;
#define cinarr(a,n) int a[n];for (int i=0;i<n;i++) cin>>a[i];
#define coutarr(a) for (auto d:a)cout<<d<<" "; cout<<endl;
#define coutarrD(a) for (auto d:a) cout<<d.fi<<","<<d.se<<" "; cout<<endl;
#define BERKAY_TUP ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL)
#define endl '\n'
#define ld long double
#define mid (start+end)/2
#define vvi vector<vector<int>>
int t=1;
int interactive=0;
int usaco=0;
int testCase=0;

void solve(){
    int n,m;
    cin>>n>>m;
    if (n==1){
        cout<<"YES"<<endl;
        cout<<1<<endl;
        cout<<1<<endl;
        return;
    }
    if (n==2){
        cout<<"YES"<<endl;
        cout<<2<<endl;
        cout<<"2 2"<<endl;
        return;
    }
    cout<<"YES"<<endl;
    cout<<2*n-4<<endl;
    for (int i=2;i<=n-1;i++) cout<<i<<" ";
    for (int i=n-1;i>=2;i--) cout<<i<<" ";
    cout<<endl;
    
}

 
 
 
 
 
 

 
int32_t main(){
    BERKAY_TUP;
    if (usaco){
        freopen("team.in", "r", stdin);
        freopen("team.out", "w", stdout);
    }
    if (!interactive){
    #ifdef Local
        freopen("in.txt", "r", stdin);
        freopen("out2.txt", "w", stdout);
        //freopen("wormsort.out", "w", stdout);
    #endif
    }
    if (t==1) solve();
    else{
        cin>>t;
        while (t--){testCase++;solve();}
    }
    
        
    return 0;
}

Compilation message (stderr)

newspapers.cpp: In function 'int32_t main()':
newspapers.cpp:63:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   63 |         freopen("team.in", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
newspapers.cpp:64:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   64 |         freopen("team.out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 12
• Subtask 2: 8 / 8
• Subtask 3: 0 / 80