Submission #1258842

#	Time	Username	Problem	Language	Result	Execution time	Memory
1258842		hamanp87	JOIRIS (JOI16_joiris)	C++20	100 / 100	1 ms	328 KiB

joiris

#include<bits/stdc++.h>
using namespace std;
using ll=long long;

//#pragma GCC optimize("03,unroll-loops")
//#pragma GCC target("avx2")
//#pragma GCC target("sse4")

#define all(v) v.begin(),v.end()
#define F first
#define S second
#define pub push_back
#define pob pop_back
#define puf push_front
#define pof pop_front
//#define randi uniform_int_distribution<long long>
#define damoon(v) v.resize(unique(all(v))-v.begin())
//mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
//randi dist(0,10000000000000000);

typedef pair<int,int> pii;
typedef pair<long long,long long> pll;
typedef pair<int,bool> pib;
typedef pair<long long,bool> plb;
typedef pair<int,pii> pip;
typedef pair<pii,int> ppi;
typedef vector<int> veci;
typedef vector<long long> vecl;
typedef vector<bool> vecb;
typedef vector<pii> vecp;
typedef set<int> seti;
typedef set<long long> setl;
typedef set<pii> setp;
typedef map<int,int> mapii;
typedef map<long long,long long> mapll;
typedef map<int,bool> mapib;
typedef map<long long,bool> maplb;

const int inf=1e9,mod=1e9+7,neginf=-1e9;
const double PI=acos(-1);
int n,k;
veci a;
vecp ans;

void AV(int i)
{
    a[i]+=k;
    ans.emplace_back(1,i);
}

void AH(int i)
{
    for(int j=i;j<=i+k-1;j++)
        a[j]+=1;
    ans.emplace_back(2,i);
}

void update(int i)
{
    int mx=*max_element(a.begin()+i,a.begin()+i+k)+k;
    for(int j=1;j<i;j++)
        while(a[j]<mx)
            AV(j);
    for(int j=i+k;j<=n;j++)
        while(a[j]<mx)
            AV(j);

    AH(i);
}

void solve()
{
    cin>>n>>k;
    a.assign(n+2,0);
    for(int i=1;i<=n;i++)
        cin>>a[i];

    for(int i=1;i<=n-k+1;i++)
        while(abs(a[i]-a[1])%k!=0)
            update(i);
    for(int i=n-k+1;i>0;i--)
        while(abs(a[i+k-1]-a[n])%k!=0)
            update(i);

    int mx=*max_element(a.begin()+1,a.begin()+n+1);
    for(int i=1;i<=n;i++)
        while(a[i]<mx)
            AV(i);

    for(int i=1;i<=n;i++)
    {
        if(a[i]!=mx)
        {
            cout<<"-1\n";
            return;
        }
    }

    cout<<ans.size()<<"\n";
    for(auto p:ans)
        cout<<p.F<<' '<<p.S<<"\n";
}

int main()
{
    cin.tie(0);
    cout.tie(0);
    ios_base::sync_with_stdio(false);

    //ifstream fin("in.txt");
    //ofstream fout("out.txt");

    int t=1;
    //cin>>t;
    while(t--)
    {
        solve();
    }
}

• Subtask 1: 15 / 15
• Subtask 2: 15 / 15
• Subtask 3: 15 / 15
• Subtask 4: 55 / 55