Submission #846748

#TimeUsernameProblemLanguageResultExecution timeMemory
846748JordanTsAddk (eJOI21_addk)C++17
92 / 100
1004 ms10664 KiB
#include <bits/stdc++.h>
#pragma GCC optimize("unroll-loops")
using namespace std;

const int MAXN=1e6+1;
int N, Q, K;
int A[MAXN];
int j[MAXN];
long long prefix[MAXN];

void fastIO()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);
}

void read()
{
    cin >> N >> K;

    for(int i=1; i<=N; i++)
    {
        cin >> A[i];
        prefix[i]=prefix[i-1]+A[i];
    }
}

void change()
{
    for(int i=1; i<K; i++)
    {
        swap(A[j[i]], A[j[i-1]]);
    }
}

long long rsq(int& l, const int& r, int& m)
{
    long long sum=0;

    if(m>(r-l+1)/2)
    {
        m=(r-l+1)-m+1;
    }

    for(int i=0; i<m; i++)
    {
        sum+=(prefix[r-i]-prefix[l+i-1]);
    }

    return sum;
}

void solve()
{
    cin >> Q;

    while(Q--)
    {
        int t;
        cin >> t;

        if(t==2)
        {
            int l, r, m;
            cin >> l >> r >> m;
            cout << rsq(l, r, m) << '\n';
        }
        else
        {
            for(int i=0; i<K; i++)
            {
                cin >> j[i];
            }
            ///change();
        }
    }
}

int main()
{
    fastIO();
    read();
    solve();
    return 0;
}
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