QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#798722#9792. Ogre SortpoetryfactoryWA 0ms3680kbC++234.1kb2024-12-04 16:30:532024-12-04 16:30:53

Judging History

This is the latest submission verdict.

  • [2024-12-04 16:30:53]
  • Judged
  • Verdict: WA
  • Time: 0ms
  • Memory: 3680kb
  • [2024-12-04 16:30:53]
  • Submitted

answer

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define int ll
#define endl '\n'
typedef vector<int> vi;
typedef vector<vi> vvi;
#define lowbit(x) x&-x
template <typename T>

struct SegTree
{
    const int START = 1;
    int n;
    struct node
    {
        int l, r;
        T val, lazy;
        int length() const { return (this->r - this->l + 1); }
    };
    std::vector<node> tree;
 
    SegTree() = default;
    SegTree(const std::vector<T>& ini) : n(ini.size() - 1), tree((n + 1) << 2)
    {
        build(1, START, n, ini);
    }
    SegTree(int mx) : n(mx), tree((mx + 1) << 2)
    {
        build(1, START, n);
    }
 
    void _pushup(int u)
    {
        tree[u].val = tree[u << 1].val + tree[u << 1 | 1].val;
    }
 
    void _pushdown(int u)
    {
        const int la = tree[u].lazy;
        if (la)
        {
            tree[u << 1].lazy += la;
            tree[u << 1 | 1].lazy += la;
            tree[u << 1].val += tree[u << 1].length() * la;
            tree[u << 1 | 1].val += tree[u << 1 | 1].length() * la;
            tree[u].lazy = 0;
        }
    }
 
    void build(int u, int l, int r)
    {
        tree[u].l = l;
        tree[u].r = r;
        tree[u].lazy = 0;
        if (l == r)
        {
            tree[u].val = 0;
            return;
        }
        const int mid = (l + r) >> 1;
        build(u << 1, l, mid);
        build(u << 1 | 1, mid + 1, r);
        _pushup(u);
    }
 
    void build(int u, int l, int r, const std::vector<T>& ini)
    {
        tree[u].l = l;
        tree[u].r = r;
        tree[u].lazy = 0;
        if (l == r)
        {
            tree[u].val = ini[l];
            return;
        }
        const int mid = (l + r) >> 1;
        build(u << 1, l, mid, ini);
        build(u << 1 | 1, mid + 1, r, ini);
        _pushup(u);
    }
 
    void _modify(int u, int l, int r, const int s, const int t, T x)
    {
        if (l >= s && r <= t)
        {
            tree[u].val += x * tree[u].length();
            tree[u].lazy += x;
            return;
        }
        const int mid = (l + r) >> 1;
        _pushdown(u);
        if (mid >= s) _modify(u << 1, l, mid, s, t, x);
        if (mid < t) _modify(u << 1 | 1, mid + 1, r, s, t, x);
        _pushup(u);
    }
 
    T _query(int u, int l, int r, const int s, const int t)
    {
        if (l >= s && r <= t)
        {
            return tree[u].val;
        }
        const int mid = (l + r) >> 1;
        _pushdown(u);
        T ans = 0;
        if (mid >= s) ans += _query(u << 1, l, mid, s, t);
        if (mid < t) ans += _query(u << 1 | 1, mid + 1, r, s, t);
        _pushup(u);
        return ans;
    }
 
    void modify(int s, int t, T x) { _modify(1, START, n, s, t, x); }
    T query(int s, int t) { return _query(1, START, n, s, t); }
};

void solve()
{
    int n;
    cin>>n;
    vector<int> a(n+1);
    vi pos(n+1);
    SegTree<int> seg(n+1);
    vi premax(n+1);
    for(int i = 1;i<=n;++i)
    {
        cin>>a[i];
        pos[a[i]] = i;
        premax[i] = max(premax[i-1],a[i]);
    }
    int res = 0;
    vector<pair<int,int>> op(1);
    priority_queue<int> pq;
    for(int i = 1;i<=n;++i)
    {
        if(premax[i]!=a[i])   pq.push(a[i]);
    }
    while(!pq.empty())
    {
        auto p = pq.top();
        pq.pop();
        int coverp = seg.query(pos[p],pos[p]);
        int coverp1=seg.query(pos[p+1],pos[p+1]);
        op.emplace_back(pos[p]+coverp,pos[p+1]+coverp1);
        seg.modify(pos[p+1]+1,pos[p],1);
        res+=pos[p+1]+coverp1;
        pos[p] = pos[p+1];
    }
    cout<<res<<" "<<op.size()-1<<endl;
    for(int i = 1;i<=op.size()-1;++i)
    {
        cout<<op[i].first<<" "<<op[i].second<<endl;
    }
}

int32_t main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    int tc = 1;
    while(tc--)
    {
        solve();
    }
    return 0;
}
// 5
// 5 4 2 1 3
// 4 5 2 1 3
// 3 4 5 2 1
// 2 3 4 5 1
// 1 2 3 4 5

// 9
// 2 8 7 3 4 1 9 6 5
// 2 7 8 3 4 1 9 6 5
// 2 6 7 8 3 4 1 9 5
// 2 5 6 7 8 3 4 1 9
// 2 4 5 6 7 8 3 1 9
// 2 3 4 5 6 7 8 1 9
// 1 2 3 4 5 6 7 8 9

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 3620kb

input:

4
1 2 4 3

output:

3 1
4 3

result:

ok Participant's output is correct

Test #2:

score: 0
Accepted
time: 0ms
memory: 3680kb

input:

5
2 4 1 3 5

output:

3 2
4 2
4 1

result:

ok Participant's output is correct

Test #3:

score: 0
Accepted
time: 0ms
memory: 3588kb

input:

3
1 2 3

output:

0 0

result:

ok Participant's output is correct

Test #4:

score: 0
Accepted
time: 0ms
memory: 3584kb

input:

4
1 2 4 3

output:

3 1
4 3

result:

ok Participant's output is correct

Test #5:

score: 0
Accepted
time: 0ms
memory: 3588kb

input:

5
2 4 1 3 5

output:

3 2
4 2
4 1

result:

ok Participant's output is correct

Test #6:

score: 0
Accepted
time: 0ms
memory: 3652kb

input:

3
1 2 3

output:

0 0

result:

ok Participant's output is correct

Test #7:

score: 0
Accepted
time: 0ms
memory: 3648kb

input:

1
1

output:

0 0

result:

ok Participant's output is correct

Test #8:

score: 0
Accepted
time: 0ms
memory: 3656kb

input:

5
5 3 4 1 2

output:

4 4
3 1
3 1
5 1
5 1

result:

ok Participant's output is correct

Test #9:

score: 0
Accepted
time: 0ms
memory: 3588kb

input:

5
4 1 2 3 5

output:

3 3
4 1
4 1
4 1

result:

ok Participant's output is correct

Test #10:

score: 0
Accepted
time: 0ms
memory: 3656kb

input:

5
1 3 4 2 5

output:

2 1
4 2

result:

ok Participant's output is correct

Test #11:

score: -100
Wrong Answer
time: 0ms
memory: 3584kb

input:

5
1 4 5 2 3

output:

4 2
5 2
5 2

result:

wrong answer Integer parameter [name=participant answer] equals to 4, violates the range [0, 3]