QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#549567#7523. Partially Free MealccsurzwTL 1ms9860kbC++202.9kb2024-09-06 17:41:082024-09-06 17:41:08

Judging History

你现在查看的是最新测评结果

  • [2024-09-06 17:41:08]
  • 评测
  • 测评结果:TL
  • 用时:1ms
  • 内存:9860kb
  • [2024-09-06 17:41:08]
  • 提交

answer

#include <array>
#include <iostream>
#include <algorithm>
#include <assert.h>
using namespace std;
typedef long long ll;
const int N = 2e5 + 3;
const int M = 1e7;
const ll INF = 5e18;
array<int, 2> a[N];
namespace persistentWeightSegmentTree
{
    int tot, q, rt[N], C[N];
    struct node
    {
        int l, r, num;
        ll sum;
    } st[M];
    void modify(int& id, int pre, int l, int r, int pos, int val)
    {
        id = ++tot;
        st[id] = st[pre];
        ++st[id].num;
        st[id].sum += val;
        if (l == r)
            return;
        int mid = (l + r) / 2;
        if (pos <= mid)
            modify(st[id].l, st[id].l, l, mid, pos, val);
        else
            modify(st[id].r, st[id].r, mid + 1, r, pos, val);
    }
    void init(int n)
    {
        tot = 0;
        for (int i = 1; i <= n; ++i)
            C[i] = a[i][1];
        sort(C + 1, C + n + 1);
        q = unique(C + 1, C + n + 1) - C - 1;
        for (int i = 1; i <= n; ++i)
            modify(rt[i], rt[i - 1], 1, q, lower_bound(C + 1, C + q + 1, a[i][1]) - C, a[i][1]);
        assert(tot < M);
    }
    ll query(int u, int v, int l, int r, int k)
    {
        if (st[v].num - st[u].num <= k)
            return st[v].sum - st[u].sum;
        else if (l == r)
            return (st[v].sum - st[u].sum) / (ll)(st[v].num - st[u].num) * (ll)k;
        int mid = (l + r) / 2, x = st[st[v].l].num - st[st[u].l].num;
        ll res = query(st[u].l, st[v].l, l, mid, k);
        if (x < k)
            res += query(st[u].r, st[v].r, mid + 1, r, k - x);
        return res;
    }
    ll ask(int l, int r, int k)
    {
        return query(rt[l - 1], rt[r], 1, q, k);
    }
};
ll ans[N];
struct T {
    ll v, i;
    bool operator<(const T b) {
        return v < b.v;
    }
}b[N];
bool cmp(array<int,2> &a, array<int,2> &b) {
    if (a[0] == b[0])return a[1] > b[1];
    return a[0] < b[0];
}
void solve()
{
    int n, hash[N];
    cin >> n;
    for (int i = 1; i <= n; ++i)
    {
        cin >> a[i][1] >> a[i][0];
        hash[i] = 10;
        ans[i] = 1e18;
    }
    sort(a + 1, a + n + 1,cmp);
    for (int i = 1; i <= n; ++i)
    {
       // cout << a[i][1] << ' ' << a[i][0] << endl;
        b[i].v = a[i][1] + a[i][0];
        b[i].i = i;
    }
    sort(b + 1, b + 1 + n);
    persistentWeightSegmentTree::init(n);
    int l = 1, r = 1;
    for (int i = 1; i <= n; i++) {
        
        r = b[i].i;
        for (int k = 1; k <= r; ++k)
        {
            ll val = persistentWeightSegmentTree::ask(1, k - 1, r - 1) + b[i].v;
            ans[k] = min(ans[k], val);
            hash[k]--;
        }
        while (hash[l] <= 0)l++;
    }

    for (int i = 1; i <= n; ++i)
        cout << ans[i] << "\n";

}
int main()
{
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);
    solve();
    return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 1ms
memory: 9860kb

input:

3
2 5
4 3
3 7

output:

7
11
16

result:

ok 3 lines

Test #2:

score: -100
Time Limit Exceeded

input:

200000
466436993 804989151
660995237 756645598
432103296 703610564
6889895 53276988
873617076 822481192
532911431 126844295
623111499 456772252
937464699 762157133
708503076 786039753
78556972 5436013
582960979 398984169
786333369 325119902
930705057 615928139
924915828 506145001
164984329 208212435...

output:


result: