oj.uz

Submission #1109833

# Submission time Handle Problem Language Result Execution time Memory
1109833 2024-11-07T17:42:39 Z cpptowin Measures (CEOI22_measures) C++17
76 / 100
 516 ms 42964 KB 
#include <bits/stdc++.h>
#define fo(i, d, c) for (int i = d; i <= c; i++)
#define fod(i, c, d) for (int i = c; i >= d; i--)
#define maxn 1000010
#define N 1010
#define fi first
#define se second
#define pb emplace_back
#define en cout << "\n";
#define int long long
#define inf (int)1e18
#define bitcount(x) __builtin_popcountll(x)
#define pii pair<int, int>
#define vii vector<pii>
#define lb(x) x & -x
#define bit(i, j) ((i >> j) & 1)
#define offbit(i, j) (i ^ (1LL << j))
#define onbit(i, j) (i | (1LL << j))
#define vi vector<int>
#define all(x) x.begin(), x.end()
#define ss(x) (int)x.size()
#define UNIQUE(v) v.erase(unique(all(v)), v.end())
template <typename T1, typename T2>
bool minimize(T1 &a, T2 b)
{
    if (a > b)
    {
        a = b;
        return true;
    }
    return false;
}
template <typename T1, typename T2>
bool maximize(T1 &a, T2 b)
{
    if (a < b)
    {
        a = b;
        return true;
    }
    return false;
}
using namespace std;
const int nsqrt = 450;
const int mod = 1e9 + 7;
void add(int &x, int k)
{
    x += k;
    x %= mod;
    if (x < 0)
        x += mod;
}
void del(int &x, int k)
{
    x -= k;
    x %= mod;
    if (x < 0)
        x += mod;
}
struct SegmentTree
{
    vector<int> st, lazy;
    int n;
    /// real n
    SegmentTree(int _n = 0) : n(_n)
    {
        st.resize(4 * n + 10, inf);
        lazy.resize(4 * n + 10);
    }
    void resize(int _n)
    {
        n = _n;
        st.resize(4 * n + 10, inf);
        lazy.resize(4 * n + 10);
    }
    void down(int id, int l, int r)
    {
        st[id << 1] += lazy[id];
        lazy[id << 1] += lazy[id];
        st[id << 1 | 1] += lazy[id];
        lazy[id << 1 | 1] += lazy[id];
        lazy[id] = 0;
    }

    void update(int id, int l, int r, int u, int v, int val)
    {
        if (u > r || l > v)
            return;
        if (u <= l && r <= v)
        {
            st[id] += val;
            lazy[id] += val;
            return;
        }
        down(id, l, r);
        int mid = (l + r) >> 1;
        update(id << 1, l, mid, u, v, val);
        update(id << 1 | 1, mid + 1, r, u, v, val);
        st[id] = min(st[id << 1], st[id << 1 | 1]);
    }

    void assign(int id, int l, int r, int x, int val)
    {
        if (l > x or r < x)
            return;
        if (l == r)
        {
            st[id] = val;
            lazy[id] = 0;
            return;
        }
        down(id, l, r);
        int mid = l + r >> 1;
        assign(id << 1, l, mid, x, val);
        assign(id << 1 | 1, mid + 1, r, x, val);
        st[id] = min(st[id << 1], st[id << 1 | 1]);
    }
    int get(int id, int l, int r, int u, int v)
    {
        if (l > v || u > r)
            return inf;
        if (u <= l && r <= v)
            return st[id];
        down(id, l, r);
        int mid = (l + r) >> 1;
        return min(get(id << 1, l, mid, u, v), get(id << 1 | 1, mid + 1, r, u, v));
    }
    int get(int l, int r)
    {
        return get(1, 1, n, l, r);
    }
    void update(int l, int r, int val)
    {
        update(1, 1, n, l, r, val);
    }
    void assign(int x, int val)
    {
        assign(1, 1, n, x, val);
    }
};
struct SegmentTree1
{
    vector<int> st, lazy;
    int n;
    /// real n
    SegmentTree1(int _n = 0) : n(_n)
    {
        st.resize(4 * n + 10, -inf);
        lazy.resize(4 * n + 10);
    }
    void resize(int _n)
    {
        n = _n;
        st.resize(4 * n + 10);
        lazy.resize(4 * n + 10);
    }
    void down(int id, int l, int r)
    {
        st[id << 1] += lazy[id];
        lazy[id << 1] += lazy[id];
        st[id << 1 | 1] += lazy[id];
        lazy[id << 1 | 1] += lazy[id];
        lazy[id] = 0;
    }

    void update(int id, int l, int r, int u, int v, int val)
    {
        if (u > r || l > v)
            return;
        if (u <= l && r <= v)
        {
            st[id] += val;
            lazy[id] += val;
            return;
        }
        down(id, l, r);
        int mid = (l + r) >> 1;
        update(id << 1, l, mid, u, v, val);
        update(id << 1 | 1, mid + 1, r, u, v, val);
        st[id] = max(st[id << 1], st[id << 1 | 1]);
    }
    void assign(int id, int l, int r, int x, int val)
    {
        if (l > x or r < x)
            return;
        if (l == r)
        {
            st[id] = val;
            lazy[id] = 0;
            return;
        }
        down(id, l, r);
        int mid = l + r >> 1;
        assign(id << 1, l, mid, x, val);
        assign(id << 1 | 1, mid + 1, r, x, val);
        st[id] = max(st[id << 1], st[id << 1 | 1]);
    }
    int get(int id, int l, int r, int u, int v)
    {
        if (l > v || u > r)
            return -inf;
        if (u <= l && r <= v)
            return st[id];
        down(id, l, r);
        int mid = (l + r) >> 1;
        return max(get(id << 1, l, mid, u, v), get(id << 1 | 1, mid + 1, r, u, v));
    }
    int get(int l, int r)
    {
        return get(1, 1, n, l, r);
    }
    void update(int l, int r, int val)
    {
        update(1, 1, n, l, r, val);
    }
    void assign(int x, int val)
    {
        assign(1, 1, n, x, val);
    }
};
struct BIT
{
    int t[maxn];
    void up(int x, int val)
    {
        for (; x < maxn; x += lb(x))
            t[x] += val;
    }
    int get(int x)
    {
        int ans = 0;
        for (; x; x -= lb(x))
            ans += t[x];
        return ans;
    }
} t;
vi nen;
int n, q, d;
int qry[maxn], a[maxn];
main()
{
#define name "TASK"
    if (fopen(name ".inp", "r"))
    {
        freopen(name ".inp", "r", stdin);
        freopen(name ".out", "w", stdout);
    }
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cin >> n >> q >> d;
    fo(i, 1, n)
    {
        cin >> a[i];
        nen.pb(a[i]);
    }
    fo(i, 1, q)
    {
        cin >> qry[i];
        nen.pb(qry[i]);
    }
    sort(all(nen));
    UNIQUE(nen);
    SegmentTree minn(ss(nen));
    SegmentTree1 maxx(ss(nen));
    sort(a + 1, a + n + 1);
    map<int, int> cnt;
    int ans = 0;
    fo(i, 1, n)
    {
        int lb = lower_bound(all(nen), a[i]) - nen.begin() + 1;
        int val = a[i] - i * d;
        t.up(lb, 1);
        int val1 = minn.get(lb, lb);
        if (val1 > val)
            minn.assign(lb, val);
        val1 = maxx.get(lb, lb);
        if (val1 < val)
            maxx.assign(lb, val);
        maximize(ans, maxx.get(1, lb - 1) - val);
        maximize(ans, cnt[a[i]] * d);
        cnt[a[i]]++;
    }
    fo(i, 1, q)
    {
        int lb = lower_bound(all(nen), qry[i]) - nen.begin() + 1;
        minn.update(lb + 1, ss(nen), -d);
        maxx.update(lb + 1, ss(nen), -d);
        int mi = minn.get(lb + 1, ss(nen));
        t.up(lb, 1);
        int id = t.get(lb) + 1;
        int val = qry[i] - id * d;
        int val1 = minn.get(lb, lb);
        if (val1 > val)
            minn.assign(lb, val);
        val1 = maxx.get(lb, lb);
        if (val1 < val)
            maxx.assign(lb, val);
        int u = maxx.get(1,lb);
        int v = minn.get(lb,ss(nen));
        maximize(ans,u - v);
        if(ans & 1) cout << ans / 2 << '.' << 5 << ' ';
        else cout << ans / 2 << ' ';
        // cout << (double)0.5 * ans << ' ';
    }
}

Compilation message

Main.cpp: In member function 'void SegmentTree::assign(long long int, long long int, long long int, long long int, long long int)':
Main.cpp:113:21: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  113 |         int mid = l + r >> 1;
      |                   ~~^~~
Main.cpp: In member function 'void SegmentTree1::assign(long long int, long long int, long long int, long long int, long long int)':
Main.cpp:193:21: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  193 |         int mid = l + r >> 1;
      |                   ~~^~~
Main.cpp: At global scope:
Main.cpp:240:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
  240 | main()
      | ^~~~
Main.cpp: In function 'int main()':
Main.cpp:288:13: warning: unused variable 'mi' [-Wunused-variable]
  288 |         int mi = minn.get(lb + 1, ss(nen));
      |             ^~
Main.cpp:245:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  245 |         freopen(name ".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:246:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  246 |         freopen(name ".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 9040 KB Output is correct
2 Incorrect 3 ms 9040 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 9040 KB Output is correct
2 Incorrect 3 ms 9040 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 367 ms 38860 KB Output is correct
2 Correct 364 ms 40640 KB Output is correct
3 Correct 58 ms 17600 KB Output is correct
4 Correct 359 ms 40576 KB Output is correct
5 Correct 364 ms 41920 KB Output is correct
6 Correct 370 ms 40792 KB Output is correct
7 Correct 367 ms 41820 KB Output is correct
8 Correct 362 ms 40704 KB Output is correct
9 Correct 360 ms 40640 KB Output is correct
10 Correct 371 ms 42964 KB Output is correct
11 Correct 401 ms 41644 KB Output is correct
12 Correct 380 ms 42432 KB Output is correct
13 Correct 367 ms 40640 KB Output is correct
14 Correct 388 ms 42484 KB Output is correct
15 Correct 371 ms 42432 KB Output is correct
16 Correct 364 ms 40384 KB Output is correct
17 Correct 348 ms 41864 KB Output is correct

Subtask #4
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 367 ms 38860 KB Output is correct
2 Correct 364 ms 40640 KB Output is correct
3 Correct 58 ms 17600 KB Output is correct
4 Correct 359 ms 40576 KB Output is correct
5 Correct 364 ms 41920 KB Output is correct
6 Correct 370 ms 40792 KB Output is correct
7 Correct 367 ms 41820 KB Output is correct
8 Correct 362 ms 40704 KB Output is correct
9 Correct 360 ms 40640 KB Output is correct
10 Correct 371 ms 42964 KB Output is correct
11 Correct 401 ms 41644 KB Output is correct
12 Correct 380 ms 42432 KB Output is correct
13 Correct 367 ms 40640 KB Output is correct
14 Correct 388 ms 42484 KB Output is correct
15 Correct 371 ms 42432 KB Output is correct
16 Correct 364 ms 40384 KB Output is correct
17 Correct 348 ms 41864 KB Output is correct
18 Correct 472 ms 40944 KB Output is correct
19 Correct 496 ms 42588 KB Output is correct
20 Correct 53 ms 17600 KB Output is correct
21 Correct 409 ms 40640 KB Output is correct
22 Correct 449 ms 41180 KB Output is correct
23 Correct 393 ms 40916 KB Output is correct
24 Correct 496 ms 41448 KB Output is correct
25 Correct 355 ms 40556 KB Output is correct
26 Correct 480 ms 40636 KB Output is correct
27 Correct 489 ms 42944 KB Output is correct
28 Correct 422 ms 40896 KB Output is correct
29 Correct 442 ms 42440 KB Output is correct
30 Correct 393 ms 40532 KB Output is correct
31 Correct 410 ms 42432 KB Output is correct
32 Correct 397 ms 42384 KB Output is correct
33 Correct 516 ms 40128 KB Output is correct
34 Correct 418 ms 41920 KB Output is correct