oj.uz

Submission #892393

# Submission time Handle Problem Language Result Execution time Memory
892393 2023-12-25T09:58:41 Z quochuy147 Financial Report (JOI21_financial) C++14
17 / 100
 77 ms 33628 KB 
#include <bits/stdc++.h>

using namespace std;

#define fi first
#define se second
#define ll long long
#define mp make_pair
#define pb push_back
#define pii pair<int, int>
#define pll pair<ll, ll>
#define MASK(i) (1LL << (i))
#define BIT(x, i) (((x) >> (i)) & 1)
#define all(x) (x).begin() , (x).end()
#define TIME  (1.0 * clock() / CLOCKS_PER_SEC)
#define file "name"
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;}

const int inf = 1e9 + 5;
const ll linf = 1e17;
const int mod = 1e9 + 7;
const int N = 3e5 + 5;
const int LOG = 20;

int n, d, res;
int a[N], f[N];
int rmq[N][LOG + 5], lg[N];

void inp()
{
    cin >> n >> d;
    for(int i = 1; i <= n; ++i) cin >> a[i];
}

namespace sub4 {
    void prepare() {
        for(int i = 2; i <= n; ++i) lg[i] = lg[i / 2] + 1;

        for(int i = 1; i <= n; ++i) rmq[i][0] = a[i];
        for(int j = 1; j <= LOG; ++j)
            for(int i = 1; i + MASK(j) - 1 <= n; ++i) rmq[i][j] = max(rmq[i][j - 1], rmq[i + MASK(j - 1)][j - 1]);
    }

    int get(int l, int r) {
        int k = lg[r - l + 1];
        return max(rmq[l][k], rmq[r - MASK(k) + 1][k]);
    }

    void solve() {
        prepare();
        for(int i = n; i >= 1; --i) {
            int l = i + 1, r = n, id = n + 1;
            while(l <= r) {
                int m = (l + r) >> 1;
                if(get(i, m) > a[i]) {
                    id = m;
                    r = m - 1;
                }
                else l = m + 1;
            }
            f[i] = f[id] + 1;
            maximize(res, f[i]);
        }
        cout << res;
    }
}

namespace sub5 {
    int x[N];
    void solve() {
        for(int i = 1; i <= n; ++i) x[i] = inf;
        x[0] = 0;
        for(int i = 1; i <= n; ++i) {
            int l = 1, r = n, id = 0;
            while(l <= r) {
                int m = (l + r) >> 1;
                if(x[m] >= a[i]) {
                    id = m;
                    r = m - 1;
                }
                else l = m + 1;
            }
            x[id] = a[i];
            maximize(res, id);
        }
        cout << res;
    }
}

namespace sub3 {
    void prepare() {
        for(int i = 2; i <= n; ++i) lg[i] = lg[i / 2] + 1;

        for(int i = 1; i <= n; ++i) rmq[i][0] = a[i];
        for(int j = 1; j <= LOG; ++j)
            for(int i = 1; i + MASK(j) - 1 <= n; ++i) rmq[i][j] = min(rmq[i][j - 1], rmq[i + MASK(j - 1)][j - 1]);
    }

    int get(int l, int r) {
        int k = lg[r - l + 1];
        return min(rmq[l][k], rmq[r - MASK(k) + 1][k]);
    }

    void solve() {
        prepare();
        a[0] = -1;
        for(int i = 1; i <= n; ++i) {
            f[i] = 1;
            if(a[i] > a[i - 1]) f[i] = f[i - 1] + 1;
            for(int j = 1; j < i - 1; ++j) {
                if(a[j] >= a[i]) continue;
                int l = max(j + 1, i - d), r = min(i - 1, j + d);
                if(l <= r && get(l, r) <= a[j]) maximize(f[i], f[j] + 1);
            }
            maximize(res, f[i]);
        }
        cout << res;
    }
}

void solve()
{
    if(d == 1) return void(sub4::solve());
    if(d == n) return void(sub5::solve());
    if(n <= 7000) return void(sub3::solve());
}

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
//	freopen(file".inp" , "r" , stdin);
//	freopen(file".out" , "w" , stdout);
    inp();
    solve();
    return 0;
}

Subtask #1
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 0 ms 2396 KB Output is correct
10 Correct 1 ms 4440 KB Output is correct
11 Correct 1 ms 4556 KB Output is correct
12 Correct 1 ms 4444 KB Output is correct
13 Incorrect 1 ms 4444 KB Output isn't correct
14 Halted 0 ms 0 KB -

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 0 ms 2396 KB Output is correct
10 Correct 1 ms 4440 KB Output is correct
11 Correct 1 ms 4556 KB Output is correct
12 Correct 1 ms 4444 KB Output is correct
13 Incorrect 1 ms 4444 KB Output isn't correct
14 Halted 0 ms 0 KB -

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 0 ms 2396 KB Output is correct
10 Correct 1 ms 4440 KB Output is correct
11 Correct 1 ms 4556 KB Output is correct
12 Correct 1 ms 4444 KB Output is correct
13 Incorrect 1 ms 4444 KB Output isn't correct
14 Halted 0 ms 0 KB -

Subtask #4
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 69 ms 33328 KB Output is correct
2 Correct 77 ms 33316 KB Output is correct
3 Correct 71 ms 33316 KB Output is correct
4 Correct 68 ms 33116 KB Output is correct
5 Correct 67 ms 33104 KB Output is correct
6 Correct 70 ms 33312 KB Output is correct
7 Correct 68 ms 33628 KB Output is correct
8 Correct 65 ms 33112 KB Output is correct
9 Correct 67 ms 33316 KB Output is correct
10 Correct 67 ms 33104 KB Output is correct
11 Correct 69 ms 33132 KB Output is correct
12 Correct 68 ms 33316 KB Output is correct
13 Correct 67 ms 33116 KB Output is correct
14 Correct 68 ms 33116 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 5508 KB Output is correct
2 Correct 39 ms 5724 KB Output is correct
3 Correct 41 ms 5724 KB Output is correct
4 Correct 41 ms 5680 KB Output is correct
5 Correct 44 ms 5720 KB Output is correct
6 Correct 41 ms 5712 KB Output is correct
7 Correct 37 ms 5712 KB Output is correct
8 Correct 26 ms 5732 KB Output is correct
9 Correct 35 ms 5700 KB Output is correct
10 Correct 37 ms 5720 KB Output is correct
11 Correct 44 ms 5640 KB Output is correct
12 Correct 28 ms 5720 KB Output is correct

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 0 ms 2396 KB Output is correct
10 Correct 1 ms 4440 KB Output is correct
11 Correct 1 ms 4556 KB Output is correct
12 Correct 1 ms 4444 KB Output is correct
13 Incorrect 1 ms 4444 KB Output isn't correct
14 Halted 0 ms 0 KB -