oj.uz

Submission #681717

# Submission time Handle Problem Language Result Execution time Memory
681717 2023-01-13T22:06:11 Z stevancv Cake (CEOI14_cake) C++14
0 / 100
 304 ms 11056 KB 
#include <bits/stdc++.h>
#define ll long long
#define ld long double
#define sp ' '
#define en '\n'
#define smin(a, b) a = min(a, b)
#define smax(a, b) a = max(a, b)
using namespace std;
const int N = 2e5 + 5e4 + 2;
const int M = 5e5 + 2;
const ll linf = 9e18;
int a[N], inv[N + M];
struct Segtree {
    int st[4 * N];
    void Set(int node, int l, int r, int x, int y) {
        smax(st[node], y);
        if (l == r) return;
        int mid = l + r >> 1;
        if (x <= mid) Set(2 * node, l, mid, x, y);
        else Set(2 * node + 1, mid + 1, r, x, y);
    }
    int Get(int node, int l, int r, int ql, int qr) {
        if (r < ql || qr < l) return 0;
        if (ql <= l && r <= qr) return st[node];
        int mid = l + r >> 1;
        return max(Get(2 * node, l, mid, ql, qr), Get(2 * node + 1, mid + 1, r, ql, qr));
    }
    int Find(int node, int l, int r, int val) {
        if (l == r) return l;
        int mid = l + r >> 1;
        if (st[2 * node] > val) return Find(2 * node, l, mid, val);
        return Find(2 * node + 1, mid + 1, r, val);
    }
}stx, sty;
int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int n, pos;
    cin >> n >> pos;
    for (int i = 1; i <= n; i++) {
        cin >> a[i];
        inv[a[i]] = i;
    }
    int kk = min(n, 10);
    vector<int> x, y;
    for (int i = 1; i < pos; i++) x.push_back(i);
    reverse(x.begin(), x.end());
    for (int i = pos + 1; i <= n; i++) y.push_back(i);
    int X = x.size(); int Y = y.size();
    for (int i = 0; i < X; i++) stx.Set(1, 0, X - 1, i, a[x[i]]);
    for (int i = 0; i < Y; i++) sty.Set(1, 0, Y - 1, i, a[y[i]]);
    int val = n;
    int q; cin >> q;
    while (q--) {
        char ch; cin >> ch;
        if (ch == 'E') {
            int p, e;
            cin >> p >> e;
            val += 1;
            for (int i = 1; i < e; i++) {
                int pp = inv[val - i];
                a[pp] = val - i + 1;
                inv[val - i + 1] = pp;
                if (pp < pos) stx.Set(1, 0, X - 1, pos - pp - 1, a[pp]);
                else if (pp > pos) sty.Set(1, 0, Y - 1, pp - pos - 1, a[pp]);
            }
            int wh = a[p];
            a[p] = val - e + 1;
            inv[val - e + 1] = p;
            if (p < pos) stx.Set(1, 0, X - 1, pos - p - 1, a[p]);
            else if (p > pos) sty.Set(1, 0, Y - 1, p - pos - 1, a[p]);
            if (wh < val - kk) continue;
            for (int i = val - wh; i <= kk; i++) {
                int pp = inv[val - i];
                a[pp] = val - i + 1;
                inv[val - i + 1] = pp;
                if (pp < pos) stx.Set(1, 0, X - 1, pos - pp - 1, a[pp]);
                else if (pp > pos) sty.Set(1, 0, Y - 1, pp - pos - 1, a[pp]);
            }
            continue;
        }
        int p; cin >> p;
        if (p == pos) {
            cout << 0 << en;
            continue;
        }
        if (p < pos) {
            int o = stx.Get(1, 0, X - 1, 0, pos - p - 1);
            int oo = sty.Find(1, 0, Y - 1, o);
            if (sty.st[1] < o) oo = Y;
            cout << pos - p + oo << en;
        }
        else {
            int o = sty.Get(1, 0, Y - 1, 0, p - pos - 1);
            int oo = stx.Find(1, 0, X - 1, o);
            if (sty.st[1] < o) oo = X;
            cout << p - pos + oo << en;
        }
    }
    return 0;
}

Compilation message

cake.cpp: In member function 'void Segtree::Set(int, int, int, int, int)':
cake.cpp:18:21: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   18 |         int mid = l + r >> 1;
      |                   ~~^~~
cake.cpp: In member function 'int Segtree::Get(int, int, int, int, int)':
cake.cpp:25:21: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   25 |         int mid = l + r >> 1;
      |                   ~~^~~
cake.cpp: In member function 'int Segtree::Find(int, int, int, int)':
cake.cpp:30:21: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   30 |         int mid = l + r >> 1;
      |                   ~~^~~

Subtask #1
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 340 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0.0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 183 ms 5840 KB Output isn't correct
2 Incorrect 118 ms 5868 KB Output isn't correct
3 Correct 145 ms 5880 KB Output is correct
4 Incorrect 172 ms 5920 KB Output isn't correct
5 Incorrect 190 ms 6112 KB Output isn't correct
6 Incorrect 170 ms 6156 KB Output isn't correct
7 Correct 160 ms 6220 KB Output is correct
8 Incorrect 177 ms 6132 KB Output isn't correct

Subtask #3
0.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 47 ms 3276 KB Output is correct
2 Incorrect 42 ms 3648 KB Output isn't correct
3 Incorrect 39 ms 3628 KB Output isn't correct
4 Incorrect 0 ms 340 KB Output isn't correct
5 Incorrect 73 ms 6124 KB Output isn't correct
6 Incorrect 83 ms 6592 KB Output isn't correct
7 Incorrect 62 ms 6608 KB Output isn't correct

Subtask #4
0.0 / 50.0

# Verdict Execution time Memory Grader output
1 Incorrect 19 ms 852 KB Output isn't correct
2 Correct 16 ms 908 KB Output is correct
3 Correct 31 ms 1916 KB Output is correct
4 Incorrect 38 ms 2376 KB Output isn't correct
5 Incorrect 52 ms 1968 KB Output isn't correct
6 Correct 60 ms 3680 KB Output is correct
7 Correct 60 ms 2844 KB Output is correct
8 Incorrect 81 ms 5144 KB Output isn't correct
9 Incorrect 278 ms 10432 KB Output isn't correct
10 Incorrect 175 ms 5884 KB Output isn't correct
11 Incorrect 199 ms 6440 KB Output isn't correct
12 Incorrect 304 ms 10036 KB Output isn't correct
13 Incorrect 231 ms 11056 KB Output isn't correct