Submission #1160838

#	Time	Username	Problem	Language	Result	Execution time	Memory
1160838		JahonaliX	Wall (IOI14_wall)	C++17	0 / 100	75 ms	8076 KiB

wall

#include <bits/stdc++.h>

using namespace std;

struct segment_tree {
    int n;
    vector<int> mn, mx;
    segment_tree(int m) {
        n = m;
        mn.assign(n << 2, 0);
        mx.assign(n << 2, 1e9);
    }
    void push(int v, int l, int r) {
        if (l == r) return;
        cout << l << ' ' << r << ' ' << mn[v] << ' ' << mx[v] << '\n';
        mn[v << 1] = min(mn[v << 1], mx[v]);
        mn[v << 1 | 1] = min(mn[v << 1 | 1], mx[v]);
        mx[v << 1] = min(mx[v << 1], mx[v]);
        mx[v << 1 | 1] = min(mx[v << 1 | 1], mx[v]);
        mn[v << 1] = max(mn[v << 1], mn[v]);
        mn[v << 1 | 1] = max(mn[v << 1 | 1], mn[v]);
        mx[v << 1] = max(mx[v << 1], mn[v]);
        mx[v << 1 | 1] = max(mx[v << 1 | 1], mn[v]);
        mx[v] = 1e9;
        mn[v] = 0;
    }
    void qmin(int l, int r, int x, int v = 1, int tl = 0, int tr = -1) {
        if (tr < 0) tr += n;
        push(v, tl, tr);
        if (l <= tl && tr <= r) mx[v] = x;
        else {
            int m = (tl + tr) >> 1;
            if (r <= m) qmin(l, r, x, v << 1, tl, m);
            if (m < l) qmin(l, r, x, v << 1 | 1, m + 1, tr);
        }
    }
    void qmax(int l, int r, int x, int v = 1, int tl = 0, int tr = -1) {
        if (tr < 0) tr += n;
        push(v, tl, tr);
        if (l <= tl && tr <= r) mn[v] = x;
        else {
            int m = (tl + tr) >> 1;
            if (r <= m) qmax(l, r, x, v << 1, tl, m);
            if (m < l) qmax(l, r, x, v << 1 | 1, m + 1, tr);
        }
    }
    int get(int i, int v = 1, int l = 0, int r = -1) {
        if (r < 0) r += n;
        push(v, l, r);
        if (l == r) return mn[v];
        int m = (l + r) >> 1;
        if (i > m) return get(i, v << 1 | 1, m + 1, r);
        else return get(i, v << 1, l, m);
    }
};

void buildWall(int n, int k, int op[], int left[], int right[], int height[], int finalHeight[]) {
    segment_tree s(n);
    for (int i = 0; i < k; ++i) {
        if (op[i] == 1) s.qmax(left[i], right[i], height[i]);
        else s.qmin(left[i], right[i], height[i]);
    }
    for (int i = 0; i < n; ++i) finalHeight[i] = s.get(i);
}

• Subtask 1: 0 / 8
• Subtask 2: 0 / 24
• Subtask 3: 0 / 29
• Subtask 4: 0 / 39