oj.uz

Submission #914952

# Submission time Handle Problem Language Result Execution time Memory
914952 2024-01-23T02:32:22 Z adaawf Weighting stones (IZhO11_stones) C++14
100 / 100
 55 ms 5724 KB 
#include <iostream>
#include <vector>
using namespace std;
int a[100005], b[100005], t[400005], lazy[400005], res[100005];
void push(int v) {
    t[v * 2] += lazy[v];
    t[v * 2 + 1] += lazy[v];
    lazy[v * 2] += lazy[v];
    lazy[v * 2 + 1] += lazy[v];
    lazy[v] = 0;
}
void update(int v, int tl, int tr, int l, int r, int x) {
    if (l > r) return;
    if (tl == l && tr == r) {
        t[v] += x;
        lazy[v] += x;
        return;
    }
    push(v);
    int mid = (tl + tr) / 2;
    update(v * 2, tl, mid, l, min(r, mid), x);
    update(v * 2 + 1, mid + 1, tr, max(l, mid + 1), r, x);
    t[v] = min(t[v * 2], t[v * 2 + 1]);
}
int main() {
    ios::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    int n;
    cin >> n;
    for (int i = 1; i <= n; i++) {
        cin >> a[i] >> b[i];
    }
    for (int i = 1; i <= n; i++) {
        if (b[i] == 1) {
            update(1, 1, n, 1, a[i], -1);
        }
        else {
            update(1, 1, n, 1, a[i] - 1, 1);
        }
        if (t[1] >= 0) res[i] = 1;
    }
    for (int i = 1; i <= n * 4; i++) t[i] = lazy[i] = 0;
    for (int i = 1; i <= n; i++) {
        if (b[i] == 2) {
            update(1, 1, n, 1, a[i], -1);
        }
        else {
            update(1, 1, n, 1, a[i] - 1, 1);
        }
        if (t[1] >= 0) res[i] = 2;
    }
    for (int i = 1; i <= n; i++) {
        if (res[i] == 2) cout << '>';
        else if (res[i] == 1) cout << '<';
        else cout << '?';
        cout << '\n';
    }
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 5 ms 2648 KB Output is correct
11 Correct 31 ms 4028 KB Output is correct
12 Correct 49 ms 5200 KB Output is correct
13 Correct 47 ms 5716 KB Output is correct
14 Correct 52 ms 5512 KB Output is correct
15 Correct 48 ms 5708 KB Output is correct
16 Correct 48 ms 5644 KB Output is correct
17 Correct 46 ms 5456 KB Output is correct
18 Correct 47 ms 5512 KB Output is correct
19 Correct 50 ms 5712 KB Output is correct
20 Correct 46 ms 5724 KB Output is correct
21 Correct 46 ms 5716 KB Output is correct
22 Correct 51 ms 5716 KB Output is correct
23 Correct 47 ms 5716 KB Output is correct
24 Correct 55 ms 5712 KB Output is correct
25 Correct 46 ms 5692 KB Output is correct