Submission #691588

#	Time	Username	Problem	Language	Result	Execution time	Memory
691588		drdilyor	Weighting stones (IZhO11_stones)	C++17	0 / 100	1085 ms	212 KiB

stones

#include <bits/stdc++.h>

using namespace std;
using ll = long long;

signed main() {
    cin.tie(0)->sync_with_stdio(0);
    int q; cin >> q;
    set<int> a, b;
    while (q--) {
        int r, s;
        cin >> r >> s;
        if (s ==1) {
            a.insert(r);
        } else b.insert(r);
        auto ca = a, cb = b;
        int f1 = 1, f2 = 1;
        for (int i : a) {
            auto it = cb.lower_bound(i);
            if (it == cb.end()) f1 = false;
            cb.erase(it);
        }
        for (int i : b) {
            auto it = ca.lower_bound(i);
            if (it == ca.end()) f2 = false;
            ca.erase(it);
        }
        if (f1) cout << "<\n";
        else if (f2) cout << ">\n";
        else cout << "?\n";
    }
    return 0;
}

• Subtask 1: 0 / 100