Submission #951478

#	Time	Username	Problem	Language	Result	Execution time	Memory
951478		Trisanu_Das	Editor (BOI15_edi)	C++17	20 / 100	3039 ms	4372 KiB

edi

#include <bits/stdc++.h>
#define ll long long
using namespace std;

struct pii {
    ll a, b;
};

struct tii {
    ll a, b, c;
};

bool compare_pii(pii a, pii b) {
    return a.a < b.a || (a.a == b.a && a.b < b.b);
}

const int MN = 3e5 + 10;

bool ac[MN];
int le[MN], pre[MN], va[MN];

int main() {
    int n;
    cin >> n;
    for (int i = 1; i <= n; ++i) {
        int v;
        cin >> v;
        if (v > 0) {
            ac[i] = true;
            le[i] = 0;
            va[i] = v;
            pre[i] = 0;
        } else {
            le[i] = -v;
            ac[i] = true;
            pre[i] = 0;
            for (int j = i - 1; j > 0 && pre[i] == 0; --j) if (ac[j] && le[j] < le[i]) pre[i] = j;
            for (int j = pre[i]; j != 0; j = pre[j]) ac[j] = !ac[j];
        }
        int las = 0;
        for (int j = 1; j <= i; ++j) if (le[j] == 0 && ac[j]) las = j;
        cout << va[las] << '\n';
    }
}

• Subtask 1: 20 / 20
• Subtask 2: 0 / 15
• Subtask 3: 0 / 28
• Subtask 4: 0 / 37