为什么开了O2能过，不开过不了

#include <bits/stdc++.h>
using namespace std;
#define ios                      \
    ios::sync_with_stdio(false); \
    cin.tie(0);                  \
    cout.tie(0);
#define mian main
#define pii pair<int, int>

typedef long long ll;
typedef unsigned long long ull;

const int N = 1e5 + 100;

const int mod = 1e9 + 7;

int n, m, k, t;

ll res, ans, cnt;

template <typename type>
inline void read(type& x)
{
    x = 0;
    bool flag(0);
    char ch = getchar();
    while (!isdigit(ch))
        flag = ch == '-', ch = getchar();
    while (isdigit(ch))
        x = (x << 1) + (x << 3) + (ch ^ 48), ch = getchar();
    flag ? x = -x : 0;
}

void solve()
{
    read(n), read(k);
    vector<int> a(n + 1);
    vector<int> p[3];
    priority_queue<pii, vector<pii>, less<pii>> vx;
    priority_queue<pii, vector<pii>, greater<pii>> vn;
    for (int i = 1; i <= n; i++)
        read(a[i]);
    for (int i = 1; i <= n; i++) {
        vn.emplace(make_pair(a[i], i));
        vx.emplace(make_pair(a[i], i));
        if (i >= k) {
            while (vn.top().second <= i - k)
                vn.pop();
            while (vx.top().second <= i - k)
                vx.pop();
            p[1].push_back(vn.top().first);
            p[2].push_back(vx.top().first);
        }
    }
    for (int i = 1; i <= 2; i++) {
        for (auto ii : p[i])
            cout << ii << ' ';
        cout << '\n';
    }
}

int mian()
{
    ios;

    int T = 1;

    while (T--) {
        solve();
    }

    return 0;
}