Submission #391296

#	Time	Username	Problem	Language	Result	Execution time	Memory
391296		BThero	RMQ (NOI17_rmq)	C++17	0 / 100	1 ms	332 KiB

rmq

// chrono::system_clock::now().time_since_epoch().count()
#include <bits/stdc++.h>

#define pb push_back
#define eb emplace_back
#define mp make_pair
#define fi first
#define se second
#define all(x) (x).begin(), (x).end()
#define sz(x) (int)(x).size()
#define rep(i, a, b) for (int i = (a); i < (b); ++i)
#define debug(x) cerr << #x << " = " << x << endl

using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef vector<int> vi;

const int MAXN = (int)1e5 + 5;

int lim[MAXN], ans[MAXN];
array<int, 3> que[MAXN];
pii seg[MAXN];
int n, q;

void solve() {
    cin >> n >> q;
    fill(seg, seg + n, mp(0, n - 1));

    rep (i, 0, q) {
        int l, r, x;
        cin >> l >> r >> x;
        que[i] = {l, r, x};
        seg[x].fi = max(seg[x].fi, l);
        seg[x].se = min(seg[x].se, r);

        rep (j, l, r) {
            lim[j] = max(lim[j], x);
        }
    }

    fill(ans, ans + n, -1);

    rep (i, 0, n) {
        bool found = 0;

        rep (j, seg[i].fi, seg[i].se + 1) {
            if (ans[j] == -1 && lim[j] <= i) {
                ans[j] = i;
                found = 1;
                break;
            }
        }   

        if (!found) {
            rep (i, 0, n) {
                cout << -1 << " \n"[i == n - 1];
            }

            return;
        }
    }

    rep (i, 0, n) {
        cout << ans[i] << " \n"[i == n - 1];
    }
}

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    int tt = 1;

    for (int i = 1; i <= tt; ++i) {
        solve();
    }

    return 0;
}

• Subtask 1: 0 / 23
• Subtask 2: 0 / 44
• Subtask 3: 0 / 33