Submission #555465

#	Time	Username	Problem	Language	Result	Execution time	Memory
555465		pokmui9909	Nekameleoni (COCI15_nekameleoni)	C++17	42 / 140	3102 ms	377176 KiB

nekameleoni

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

ll N, K, Q;
const ll INF = 1e18;
struct Node{
    ll len, ans;
    vector<ll> L, R;
    Node(){}
    Node(ll _len, ll _ans){len = _len, ans = _ans; L.resize(55, INF); R.resize(55, -INF);}
};
Node f(Node p, Node q){
    Node ret(p.len + q.len, min(p.ans, q.ans));
    for(ll i = 1; i <= K; i++){
        ret.L[i] = min(p.L[i], q.L[i]);
        ret.R[i] = max(p.R[i], q.R[i]);
    }
    vector<pair<ll, ll>> V;
    for(ll i = 1; i <= K; i++){
        V.push_back({p.R[i], i});
    }
    sort(V.begin(), V.end());
    ll r = -1;
    for(ll i = 0; i < (ll)V.size() - 1; i++){
        if(q.L[V[i].second] == -INF) break;
        r = max(r, q.L[V[i].second]);
        ret.ans = min(ret.ans, r - V[i + 1].first + 1);
    }
    return ret;
}
Node T[400005];
void update(ll n, ll s, ll e, ll k, ll v){
    if(s == e){
        T[n] = Node(1, (K == 1 ? 1 : INF));
        T[n].L[v] = T[n].R[v] = k;
        return;
    }
    ll m = (s + e) / 2;
    if(k <= m) update(n * 2, s, m, k, v);
    else update(n * 2 + 1, m + 1, e, k, v);
    T[n] = f(T[n * 2], T[n * 2 + 1]);
}

int main(){
    cin.tie(0) -> sync_with_stdio(false);

    fill(T, T + 400005, Node(1, INF));
    cin >> N >> K >> Q;
    for(ll i = 1; i <= N; i++){
        ll v; cin >> v;
        update(1, 1, N, i, v);
    }
    while(Q--){
        ll op; cin >> op;
        if(op == 1){
            ll k, v; cin >> k >> v;
            update(1, 1, N, k, v);
        } else {
            cout << (T[1].ans > N ? -1 : T[1].ans) << '\n';
        }
    }
}

• Subtask 1: 14 / 14
• Subtask 2: 14 / 14
• Subtask 3: 14 / 14
• Subtask 4: 0 / 14
• Subtask 5: 0 / 14
• Subtask 6: 0 / 14
• Subtask 7: 0 / 14
• Subtask 8: 0 / 14
• Subtask 9: 0 / 14
• Subtask 10: 0 / 14