結果

問題 No.1826 Fruits Collecting
ユーザー Carpenters-CatCarpenters-Cat
提出日時 2022-01-29 18:05:36
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 378 ms / 2,000 ms
コード長 7,149 bytes
コンパイル時間 2,626 ms
コンパイル使用メモリ 158,360 KB
実行使用メモリ 25,360 KB
最終ジャッジ日時 2024-06-10 17:33:18
合計ジャッジ時間 13,308 ms
ジャッジサーバーID
（参考情報） 		judge2 / judge3
このコードへのチャレンジ
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テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 3 ms
6,812 KB
testcase_01 AC 4 ms
6,944 KB
testcase_02 AC 4 ms
6,944 KB
testcase_03 AC 4 ms
6,940 KB
testcase_04 AC 2 ms
6,940 KB
testcase_05 AC 127 ms
9,424 KB
testcase_06 AC 218 ms
13,648 KB
testcase_07 AC 148 ms
10,316 KB
testcase_08 AC 16 ms
6,940 KB
testcase_09 AC 212 ms
13,008 KB
testcase_10 AC 142 ms
9,932 KB
testcase_11 AC 139 ms
9,680 KB
testcase_12 AC 54 ms
6,944 KB
testcase_13 AC 27 ms
6,944 KB
testcase_14 AC 43 ms
6,940 KB
testcase_15 AC 335 ms
18,132 KB
testcase_16 AC 343 ms
18,052 KB
testcase_17 AC 378 ms
18,252 KB
testcase_18 AC 360 ms
18,480 KB
testcase_19 AC 343 ms
18,084 KB
testcase_20 AC 356 ms
18,112 KB
testcase_21 AC 346 ms
18,124 KB
testcase_22 AC 346 ms
18,784 KB
testcase_23 AC 343 ms
18,252 KB
testcase_24 AC 350 ms
18,000 KB
testcase_25 AC 2 ms
6,940 KB
testcase_26 AC 1 ms
6,940 KB
testcase_27 AC 1 ms
6,944 KB
testcase_28 AC 1 ms
6,944 KB
testcase_29 AC 1 ms
6,940 KB
testcase_30 AC 61 ms
6,944 KB
testcase_31 AC 125 ms
7,380 KB
testcase_32 AC 94 ms
9,684 KB
testcase_33 AC 342 ms
25,360 KB
testcase_34 AC 301 ms
20,556 KB
testcase_35 AC 58 ms
7,380 KB
testcase_36 AC 336 ms
24,228 KB
testcase_37 AC 203 ms
19,408 KB
testcase_38 AC 158 ms
15,696 KB
testcase_39 AC 240 ms
15,240 KB
testcase_40 AC 283 ms
19,220 KB
testcase_41 AC 57 ms
6,940 KB
testcase_42 AC 9 ms
6,944 KB
testcase_43 AC 2 ms
6,940 KB
testcase_44 AC 2 ms
6,944 KB
testcase_45 AC 1 ms
6,944 KB
権限があれば一括ダウンロードができます

ソースコード

diff # 

#include <algorithm>
#include <bitset>
#include <cassert>
#include <cmath>
#include <deque>
#include <iomanip>
#include <iostream>
#include <map>
#include <queue>
#include <random>
#include <set>
#include <stack>
#include <string>
#include <tuple>
#include <utility>
#include <vector>
using namespace std;
using ll = long long;
using Vi = vector<int>;
using VVi = vector<Vi>;
using Vl = vector<ll>;
using VVl = vector<Vl>;
using P = pair<int, int>;
using Vp = vector<P>;
using VVp = vector<Vp>;
using Pl = pair<ll, int>;
using Vpl = vector<Pl>;
using VVpl = vector<Vpl>;
using tup = tuple<ll, ll, int>;
using Vt = vector<tuple<int, int, int>>;
using Pll = pair<ll, ll>;
using Vc = vector<char>;
using VVc = vector<Vc>;
template <class U>
using PQmax = priority_queue<U>;
template <class U>
using PQmin = priority_queue<U, vector<U>, greater<U>>;


void tprsort(int u, const VVi& gr, Vi& tpr, Vi& par);
void tprsort(const VVi& gr, Vi& tpr);
ll mpow(ll x, ll n, ll m = 1e9 + 7);
ll comb(int n, int r, const Vl& kai, const Vl& fkai, ll m = 1e9 + 7);
ll gcd(ll a, ll b);
int LCA(const VVi& par, const Vi& depth, int a, int b);
Vi sccResolve(const VVi& gr);
void dijkstra(const VVi& gr, const VVl& cost, Vl& dist, int s);
class unionfind
{
private:
    Vi par;
    Vi siz;
    Vi val;

public:
    unionfind(int N);
    unionfind();
    int root(int v);
    void merge(int a, int b);
    bool same(int a, int b);
    int value(int a);
};

ll BIT[200020];
int siz;
void init(int N)
{
    siz = N;
    for (int i = 0; i <= siz; i++) {
        BIT[i] = -(ll)1e18;
    }
}
void update(int id, ll x)
{
    while (id <= siz) {
        BIT[id] = max(BIT[id], x);
        id += (id & (-id));
    }
}
ll maxi(int id)
{
    ll ret = -(ll)1e18;
    while (id) {
        ret = max(ret, BIT[id]);
        id -= (id & (-id));
    }
    return ret;
}

int main()
{
    int N;
    cin >> N;
    map<ll, int> mp;
    set<ll> st;
    st.insert(0);
    vector<tuple<ll, ll, ll>> X;
    for (int i = 0; i < N; i++) {
        ll t, x, v;
        cin >> t >> x >> v;
        if (t < abs(x)) {
            continue;
        }
        X.emplace_back(t + x, t - x, v);
        st.insert(t - x);
    }
    sort(X.begin(), X.end());
    vector<ll> A;
    for (auto x : st) {
        mp[x] = A.size();
        A.push_back(x);
    }
    init(A.size());
    ll ans = 0;
    update(mp[0] + 1, 0);
    for (auto [p, q, v] : X) {
        ll kj = maxi(mp[q] + 1) + v;
        ans = max(ans, kj);
        update(mp[q] + 1, kj);
    }
    cout << ans << endl;
}
//Library
void tprsort(const VVi& gr, Vi& tpr)
{
    queue<int> que;
    int N = gr.size();
    Vi siz(N, 0);
    for (int i = 0; i < N; i++) {
        for (int j : gr[i]) {
            siz[j]++;
        }
    }
    for (int i = 0; i < N; i++) {
        if (siz[i] == 0) {
            que.push(i);
        }
    }
    while (!que.empty()) {
        int u = que.front();
        que.pop();
        tpr.push_back(u);
        for (int v : gr[u]) {
            siz[v]--;
            if (siz[v] == 0) {
                que.push(v);
            }
        }
    }
    reverse(tpr.begin(), tpr.end());
}
void tprsort(int u, const VVi& gr, Vi& tpr, Vi& par)
{
    //idx[u] = tpr.size();
    /*for (int v : gr[u]) {
        if (par[v] == u || par[v] == -1) {
            par[v] = u;
            tprsort(v, gr, tpr, par);
        }
    }
    tpr.push_back(u);*/
    stack<int> st;
    st.push(u);
    bool vis[2000020];
    for (int i = 0; i <= gr.size(); i++) {
        vis[i] = false;
    }
    while (!st.empty()) {
        int v = st.top();
        if (!vis[v]) {
            vis[v] = true;
            for (int p : gr[v]) {
                if (par[p] == -1) {
                    par[p] = v;
                    st.push(p);
                }
            }
        } else {
            tpr.push_back(v);
            st.pop();
        }
    }
}

Vi sccResolve(const VVi& gr)
{
    int N = gr.size();
    Vi tpr;
    Vi par(N, -1);
    for (int i = 0; i < N; i++) {
        if (par[i] == -1) {
            tprsort(i, gr, tpr, par);
        }
    }
    Vi ret(N, -1);
    int now = 0;
    for (int i = N - 1; i >= 0; i--) {
        int u = tpr[i];
        if (ret[u] != -1) {
            continue;
        }
        ret[u] = now;
        stack<int> st;
        st.push(u);
        while (!st.empty()) {
            int v = st.top();
            st.pop();
            for (int p : gr[v]) {
                if (ret[p] == -1) {
                    st.push(p);
                    ret[p] = now;
                }
            }
        }
        now++;
    }
    return ret;
}

ll gcd(ll a, ll b)
{
    while (b) {
        a %= b;
        swap(a, b);
    }
    return a;
}
ll mpow(ll x, ll n, ll m)
{
    ll ret = 1;
    while (n) {
        if (n % 2) {
            ret *= x;
            ret %= m;
        }
        x = (x * x) % m;
        n /= 2;
    }
    return ret;
}
ll comb(int n, int r, const Vl& kai, const Vl& fkai, ll m)
{
    if (n < 0 || r < 0 || n < r) {
        return 0;
    }
    ll ret = kai[n];
    ret *= fkai[r];
    ret %= m;
    ret *= fkai[n - r];
    ret %= m;
    return ret;
}

int LCA(const VVi& par, const Vi& depth, int a, int b)
{
    if (depth[a] < depth[b]) {
        swap(a, b);
    }
    int dis = depth[a] - depth[b];
    for (int i = 19; i >= 0; i--) {
        if ((dis >> i) & 1) {
            a = par[i][a];
        }
    }
    if (a == b) {
        return a;
    }
    for (int i = 19; i >= 0; i--) {
        if (par[i][a] != par[i][b]) {
            a = par[i][a];
            b = par[i][b];
        }
    }
    return par[0][a];
}

void dijkstra(const VVi& gr, const VVl& cost, Vl& dist, int s)
{
    ll INF = (ll)1e18;
    dist.assign(gr.size(), INF);
    dist[s] = 0;
    PQmin<Pl> pque;
    pque.push(make_pair(0, s));
    while (!pque.empty()) {
        auto [L, u] = pque.top();
        pque.pop();
        while (L != dist[u] && !pque.empty()) {
            tie(L, u) = pque.top();
            pque.pop();
        }
        for (int i = 0; i < gr[u].size(); i++) {
            int v = gr[u][i];
            ll c = cost[u][i];
            if (dist[v] > c + L) {
                dist[v] = c + L;
                pque.push(make_pair(dist[v], v));
            }
        }
    }
    return;
}
unionfind::unionfind(int N)
{
    par.resize(N + 1);
    siz.assign(N + 1, 1);
    val.assign(N + 1, 0);
    for (int i = 0; i <= N; i++) {
        par[i] = i;
    }
}
unionfind::unionfind()
{
    par.resize(100010);
    siz.assign(100010, 1);
    val.assign(100010, 0);
    for (int i = 0; i <= 100010; i++) {
        par[i] = i;
    }
}
int unionfind::root(int v)
{
    if (v == par[v]) {
        return v;
    }
    return par[v] = root(par[v]);
}
void unionfind::merge(int a, int b)
{
    a = root(a);
    b = root(b);
    if (a == b) {
        return;
    }
    if (siz[a] < siz[b]) {
        int t = a;
        a = b;
        b = t;
    }
    par[b] = a;
    siz[a] += siz[b];
    /*
    ここにvalについての演算処理を書く
    */
}
bool unionfind::same(int a, int b)
{
    a = root(a);
    b = root(b);
    return a == b;
}
int unionfind::value(int a)
{
    return siz[this->root(a)];
}
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