oj.uz

답안 #1039202

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1039202 2024-07-30T14:29:04 Z vjudge1 Pinball (JOI14_pinball) C++17
100 / 100
 119 ms 16840 KB 
#include <bits/stdc++.h>

using namespace std;
using ll = long long;

#define int long long
#define FOR(i, a, b) for (int i = (a); i <= (b); i++)
#define FORD(i, a, b) for (int i = (b); i >= (a); i --)
#define REP(i, a) for (int i = 0; i < (a); ++i)
#define REPD(i, a) for (int i = (a) - 1; i >= 0; --i)

#define MASK(i) (1LL << (i))
#define BIT(x, i) (((x) >> (i)) & 1)


constexpr ll LINF = (1ll << 60);
constexpr int INF = (1ll << 30);
constexpr int Mod = 1e9 + 7;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

/*
    Phu Trong from Nguyen Tat Thanh High School for gifted student
*/

template <class X, class Y>
    bool minimize(X &x, const Y &y){
        X eps = 1e-9;
        if (x > y + eps) {x = y; return 1;}
        return 0;
    }

template <class X, class Y>
    bool maximize(X &x, const Y &y){
        X eps = 1e-9;
        if (x + eps < y) {x = y; return 1;}
        return 0;
    }
int N, M;
#define MAX         100005

struct Info{
    int l, r, m, c;
    Info(){}
    Info(int _l, int _r, int _m, int _c): l(_l), r(_r), m(_m), c(_c){}

    friend istream &operator >> (istream& cin, Info& x){
        cin >> x.l >> x.r >> x.m >> x.c;
        return cin;
    }
} A[MAX];
vector<int> comp;
int find(int x){
    return lower_bound(comp.begin(), comp.end(), x) - comp.begin() + 1;
}

int l[MAX], r[MAX];
namespace SUBTASK_3{
    bool check(void){
        return (M <= 2000);
    }

    void main(void){
        memset(l, 0x3f, (N + 1) * sizeof(int));
        memset(r, 0x3f, (N + 1) * sizeof(int));
        for (int i = 1; i <= N; ++i){
            if (A[i].l == 1) l[i] = A[i].c;
            if (A[i].r == M) r[i] = A[i].c;
            for (int j = 1; j < i; ++j){
                if (A[i].l <= A[j].m && A[j].m <= A[i].r){
                    minimize(l[i], l[j] + A[i].c);
                }
                if (A[i].l <= A[j].m && A[j].m <= A[i].r){
                    minimize(r[i], r[j] + A[i].c);
                }
            }
        }
        int ans = LINF;
        for (int i = 1; i <= N; ++i){
            minimize(ans, l[i] + r[i] - A[i].c);
        }
        cout << (ans >= 1e15 ? -1 : ans);
    }
}


namespace SUBTASK_5{
    struct SegmentTree{
        vector<int> st;
        int n;
        SegmentTree(int _n = 0){
            init(_n);
        }
        void init(int _n){
            st.clear();
            this -> n = _n;
            st.resize((n << 2) + 5, LINF);
        }
        void upd(int p, int val){
            for (minimize(st[p += n], val); p > 0; p >>= 1){
                st[p >> 1] = min(st[p], st[p ^ 1]);
            }
        }
        int query(int l, int r){
            int res = LINF;
            for (l += n, r += n + 1; l < r; l >>= 1, r >>= 1){
                if (l & 1) minimize(res, st[l++]);
                if (r & 1) minimize(res, st[--r]);
            }
            return res;
        }
    };
    void main(void){
        memset(l, 0x3f, (N + 1) * sizeof(int));
        memset(r, 0x3f, (N + 1) * sizeof(int));
        #define SZ(a) (int)a.size()
        SegmentTree myit(M + 1);

        for (int i = 1; i <= N; ++i){
            if (A[i].l == 1) l[i] = A[i].c;
            minimize(l[i], myit.query(A[i].l, A[i].r) + A[i].c);
            myit.upd(A[i].m, l[i]);
        }

        myit.init(SZ(comp));
        for (int i = 1; i <= N; ++i){
            if (A[i].r == M) r[i] = A[i].c;
            minimize(r[i], myit.query(A[i].l, A[i].r) + A[i].c);
            myit.upd(A[i].m, r[i]);
        }
        int ans = LINF;
        for (int i = 1; i <= N; ++i){
            minimize(ans, l[i] + r[i] - A[i].c);
        }
        cout << (ans >= 1e15 ? -1 : ans);
    }
}
void process(void){
    cin >> N >> M;
    for (int i = 1; i <= N; ++i){
        cin >> A[i];
        comp.push_back(A[i].l);
        comp.push_back(A[i].r);
        comp.push_back(A[i].m);
    }
    if(SUBTASK_3 :: check()) {
        SUBTASK_3 :: main(); return;
    }
    comp.push_back(1);
    comp.push_back(M);
    sort(comp.begin(), comp.end());
    comp.resize(unique(comp.begin(), comp.end()) - comp.begin());
    for (int i = 1; i <= N; ++i){
        A[i].l = find(A[i].l);
        A[i].r = find(A[i].r);
        A[i].m = find(A[i].m);
    }
    M = find(M);

    SUBTASK_5 :: main();
}
signed main(){
    #define name "Whisper"
    cin.tie(nullptr) -> sync_with_stdio(false);
    //freopen(name".inp", "r", stdin);
    //freopen(name".out", "w", stdout);
    process();
    return (0 ^ 0);
}

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 2396 KB Output is correct
8 Correct 0 ms 348 KB Output is correct

Subtask #2
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 2396 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct

Subtask #3
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 2396 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 604 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 604 KB Output is correct
20 Correct 1 ms 604 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 604 KB Output is correct
23 Correct 1 ms 500 KB Output is correct
24 Correct 1 ms 604 KB Output is correct

Subtask #4
49.0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 2396 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 604 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 604 KB Output is correct
20 Correct 1 ms 604 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 604 KB Output is correct
23 Correct 1 ms 500 KB Output is correct
24 Correct 1 ms 604 KB Output is correct
25 Correct 9 ms 1684 KB Output is correct
26 Correct 26 ms 4056 KB Output is correct
27 Correct 75 ms 8648 KB Output is correct
28 Correct 67 ms 7456 KB Output is correct
29 Correct 53 ms 6984 KB Output is correct
30 Correct 85 ms 7868 KB Output is correct
31 Correct 119 ms 12728 KB Output is correct
32 Correct 109 ms 11188 KB Output is correct
33 Correct 14 ms 5084 KB Output is correct
34 Correct 52 ms 8820 KB Output is correct
35 Correct 67 ms 16840 KB Output is correct
36 Correct 114 ms 16832 KB Output is correct
37 Correct 94 ms 16832 KB Output is correct
38 Correct 94 ms 16828 KB Output is correct