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답안 #166497

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
166497 2019-12-02T15:42:55 Z Akashi Two Dishes (JOI19_dishes) C++14
5 / 100
 738 ms 61688 KB 
#include <bits/stdc++.h>
using namespace std;

const int SZ = 1e6 + 5;
const long long INF = 1e18;

int n, m;
long long Arb[4000015], Lazy_scad[4000015], Lazy_max[4000015];

long long a[SZ], b[SZ], s[SZ], s1[SZ], s2[SZ], t[SZ], q[SZ], p[SZ];

void propag_scad(int nod){
    if(Lazy_scad[nod] != 0){
        Arb[nod * 2] += Lazy_scad[nod];
        Arb[nod * 2 + 1] += Lazy_scad[nod];
        Lazy_scad[nod * 2] += Lazy_scad[nod];
        Lazy_scad[nod * 2 + 1] += Lazy_scad[nod];
        Lazy_scad[nod] = 0;
    }
}

void propag_max(int nod){
    if(Lazy_max[nod] != -INF){
        Arb[nod * 2] = max(Arb[nod * 2], Lazy_max[nod]);
        Arb[nod * 2 + 1] = max(Arb[nod * 2 + 1], Lazy_max[nod]);
        Lazy_max[nod * 2] = max(Lazy_max[nod * 2], Lazy_max[nod]);
        Lazy_max[nod * 2 + 1] = max(Lazy_max[nod * 2 + 1], Lazy_max[nod]);
        Lazy_max[nod] = -INF;
    }
}

void update_scad(int x, int y, long long v, int st = 0, int dr = m, int nod = 1){
    if(st != dr) propag_scad(nod), propag_max(nod);

    if(x <= st && dr <= y){
        Lazy_scad[nod] += v;
        Arb[nod] += v;
        return ;
    }

    int mij = (st + dr) / 2;
    if(x <= mij) update_scad(x, y, v, st, mij, nod * 2);
    if(mij + 1 <= y) update_scad(x, y, v, mij + 1, dr, nod * 2 + 1);

    Arb[nod] = max(Arb[nod * 2], Arb[nod * 2 + 1]);
}

void update_max(int x, int y, long long v, int st = 0, int dr = m, int nod = 1){
    if(st != dr) propag_scad(nod), propag_max(nod);

    if(x <= st && dr <= y){
        Lazy_max[nod] = max(v, Lazy_max[nod]);
        Arb[nod] = max(v, Arb[nod]);
        return ;
    }

    int mij = (st + dr) / 2;
    if(x <= mij) update_max(x, y, v, st, mij, nod * 2);
    if(mij + 1 <= y) update_max(x, y, v, mij + 1, dr, nod * 2 + 1);

    Arb[nod] = max(Arb[nod * 2], Arb[nod * 2 + 1]);
}

long long query(int x, int y, int st = 0, int dr = m, int nod = 1){
    if(x <= st && dr <= y) return Arb[nod];
    if(st != dr) propag_scad(nod), propag_max(nod);

    int mij = (st + dr) / 2;
    long long a1 = -INF, a2 = -INF;

    if(x <= mij) a1 = query(x, y, st, mij, nod * 2);
    if(mij + 1 <= y) a2 = query(x, y, mij + 1, dr, nod * 2 + 1);

    return max(a1, a2);
}

vector <pair <int, long long> > v[SZ];

void add_point(int x, int y, long long val){
    v[x].push_back({y, val});
}

int main()
{
//    freopen("1.in", "r", stdin);

    scanf("%d%d", &n, &m);

    for(int i = 1; i <= 4 * m + 4 ; ++i) Lazy_max[i] = -INF;

    for(int i = 1; i <= n ; ++i){
        scanf("%lld%lld%lld", &a[i], &s[i], &p[i]);
        s1[i] = s1[i - 1] + a[i];
    }

    for(int i = 1; i <= m ; ++i){
        scanf("%lld%lld%lld", &b[i], &t[i], &q[i]);
        s2[i] = s2[i - 1] + b[i];
    }

    long long Sum = 0;
    for(int i = 1; i <= n ; ++i){
        long long v = s[i] - s1[i];
        if(v < 0) continue ;

        int st = 1, dr = m;
        while(st <= dr){
            int mij = (st + dr) / 2;

            if(s2[mij] <= v) st = mij + 1;
            else dr = mij - 1;
        }

        if(dr < m) add_point(i - 1, dr + 1, -p[i]);
        Sum += p[i];
    }

    for(int i = 1; i <= m ; ++i){
        long long v = t[i] - s2[i];
        if(v < 0) continue ;

        int st = 1, dr = n;
        while(st <= dr){
            int mij = (st + dr) / 2;

            if(s1[mij] <= v) st = mij + 1;
            else dr = mij - 1;
        }

        add_point(dr, i, q[i]);
    }

    for(int i = 0; i <= n ; ++i){
        if(i > 0){
            for(auto it : v[i - 1]){
                long long val = -INF;
                if(it.first != 0) val = query(0, it.first - 1);
                update_max(it.first, m, val);
            }
        }

        for(auto it : v[i]) update_scad(it.first, m, it.second);
    }

    printf("%lld", Sum + Arb[1]);

    return 0;
}

Compilation message

dishes.cpp: In function 'int main()':
dishes.cpp:87:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d", &n, &m);
     ~~~~~^~~~~~~~~~~~~~~~
dishes.cpp:92:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld%lld%lld", &a[i], &s[i], &p[i]);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
dishes.cpp:97:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld%lld%lld", &b[i], &t[i], &q[i]);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 673 ms 61116 KB Output is correct
2 Correct 644 ms 61688 KB Output is correct
3 Correct 328 ms 55160 KB Output is correct
4 Correct 491 ms 54424 KB Output is correct
5 Correct 24 ms 23928 KB Output is correct
6 Correct 738 ms 59856 KB Output is correct
7 Correct 208 ms 47836 KB Output is correct
8 Correct 130 ms 31040 KB Output is correct
9 Correct 338 ms 54956 KB Output is correct
10 Correct 589 ms 61180 KB Output is correct
11 Correct 263 ms 54920 KB Output is correct

Subtask #2
0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Correct 25 ms 23928 KB Output is correct
2 Correct 25 ms 23900 KB Output is correct
3 Correct 25 ms 23900 KB Output is correct
4 Correct 25 ms 23928 KB Output is correct
5 Correct 24 ms 23928 KB Output is correct
6 Correct 25 ms 23932 KB Output is correct
7 Correct 25 ms 23928 KB Output is correct
8 Correct 25 ms 23824 KB Output is correct
9 Incorrect 24 ms 23928 KB Output isn't correct
10 Halted 0 ms 0 KB -

Subtask #3
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 25 ms 23928 KB Output is correct
2 Correct 25 ms 23900 KB Output is correct
3 Correct 25 ms 23900 KB Output is correct
4 Correct 25 ms 23928 KB Output is correct
5 Correct 24 ms 23928 KB Output is correct
6 Correct 25 ms 23932 KB Output is correct
7 Correct 25 ms 23928 KB Output is correct
8 Correct 25 ms 23824 KB Output is correct
9 Incorrect 24 ms 23928 KB Output isn't correct
10 Halted 0 ms 0 KB -

Subtask #4
0 / 39.0

# 결과 실행 시간 메모리 Grader output
1 Correct 25 ms 23928 KB Output is correct
2 Correct 25 ms 23900 KB Output is correct
3 Correct 25 ms 23900 KB Output is correct
4 Correct 25 ms 23928 KB Output is correct
5 Correct 24 ms 23928 KB Output is correct
6 Correct 25 ms 23932 KB Output is correct
7 Correct 25 ms 23928 KB Output is correct
8 Correct 25 ms 23824 KB Output is correct
9 Incorrect 24 ms 23928 KB Output isn't correct
10 Halted 0 ms 0 KB -

Subtask #5
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 25 ms 23928 KB Output is correct
2 Correct 25 ms 23900 KB Output is correct
3 Correct 25 ms 23900 KB Output is correct
4 Correct 25 ms 23928 KB Output is correct
5 Correct 24 ms 23928 KB Output is correct
6 Correct 25 ms 23932 KB Output is correct
7 Correct 25 ms 23928 KB Output is correct
8 Correct 25 ms 23824 KB Output is correct
9 Incorrect 24 ms 23928 KB Output isn't correct
10 Halted 0 ms 0 KB -

Subtask #6
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 25 ms 23928 KB Output is correct
2 Correct 25 ms 23900 KB Output is correct
3 Correct 25 ms 23900 KB Output is correct
4 Correct 25 ms 23928 KB Output is correct
5 Correct 24 ms 23928 KB Output is correct
6 Correct 25 ms 23932 KB Output is correct
7 Correct 25 ms 23928 KB Output is correct
8 Correct 25 ms 23824 KB Output is correct
9 Incorrect 24 ms 23928 KB Output isn't correct
10 Halted 0 ms 0 KB -

Subtask #7
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 673 ms 61116 KB Output is correct
2 Correct 644 ms 61688 KB Output is correct
3 Correct 328 ms 55160 KB Output is correct
4 Correct 491 ms 54424 KB Output is correct
5 Correct 24 ms 23928 KB Output is correct
6 Correct 738 ms 59856 KB Output is correct
7 Correct 208 ms 47836 KB Output is correct
8 Correct 130 ms 31040 KB Output is correct
9 Correct 338 ms 54956 KB Output is correct
10 Correct 589 ms 61180 KB Output is correct
11 Correct 263 ms 54920 KB Output is correct
12 Correct 25 ms 23928 KB Output is correct
13 Correct 25 ms 23900 KB Output is correct
14 Correct 25 ms 23900 KB Output is correct
15 Correct 25 ms 23928 KB Output is correct
16 Correct 24 ms 23928 KB Output is correct
17 Correct 25 ms 23932 KB Output is correct
18 Correct 25 ms 23928 KB Output is correct
19 Correct 25 ms 23824 KB Output is correct
20 Incorrect 24 ms 23928 KB Output isn't correct
21 Halted 0 ms 0 KB -

Subtask #8
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 673 ms 61116 KB Output is correct
2 Correct 644 ms 61688 KB Output is correct
3 Correct 328 ms 55160 KB Output is correct
4 Correct 491 ms 54424 KB Output is correct
5 Correct 24 ms 23928 KB Output is correct
6 Correct 738 ms 59856 KB Output is correct
7 Correct 208 ms 47836 KB Output is correct
8 Correct 130 ms 31040 KB Output is correct
9 Correct 338 ms 54956 KB Output is correct
10 Correct 589 ms 61180 KB Output is correct
11 Correct 263 ms 54920 KB Output is correct
12 Correct 25 ms 23928 KB Output is correct
13 Correct 25 ms 23900 KB Output is correct
14 Correct 25 ms 23900 KB Output is correct
15 Correct 25 ms 23928 KB Output is correct
16 Correct 24 ms 23928 KB Output is correct
17 Correct 25 ms 23932 KB Output is correct
18 Correct 25 ms 23928 KB Output is correct
19 Correct 25 ms 23824 KB Output is correct
20 Incorrect 24 ms 23928 KB Output isn't correct
21 Halted 0 ms 0 KB -