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답안 #218983

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
218983 2020-04-03T10:38:05 Z nvmdava 별자리 3 (JOI20_constellation3) C++17
100 / 100
 321 ms 74004 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define ff first
#define ss second
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
#define N 200005
#define INF 0x3f3f3f3f
#define MOD 1000000007LL

int a[N];
int l[N], r[N];
vector<pair<int, int> > st[N], tmp;

map<int, ll> ans[N];
ll c[N];

ll res = 0;

void insert(int v, int y, ll s){
    if((--ans[v].upper_bound(y)) -> ss >= s) return;
    ans[v][y] = s;
    auto it = ans[v].upper_bound(y);
    while(it != ans[v].end() && it -> ss <= s)
        it = ans[v].erase(it);
}

void dfs(int v){
    int l = ::l[v];
    int r = ::r[v];
    if(l)
        dfs(l);
    if(r)
        dfs(r);

    ll L, R;

    L = c[l] + (--ans[l].upper_bound(a[v])) -> ss;
    R = c[r] + (--ans[r].upper_bound(a[v])) -> ss;
    c[l] += R;
    c[r] += L;

    if(ans[l].size() > ans[r].size())
        swap(l, r);

    swap(ans[r], ans[v]);
    swap(c[r], c[v]);

    if(!l){
        c[0] = 0;
        ans[0].clear();
        ans[0][1] = 0;
    } else {
        for(auto& x : ans[l])
            insert(v, x.ff, x.ss + c[l] - c[v]);
    }
    for(auto& x : st[v])
        insert(v, x.ff, x.ss + L + R - c[v]);
}

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

    int n;
    cin>>n;
    ans[0][1] = 0;
    for(int i = 1; i <= n; ++i){
        ans[i][1] = 0;
        cin>>a[i];
        while(!tmp.empty() && tmp.back().ff < a[i]){
            l[i] = tmp.back().ss;
            tmp.pop_back();
        }
        if(!tmp.empty())
            r[tmp.back().ss] = i;
        tmp.push_back({a[i], i});
    }

    int q;
    cin>>q;
    while(q--){
        int x, y, s;
        cin>>x>>y>>s;
        res += s;
        st[x].push_back({y, s});
    }

    dfs(tmp[0].ss);

    res -= c[tmp[0].ss] + (--ans[tmp[0].ss].end()) -> ss;

    cout<<res;
}

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 13 ms 14464 KB Output is correct
2 Correct 13 ms 14464 KB Output is correct
3 Correct 13 ms 14464 KB Output is correct
4 Correct 13 ms 14464 KB Output is correct
5 Correct 13 ms 14464 KB Output is correct
6 Correct 13 ms 14464 KB Output is correct
7 Correct 13 ms 14464 KB Output is correct
8 Correct 13 ms 14464 KB Output is correct
9 Correct 13 ms 14512 KB Output is correct
10 Correct 13 ms 14464 KB Output is correct
11 Correct 13 ms 14464 KB Output is correct
12 Correct 13 ms 14464 KB Output is correct
13 Correct 13 ms 14592 KB Output is correct
14 Correct 13 ms 14592 KB Output is correct
15 Correct 13 ms 14464 KB Output is correct
16 Correct 13 ms 14592 KB Output is correct
17 Correct 13 ms 14464 KB Output is correct
18 Correct 13 ms 14464 KB Output is correct
19 Correct 14 ms 14464 KB Output is correct
20 Correct 13 ms 14464 KB Output is correct
21 Correct 13 ms 14464 KB Output is correct
22 Correct 13 ms 14464 KB Output is correct

Subtask #2
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 13 ms 14464 KB Output is correct
2 Correct 13 ms 14464 KB Output is correct
3 Correct 13 ms 14464 KB Output is correct
4 Correct 13 ms 14464 KB Output is correct
5 Correct 13 ms 14464 KB Output is correct
6 Correct 13 ms 14464 KB Output is correct
7 Correct 13 ms 14464 KB Output is correct
8 Correct 13 ms 14464 KB Output is correct
9 Correct 13 ms 14512 KB Output is correct
10 Correct 13 ms 14464 KB Output is correct
11 Correct 13 ms 14464 KB Output is correct
12 Correct 13 ms 14464 KB Output is correct
13 Correct 13 ms 14592 KB Output is correct
14 Correct 13 ms 14592 KB Output is correct
15 Correct 13 ms 14464 KB Output is correct
16 Correct 13 ms 14592 KB Output is correct
17 Correct 13 ms 14464 KB Output is correct
18 Correct 13 ms 14464 KB Output is correct
19 Correct 14 ms 14464 KB Output is correct
20 Correct 13 ms 14464 KB Output is correct
21 Correct 13 ms 14464 KB Output is correct
22 Correct 13 ms 14464 KB Output is correct
23 Correct 14 ms 14720 KB Output is correct
24 Correct 14 ms 14720 KB Output is correct
25 Correct 15 ms 14720 KB Output is correct
26 Correct 14 ms 14720 KB Output is correct
27 Correct 15 ms 14720 KB Output is correct
28 Correct 15 ms 14720 KB Output is correct
29 Correct 14 ms 14720 KB Output is correct
30 Correct 14 ms 14720 KB Output is correct
31 Correct 14 ms 14720 KB Output is correct
32 Correct 14 ms 14976 KB Output is correct
33 Correct 15 ms 14976 KB Output is correct
34 Correct 15 ms 14848 KB Output is correct
35 Correct 15 ms 14848 KB Output is correct
36 Correct 15 ms 14848 KB Output is correct
37 Correct 14 ms 14848 KB Output is correct
38 Correct 14 ms 14976 KB Output is correct
39 Correct 16 ms 14720 KB Output is correct
40 Correct 15 ms 14976 KB Output is correct
41 Correct 14 ms 14720 KB Output is correct
42 Correct 14 ms 14720 KB Output is correct
43 Correct 15 ms 14976 KB Output is correct
44 Correct 14 ms 14720 KB Output is correct

Subtask #3
65.0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Correct 13 ms 14464 KB Output is correct
2 Correct 13 ms 14464 KB Output is correct
3 Correct 13 ms 14464 KB Output is correct
4 Correct 13 ms 14464 KB Output is correct
5 Correct 13 ms 14464 KB Output is correct
6 Correct 13 ms 14464 KB Output is correct
7 Correct 13 ms 14464 KB Output is correct
8 Correct 13 ms 14464 KB Output is correct
9 Correct 13 ms 14512 KB Output is correct
10 Correct 13 ms 14464 KB Output is correct
11 Correct 13 ms 14464 KB Output is correct
12 Correct 13 ms 14464 KB Output is correct
13 Correct 13 ms 14592 KB Output is correct
14 Correct 13 ms 14592 KB Output is correct
15 Correct 13 ms 14464 KB Output is correct
16 Correct 13 ms 14592 KB Output is correct
17 Correct 13 ms 14464 KB Output is correct
18 Correct 13 ms 14464 KB Output is correct
19 Correct 14 ms 14464 KB Output is correct
20 Correct 13 ms 14464 KB Output is correct
21 Correct 13 ms 14464 KB Output is correct
22 Correct 13 ms 14464 KB Output is correct
23 Correct 14 ms 14720 KB Output is correct
24 Correct 14 ms 14720 KB Output is correct
25 Correct 15 ms 14720 KB Output is correct
26 Correct 14 ms 14720 KB Output is correct
27 Correct 15 ms 14720 KB Output is correct
28 Correct 15 ms 14720 KB Output is correct
29 Correct 14 ms 14720 KB Output is correct
30 Correct 14 ms 14720 KB Output is correct
31 Correct 14 ms 14720 KB Output is correct
32 Correct 14 ms 14976 KB Output is correct
33 Correct 15 ms 14976 KB Output is correct
34 Correct 15 ms 14848 KB Output is correct
35 Correct 15 ms 14848 KB Output is correct
36 Correct 15 ms 14848 KB Output is correct
37 Correct 14 ms 14848 KB Output is correct
38 Correct 14 ms 14976 KB Output is correct
39 Correct 16 ms 14720 KB Output is correct
40 Correct 15 ms 14976 KB Output is correct
41 Correct 14 ms 14720 KB Output is correct
42 Correct 14 ms 14720 KB Output is correct
43 Correct 15 ms 14976 KB Output is correct
44 Correct 14 ms 14720 KB Output is correct
45 Correct 214 ms 40056 KB Output is correct
46 Correct 213 ms 39672 KB Output is correct
47 Correct 222 ms 39672 KB Output is correct
48 Correct 213 ms 39932 KB Output is correct
49 Correct 216 ms 39416 KB Output is correct
50 Correct 212 ms 39416 KB Output is correct
51 Correct 215 ms 39544 KB Output is correct
52 Correct 235 ms 39928 KB Output is correct
53 Correct 218 ms 39672 KB Output is correct
54 Correct 213 ms 61676 KB Output is correct
55 Correct 237 ms 55920 KB Output is correct
56 Correct 209 ms 52720 KB Output is correct
57 Correct 217 ms 50416 KB Output is correct
58 Correct 188 ms 51816 KB Output is correct
59 Correct 191 ms 51432 KB Output is correct
60 Correct 266 ms 74004 KB Output is correct
61 Correct 237 ms 46712 KB Output is correct
62 Correct 318 ms 66028 KB Output is correct
63 Correct 233 ms 44664 KB Output is correct
64 Correct 236 ms 45816 KB Output is correct
65 Correct 321 ms 66684 KB Output is correct
66 Correct 236 ms 45176 KB Output is correct