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답안 #1091280

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1091280 2024-09-20T10:45:21 Z pokmui9909 Designated Cities (JOI19_designated_cities) C++17
100 / 100
 234 ms 63824 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;

#define x first
#define y second

struct Edge{
    ll v, a, b;
};
vector<Edge> T[200005], C[200005];
ll N, Q, Sum = 0, Ans[200005], Val[200005], P[200005];
pair<ll, ll> dp[200005];

void cal1(ll u, ll p){
    for(auto e : T[u]){
        if(e.v == p) continue;
        Val[1] += e.b;
        cal1(e.v, u);
    }
}
void cal2(ll u, ll p){
    for(auto e : T[u]){
        if(e.v == p) continue;
        Val[e.v] = Val[u] - e.b + e.a;
        cal2(e.v, u);
    }
}
ll mxD = 0, U = 1;
void Dia(ll u, ll p, ll d){
    if(mxD < d + Val[u]){
        mxD = d + Val[u], U = u;
    }
    for(auto e : T[u]){
        if(e.v == p) continue;
        Dia(e.v, u, d + e.a + e.b);
    }
}

ll F = 0;
void cal3(ll u, ll p){
    P[u] = p, dp[u] = {0, u};
    for(auto e : T[u]){
        if(e.v == p) continue;
        cal3(e.v, u);
        dp[u] = max(dp[u], {dp[e.v].x + e.a, dp[e.v].y});
        F += e.b;
    }
}

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

    cin >> N;
    for(ll i = 1; i < N; i++){
        ll u, v, a, b; cin >> u >> v >> a >> b;
        T[u].push_back({v, a, b}); T[v].push_back({u, b, a});
        Sum += a + b;
    }
    cal1(1, -1); cal2(1, -1);
    Ans[1] = Sum - *max_element(Val + 1, Val + N + 1);
    Dia(1, -1, 0);
    cal3(U, -1);
    priority_queue<pair<ll, ll>> PQ;
    PQ.push({dp[U].x, U});
    for(ll i = 2; i <= N; i++){
        if(i >= 3) Ans[i] = Ans[i - 1];
        if(PQ.empty()) continue;
        Ans[i] += PQ.top().x;
        ll r = PQ.top().y; PQ.pop();
        ll u = dp[r].y, pv = 0;
        while(1){
            for(auto e : T[u]){
                if(e.v == P[u] || e.v == pv) continue;
                PQ.push({e.a + dp[e.v].x, e.v});
            }
            if(u == r) break;
            pv = u, u = P[u];
        }
    }
    cin >> Q;
    while(Q--){
        ll t; cin >> t;
        cout << (t == 1 ? Ans[t] : Sum - Ans[t] - F) << '\n';
    }
}

Subtask #1
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 9820 KB Output is correct
2 Correct 4 ms 9700 KB Output is correct
3 Correct 4 ms 9876 KB Output is correct
4 Correct 4 ms 9820 KB Output is correct
5 Correct 4 ms 9820 KB Output is correct
6 Correct 4 ms 9820 KB Output is correct
7 Correct 4 ms 9816 KB Output is correct
8 Correct 4 ms 9816 KB Output is correct
9 Correct 4 ms 9820 KB Output is correct
10 Correct 5 ms 9820 KB Output is correct
11 Correct 4 ms 9820 KB Output is correct

Subtask #2
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 9816 KB Output is correct
2 Correct 158 ms 38036 KB Output is correct
3 Correct 234 ms 62036 KB Output is correct
4 Correct 144 ms 35664 KB Output is correct
5 Correct 143 ms 38912 KB Output is correct
6 Correct 163 ms 41420 KB Output is correct
7 Correct 141 ms 39680 KB Output is correct
8 Correct 201 ms 61204 KB Output is correct
9 Correct 155 ms 42548 KB Output is correct

Subtask #3
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 9820 KB Output is correct
2 Correct 159 ms 37972 KB Output is correct
3 Correct 214 ms 62032 KB Output is correct
4 Correct 146 ms 35668 KB Output is correct
5 Correct 139 ms 38756 KB Output is correct
6 Correct 158 ms 42392 KB Output is correct
7 Correct 125 ms 42040 KB Output is correct
8 Correct 209 ms 54004 KB Output is correct
9 Correct 128 ms 41816 KB Output is correct

Subtask #4
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 9820 KB Output is correct
2 Correct 4 ms 9700 KB Output is correct
3 Correct 4 ms 9876 KB Output is correct
4 Correct 4 ms 9820 KB Output is correct
5 Correct 4 ms 9820 KB Output is correct
6 Correct 4 ms 9820 KB Output is correct
7 Correct 4 ms 9816 KB Output is correct
8 Correct 4 ms 9816 KB Output is correct
9 Correct 4 ms 9820 KB Output is correct
10 Correct 5 ms 9820 KB Output is correct
11 Correct 4 ms 9820 KB Output is correct
12 Correct 4 ms 9816 KB Output is correct
13 Correct 5 ms 10208 KB Output is correct
14 Correct 5 ms 10332 KB Output is correct
15 Correct 5 ms 10076 KB Output is correct
16 Correct 5 ms 10072 KB Output is correct
17 Correct 5 ms 10076 KB Output is correct
18 Correct 6 ms 10012 KB Output is correct
19 Correct 5 ms 10072 KB Output is correct
20 Correct 5 ms 10076 KB Output is correct
21 Correct 6 ms 10076 KB Output is correct
22 Correct 5 ms 10076 KB Output is correct
23 Correct 6 ms 10128 KB Output is correct
24 Correct 5 ms 10076 KB Output is correct
25 Correct 5 ms 10340 KB Output is correct
26 Correct 5 ms 10072 KB Output is correct

Subtask #5
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 9816 KB Output is correct
2 Correct 158 ms 38036 KB Output is correct
3 Correct 234 ms 62036 KB Output is correct
4 Correct 144 ms 35664 KB Output is correct
5 Correct 143 ms 38912 KB Output is correct
6 Correct 163 ms 41420 KB Output is correct
7 Correct 141 ms 39680 KB Output is correct
8 Correct 201 ms 61204 KB Output is correct
9 Correct 155 ms 42548 KB Output is correct
10 Correct 4 ms 9820 KB Output is correct
11 Correct 159 ms 37972 KB Output is correct
12 Correct 214 ms 62032 KB Output is correct
13 Correct 146 ms 35668 KB Output is correct
14 Correct 139 ms 38756 KB Output is correct
15 Correct 158 ms 42392 KB Output is correct
16 Correct 125 ms 42040 KB Output is correct
17 Correct 209 ms 54004 KB Output is correct
18 Correct 128 ms 41816 KB Output is correct
19 Correct 7 ms 9820 KB Output is correct
20 Correct 152 ms 38096 KB Output is correct
21 Correct 224 ms 62068 KB Output is correct
22 Correct 146 ms 35780 KB Output is correct
23 Correct 164 ms 38352 KB Output is correct
24 Correct 168 ms 37216 KB Output is correct
25 Correct 152 ms 38344 KB Output is correct
26 Correct 145 ms 37060 KB Output is correct
27 Correct 143 ms 38328 KB Output is correct
28 Correct 162 ms 41676 KB Output is correct
29 Correct 161 ms 38740 KB Output is correct
30 Correct 159 ms 37636 KB Output is correct
31 Correct 143 ms 39676 KB Output is correct
32 Correct 185 ms 54980 KB Output is correct
33 Correct 134 ms 42268 KB Output is correct

Subtask #6
44.0 / 44.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 9820 KB Output is correct
2 Correct 4 ms 9700 KB Output is correct
3 Correct 4 ms 9876 KB Output is correct
4 Correct 4 ms 9820 KB Output is correct
5 Correct 4 ms 9820 KB Output is correct
6 Correct 4 ms 9820 KB Output is correct
7 Correct 4 ms 9816 KB Output is correct
8 Correct 4 ms 9816 KB Output is correct
9 Correct 4 ms 9820 KB Output is correct
10 Correct 5 ms 9820 KB Output is correct
11 Correct 4 ms 9820 KB Output is correct
12 Correct 4 ms 9816 KB Output is correct
13 Correct 158 ms 38036 KB Output is correct
14 Correct 234 ms 62036 KB Output is correct
15 Correct 144 ms 35664 KB Output is correct
16 Correct 143 ms 38912 KB Output is correct
17 Correct 163 ms 41420 KB Output is correct
18 Correct 141 ms 39680 KB Output is correct
19 Correct 201 ms 61204 KB Output is correct
20 Correct 155 ms 42548 KB Output is correct
21 Correct 4 ms 9820 KB Output is correct
22 Correct 159 ms 37972 KB Output is correct
23 Correct 214 ms 62032 KB Output is correct
24 Correct 146 ms 35668 KB Output is correct
25 Correct 139 ms 38756 KB Output is correct
26 Correct 158 ms 42392 KB Output is correct
27 Correct 125 ms 42040 KB Output is correct
28 Correct 209 ms 54004 KB Output is correct
29 Correct 128 ms 41816 KB Output is correct
30 Correct 4 ms 9816 KB Output is correct
31 Correct 5 ms 10208 KB Output is correct
32 Correct 5 ms 10332 KB Output is correct
33 Correct 5 ms 10076 KB Output is correct
34 Correct 5 ms 10072 KB Output is correct
35 Correct 5 ms 10076 KB Output is correct
36 Correct 6 ms 10012 KB Output is correct
37 Correct 5 ms 10072 KB Output is correct
38 Correct 5 ms 10076 KB Output is correct
39 Correct 6 ms 10076 KB Output is correct
40 Correct 5 ms 10076 KB Output is correct
41 Correct 6 ms 10128 KB Output is correct
42 Correct 5 ms 10076 KB Output is correct
43 Correct 5 ms 10340 KB Output is correct
44 Correct 5 ms 10072 KB Output is correct
45 Correct 7 ms 9820 KB Output is correct
46 Correct 152 ms 38096 KB Output is correct
47 Correct 224 ms 62068 KB Output is correct
48 Correct 146 ms 35780 KB Output is correct
49 Correct 164 ms 38352 KB Output is correct
50 Correct 168 ms 37216 KB Output is correct
51 Correct 152 ms 38344 KB Output is correct
52 Correct 145 ms 37060 KB Output is correct
53 Correct 143 ms 38328 KB Output is correct
54 Correct 162 ms 41676 KB Output is correct
55 Correct 161 ms 38740 KB Output is correct
56 Correct 159 ms 37636 KB Output is correct
57 Correct 143 ms 39676 KB Output is correct
58 Correct 185 ms 54980 KB Output is correct
59 Correct 134 ms 42268 KB Output is correct
60 Correct 4 ms 9820 KB Output is correct
61 Correct 190 ms 40760 KB Output is correct
62 Correct 202 ms 63824 KB Output is correct
63 Correct 159 ms 38472 KB Output is correct
64 Correct 181 ms 41140 KB Output is correct
65 Correct 168 ms 39628 KB Output is correct
66 Correct 175 ms 41164 KB Output is correct
67 Correct 185 ms 39628 KB Output is correct
68 Correct 167 ms 41224 KB Output is correct
69 Correct 186 ms 44232 KB Output is correct
70 Correct 184 ms 41216 KB Output is correct
71 Correct 182 ms 40196 KB Output is correct
72 Correct 162 ms 42976 KB Output is correct
73 Correct 207 ms 57008 KB Output is correct
74 Correct 149 ms 46328 KB Output is correct