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답안 #524580

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
524580 2022-02-09T15:00:29 Z Killer2501 Designated Cities (JOI19_designated_cities) C++14
100 / 100
 318 ms 44356 KB 
#include <bits/stdc++.h>
#define ll long long
#define ld long double
#define ull unsigned long long
#define pb push_back
#define pll pair<ll, int>
#define pii pair<int, int>
#define fi first
#define se second
using namespace std;
const int N = 2e5+5;
const int M = 14;
const ll inf = 1e17;
const int base = 350;
const ll mod = 998244353;
int n, t, m, k, q, b[N], c[N], deg[N];
ll ans, tong, a[N], d[N];
vector<int> gr[N], ask[N];
mt19937_64 mt(chrono::steady_clock::now().time_since_epoch().count());
string s;
struct BIT
{
    int n;
    vector<int> fe;
    BIT(int _n)
    {
        n = _n;
        fe.resize(n+1, 0);
    }
    void add(int id, int x)
    {
        for(; id <= n; id += id & -id)fe[id] += x;
    }
    int get(int id)
    {
        int total = 0;
        for(; id; id -= id & -id)total += fe[id];
        return total;
    }
};
struct node
{
    int v, c, d;
    node(){}
    node(int _v, int _c, int _d)
    {
        v = _v;
        c = _c;
        d = _d;
    }
};
vector<node> vi, adj[N];
void dfs(int u, int p = 0)
{
    for(node x: adj[u])
    {
        if(x.v == p)continue;
        dfs(x.v, u);
        d[u] += d[x.v] + x.c;
    }
}
void dfs1(int u, ll sum, int p = 0)
{
    sum += d[u];
    a[1] = min(a[1], sum);
    for(node x: adj[u])
    {
        if(x.v == p)continue;
        dfs1(x.v, sum-d[x.v]-x.c+x.d, u);
    }
}
void sol()
{
    cin >> n;
    for(int i = 1; i < n; i ++)
    {
        int a, b, c, d;
        cin >> a >> b >> c >> d;
        adj[a].pb(node(b, c, d));
        adj[b].pb(node(a, d, c));
        ++deg[a];
        ++deg[b];
    }
    a[1] = inf;
    dfs(1);
    dfs1(1, 0);
    priority_queue< pll, vector<pll>, greater<pll> > pq;
    for(int i = 1; i <= n; i ++)
    {
        if(deg[i] == 1)
        {
            pq.push({adj[i][0].d, i});
        }
    }
    while(pq.size() > 2)
    {
        pll u = pq.top();
        pq.pop();
        int cnt = 0;
        node par = node(-1, 0, 0);
        //cout << u.se <<" "<<u.fi<<'\n';
        for(node x: adj[u.se])
        {

            if(deg[x.v] > 0)
            {
                --deg[x.v];
                --deg[u.se];
                ++cnt;
                if(deg[x.v] == 1)par = x;
                else
                {
                    //cout <<"res "<< pq.size() <<" "<<a[pq.size()+1]+u.fi<<'\n';
                    a[pq.size()] = a[pq.size()+1]+u.fi;
                }
            }
        }
        //assert(cnt <= 1);
        //cout << "par " << par.v<<" "<<par.d << '\n';
        if(par.v != -1)
            for(node x: adj[par.v])
                if(deg[x.v] > 0)
                    pq.push({u.fi+x.d, par.v});
    }
    cin >> m;
    while(m -- > 0)
    {
        cin >> k;
        cout << a[k] << '\n';
    }
}
int main()
{
    cin.tie(0);
    cout.tie(0);
    ios_base::sync_with_stdio(0);
    #define task "test"
    if(fopen(task".inp", "r"))
	{
		freopen(task".inp", "r", stdin);
		freopen(task".out", "w", stdout);
    }
    int ntest = 1;
    //cin >> ntest;
    while(ntest -- > 0)
    sol();
    return 0;
}

Compilation message

designated_cities.cpp: In function 'int main()':
designated_cities.cpp:140:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  140 |   freopen(task".inp", "r", stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
designated_cities.cpp:141:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  141 |   freopen(task".out", "w", stdout);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 8 ms 14412 KB Output is correct
2 Correct 8 ms 14416 KB Output is correct
3 Correct 8 ms 14336 KB Output is correct
4 Correct 9 ms 14412 KB Output is correct
5 Correct 8 ms 14408 KB Output is correct
6 Correct 8 ms 14408 KB Output is correct
7 Correct 8 ms 14412 KB Output is correct
8 Correct 8 ms 14412 KB Output is correct
9 Correct 8 ms 14412 KB Output is correct
10 Correct 8 ms 14380 KB Output is correct
11 Correct 8 ms 14412 KB Output is correct

Subtask #2
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 14416 KB Output is correct
2 Correct 266 ms 27388 KB Output is correct
3 Correct 229 ms 36108 KB Output is correct
4 Correct 254 ms 27372 KB Output is correct
5 Correct 267 ms 27764 KB Output is correct
6 Correct 260 ms 29152 KB Output is correct
7 Correct 233 ms 28996 KB Output is correct
8 Correct 216 ms 37008 KB Output is correct
9 Correct 193 ms 30792 KB Output is correct

Subtask #3
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 8 ms 14412 KB Output is correct
2 Correct 280 ms 27452 KB Output is correct
3 Correct 251 ms 44208 KB Output is correct
4 Correct 268 ms 32192 KB Output is correct
5 Correct 303 ms 33944 KB Output is correct
6 Correct 268 ms 35512 KB Output is correct
7 Correct 236 ms 37736 KB Output is correct
8 Correct 247 ms 40420 KB Output is correct
9 Correct 192 ms 36628 KB Output is correct

Subtask #4
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 8 ms 14412 KB Output is correct
2 Correct 8 ms 14416 KB Output is correct
3 Correct 8 ms 14336 KB Output is correct
4 Correct 9 ms 14412 KB Output is correct
5 Correct 8 ms 14408 KB Output is correct
6 Correct 8 ms 14408 KB Output is correct
7 Correct 8 ms 14412 KB Output is correct
8 Correct 8 ms 14412 KB Output is correct
9 Correct 8 ms 14412 KB Output is correct
10 Correct 8 ms 14380 KB Output is correct
11 Correct 8 ms 14412 KB Output is correct
12 Correct 8 ms 14412 KB Output is correct
13 Correct 10 ms 14668 KB Output is correct
14 Correct 9 ms 14680 KB Output is correct
15 Correct 9 ms 14540 KB Output is correct
16 Correct 9 ms 14540 KB Output is correct
17 Correct 9 ms 14552 KB Output is correct
18 Correct 9 ms 14540 KB Output is correct
19 Correct 10 ms 14560 KB Output is correct
20 Correct 10 ms 14568 KB Output is correct
21 Correct 10 ms 14668 KB Output is correct
22 Correct 9 ms 14540 KB Output is correct
23 Correct 10 ms 14668 KB Output is correct
24 Correct 9 ms 14684 KB Output is correct
25 Correct 9 ms 14676 KB Output is correct
26 Correct 9 ms 14592 KB Output is correct

Subtask #5
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 14416 KB Output is correct
2 Correct 266 ms 27388 KB Output is correct
3 Correct 229 ms 36108 KB Output is correct
4 Correct 254 ms 27372 KB Output is correct
5 Correct 267 ms 27764 KB Output is correct
6 Correct 260 ms 29152 KB Output is correct
7 Correct 233 ms 28996 KB Output is correct
8 Correct 216 ms 37008 KB Output is correct
9 Correct 193 ms 30792 KB Output is correct
10 Correct 8 ms 14412 KB Output is correct
11 Correct 280 ms 27452 KB Output is correct
12 Correct 251 ms 44208 KB Output is correct
13 Correct 268 ms 32192 KB Output is correct
14 Correct 303 ms 33944 KB Output is correct
15 Correct 268 ms 35512 KB Output is correct
16 Correct 236 ms 37736 KB Output is correct
17 Correct 247 ms 40420 KB Output is correct
18 Correct 192 ms 36628 KB Output is correct
19 Correct 8 ms 14412 KB Output is correct
20 Correct 270 ms 33564 KB Output is correct
21 Correct 214 ms 44356 KB Output is correct
22 Correct 257 ms 32216 KB Output is correct
23 Correct 280 ms 33516 KB Output is correct
24 Correct 281 ms 32488 KB Output is correct
25 Correct 275 ms 33504 KB Output is correct
26 Correct 272 ms 32448 KB Output is correct
27 Correct 259 ms 33600 KB Output is correct
28 Correct 272 ms 35384 KB Output is correct
29 Correct 273 ms 33484 KB Output is correct
30 Correct 260 ms 33420 KB Output is correct
31 Correct 232 ms 36464 KB Output is correct
32 Correct 249 ms 40892 KB Output is correct
33 Correct 208 ms 36968 KB Output is correct

Subtask #6
44.0 / 44.0

# 결과 실행 시간 메모리 Grader output
1 Correct 8 ms 14412 KB Output is correct
2 Correct 8 ms 14416 KB Output is correct
3 Correct 8 ms 14336 KB Output is correct
4 Correct 9 ms 14412 KB Output is correct
5 Correct 8 ms 14408 KB Output is correct
6 Correct 8 ms 14408 KB Output is correct
7 Correct 8 ms 14412 KB Output is correct
8 Correct 8 ms 14412 KB Output is correct
9 Correct 8 ms 14412 KB Output is correct
10 Correct 8 ms 14380 KB Output is correct
11 Correct 8 ms 14412 KB Output is correct
12 Correct 7 ms 14416 KB Output is correct
13 Correct 266 ms 27388 KB Output is correct
14 Correct 229 ms 36108 KB Output is correct
15 Correct 254 ms 27372 KB Output is correct
16 Correct 267 ms 27764 KB Output is correct
17 Correct 260 ms 29152 KB Output is correct
18 Correct 233 ms 28996 KB Output is correct
19 Correct 216 ms 37008 KB Output is correct
20 Correct 193 ms 30792 KB Output is correct
21 Correct 8 ms 14412 KB Output is correct
22 Correct 280 ms 27452 KB Output is correct
23 Correct 251 ms 44208 KB Output is correct
24 Correct 268 ms 32192 KB Output is correct
25 Correct 303 ms 33944 KB Output is correct
26 Correct 268 ms 35512 KB Output is correct
27 Correct 236 ms 37736 KB Output is correct
28 Correct 247 ms 40420 KB Output is correct
29 Correct 192 ms 36628 KB Output is correct
30 Correct 8 ms 14412 KB Output is correct
31 Correct 10 ms 14668 KB Output is correct
32 Correct 9 ms 14680 KB Output is correct
33 Correct 9 ms 14540 KB Output is correct
34 Correct 9 ms 14540 KB Output is correct
35 Correct 9 ms 14552 KB Output is correct
36 Correct 9 ms 14540 KB Output is correct
37 Correct 10 ms 14560 KB Output is correct
38 Correct 10 ms 14568 KB Output is correct
39 Correct 10 ms 14668 KB Output is correct
40 Correct 9 ms 14540 KB Output is correct
41 Correct 10 ms 14668 KB Output is correct
42 Correct 9 ms 14684 KB Output is correct
43 Correct 9 ms 14676 KB Output is correct
44 Correct 9 ms 14592 KB Output is correct
45 Correct 8 ms 14412 KB Output is correct
46 Correct 270 ms 33564 KB Output is correct
47 Correct 214 ms 44356 KB Output is correct
48 Correct 257 ms 32216 KB Output is correct
49 Correct 280 ms 33516 KB Output is correct
50 Correct 281 ms 32488 KB Output is correct
51 Correct 275 ms 33504 KB Output is correct
52 Correct 272 ms 32448 KB Output is correct
53 Correct 259 ms 33600 KB Output is correct
54 Correct 272 ms 35384 KB Output is correct
55 Correct 273 ms 33484 KB Output is correct
56 Correct 260 ms 33420 KB Output is correct
57 Correct 232 ms 36464 KB Output is correct
58 Correct 249 ms 40892 KB Output is correct
59 Correct 208 ms 36968 KB Output is correct
60 Correct 10 ms 14360 KB Output is correct
61 Correct 318 ms 36072 KB Output is correct
62 Correct 253 ms 43784 KB Output is correct
63 Correct 310 ms 34908 KB Output is correct
64 Correct 303 ms 36032 KB Output is correct
65 Correct 314 ms 34736 KB Output is correct
66 Correct 296 ms 36036 KB Output is correct
67 Correct 303 ms 34880 KB Output is correct
68 Correct 309 ms 36412 KB Output is correct
69 Correct 305 ms 37572 KB Output is correct
70 Correct 300 ms 35356 KB Output is correct
71 Correct 300 ms 36192 KB Output is correct
72 Correct 275 ms 38676 KB Output is correct
73 Correct 275 ms 41952 KB Output is correct
74 Correct 234 ms 41228 KB Output is correct