oj.uz

Submission #956305

# Submission time Handle Problem Language Result Execution time Memory
956305 2024-04-01T14:28:57 Z Pring Designated Cities (JOI19_designated_cities) C++17
100 / 100
 499 ms 54432 KB 
#include <bits/stdc++.h>
using namespace std;

#ifdef MIKU
string dbmc = "\033[1;38;2;57;197;187m", dbrs = "\033[0m";
#define debug(x...) cout << dbmc << "[" << #x << "]: ", dout(x)
void dout() { cout << dbrs << endl; }
template <typename T, typename ...U>
void dout(T t, U ...u) { cout << t << (sizeof...(u) ? ", " : ""); dout(u...); }
#else
#define debug(...) 39
#endif

#define int long long
#define fs first
#define sc second
#define mp make_pair
#define FOR(i, j, k) for (int i = j, Z = k; i < Z; i++)
typedef pair<int, int> pii;

const int MXN = 200005;
int n, q, br, eu[MXN], ev[MXN], a[MXN], b[MXN];
vector<int> eid[MXN];
int ans[MXN];

int nsz[MXN], fsz[MXN], rt;
pii dp[MXN];

void GUIDE(int id, int par) {
    nsz[id] = 0;
    for (auto &e : eid[id]) {
        int i = eu[e] ^ ev[e] ^ id;
        if (i == par) continue;
        if (id == ev[e]) {
            swap(eu[e], ev[e]);
            swap(a[e], b[e]);
        }
        GUIDE(i, id);
        nsz[id] += a[e] + nsz[i];
    }
}

void PUSH(pii &p, int x) {
    if (x >= p.fs) {
        p.sc = p.fs;
        p.fs = x;
    } else p.sc = max(p.sc, x);
}

void DP(int id, int par, int acc) {
    fsz[id] = acc;
    dp[id] = mp(0LL, 0LL);
    for (auto &e : eid[id]) {
        if (eu[e] != id) continue;
        int i = ev[e];
        DP(i, id, acc - a[e] + b[e]);
        PUSH(dp[id], dp[i].fs + a[e]);
    }
}

int CALC_1() {
    return *min_element(fsz + 1, fsz + n + 1);
}

int CALC_2() {
    rt = 1;
    FOR(i, 2, n + 1) if (fsz[rt] - dp[rt].fs - dp[rt].sc > fsz[i] - dp[i].fs - dp[i].sc) rt = i;
    return fsz[rt] - dp[rt].fs - dp[rt].sc;
}

namespace TREE {

    pii son[MXN];
    int acc[MXN];
    multiset<int> MS;
    void get_info(int id, int par) {
        son[id] = mp(0LL, 0LL);
        for (auto &e : eid[id]) {
            if (eu[e] != id) continue;
            int i = ev[e];
            get_info(i, id);
            son[id] = max(son[id], mp(a[e] + son[i].fs, e));
        }
    }

    void decompose(int id, int par, int val) {
        debug(id, par, val);
        if (eid[id].size() == 1) {
            MS.insert(val);
            return;
        }
        decompose(ev[son[id].sc], id, val + a[son[id].sc]);
        for (auto &e : eid[id]) {
            if (eu[e] != id) continue;
            if (e == son[id].sc) continue;
            decompose(ev[e], id, a[e]);
        }
    }

    void DO(int rt) {
        get_info(rt, 0);
        for (auto &e : eid[rt]) {
            decompose(ev[e], rt, a[e]);
        }
        if (dp[rt].fs != 0) MS.erase(MS.find(dp[rt].fs));
        if (dp[rt].sc != 0) MS.erase(MS.find(dp[rt].sc));
        int ptr = 3;
        for (auto it = MS.rbegin(); it != MS.rend(); it++, ptr++) ans[ptr] = ans[ptr - 1] - *it;
        FOR(i, ptr, n + 1) ans[i] = ans[i - 1];
    }
}

void miku() {
    cin >> n;
    FOR(i, 0, n - 1) {
        cin >> eu[i] >> ev[i] >> a[i] >> b[i];
        eid[eu[i]].push_back(i);
        eid[ev[i]].push_back(i);
    }
    GUIDE(1, 0);
    DP(1, 0, nsz[1]);
    ans[1] = CALC_1();
    ans[2] = CALC_2();
    GUIDE(rt, 0);
    TREE::DO(rt);
    cin >> q;
    while (q--) {
        cin >> br;
        cout << ans[br] << '\n';
    }
}

int32_t main() {
    cin.tie(0) -> sync_with_stdio(false);
    cin.exceptions(cin.failbit);
    miku();
    return 0;
}

Compilation message

designated_cities.cpp: In function 'void TREE::decompose(long long int, long long int, long long int)':
designated_cities.cpp:11:20: warning: statement has no effect [-Wunused-value]
   11 | #define debug(...) 39
      |                    ^~
designated_cities.cpp:87:9: note: in expansion of macro 'debug'
   87 |         debug(id, par, val);
      |         ^~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 20824 KB Output is correct
2 Correct 3 ms 20924 KB Output is correct
3 Correct 4 ms 20828 KB Output is correct
4 Correct 3 ms 20828 KB Output is correct
5 Correct 4 ms 20964 KB Output is correct
6 Correct 4 ms 21180 KB Output is correct
7 Correct 3 ms 20828 KB Output is correct
8 Correct 3 ms 20828 KB Output is correct
9 Correct 4 ms 20828 KB Output is correct
10 Correct 3 ms 20988 KB Output is correct
11 Correct 3 ms 21084 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 20828 KB Output is correct
2 Correct 304 ms 34996 KB Output is correct
3 Correct 371 ms 45288 KB Output is correct
4 Correct 325 ms 34896 KB Output is correct
5 Correct 304 ms 35260 KB Output is correct
6 Correct 281 ms 36916 KB Output is correct
7 Correct 219 ms 37060 KB Output is correct
8 Correct 424 ms 46308 KB Output is correct
9 Correct 164 ms 40808 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 20828 KB Output is correct
2 Correct 302 ms 34776 KB Output is correct
3 Correct 404 ms 47944 KB Output is correct
4 Correct 353 ms 34632 KB Output is correct
5 Correct 263 ms 35276 KB Output is correct
6 Correct 313 ms 37052 KB Output is correct
7 Correct 217 ms 40144 KB Output is correct
8 Correct 387 ms 43076 KB Output is correct
9 Correct 169 ms 41060 KB Output is correct

Subtask #4
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 20824 KB Output is correct
2 Correct 3 ms 20924 KB Output is correct
3 Correct 4 ms 20828 KB Output is correct
4 Correct 3 ms 20828 KB Output is correct
5 Correct 4 ms 20964 KB Output is correct
6 Correct 4 ms 21180 KB Output is correct
7 Correct 3 ms 20828 KB Output is correct
8 Correct 3 ms 20828 KB Output is correct
9 Correct 4 ms 20828 KB Output is correct
10 Correct 3 ms 20988 KB Output is correct
11 Correct 3 ms 21084 KB Output is correct
12 Correct 4 ms 20824 KB Output is correct
13 Correct 5 ms 21084 KB Output is correct
14 Correct 5 ms 21084 KB Output is correct
15 Correct 5 ms 21084 KB Output is correct
16 Correct 5 ms 21084 KB Output is correct
17 Correct 6 ms 21084 KB Output is correct
18 Correct 5 ms 21084 KB Output is correct
19 Correct 5 ms 21084 KB Output is correct
20 Correct 5 ms 20976 KB Output is correct
21 Correct 5 ms 21084 KB Output is correct
22 Correct 6 ms 21336 KB Output is correct
23 Correct 4 ms 21084 KB Output is correct
24 Correct 5 ms 21340 KB Output is correct
25 Correct 5 ms 21084 KB Output is correct
26 Correct 5 ms 21336 KB Output is correct

Subtask #5
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 20828 KB Output is correct
2 Correct 304 ms 34996 KB Output is correct
3 Correct 371 ms 45288 KB Output is correct
4 Correct 325 ms 34896 KB Output is correct
5 Correct 304 ms 35260 KB Output is correct
6 Correct 281 ms 36916 KB Output is correct
7 Correct 219 ms 37060 KB Output is correct
8 Correct 424 ms 46308 KB Output is correct
9 Correct 164 ms 40808 KB Output is correct
10 Correct 4 ms 20828 KB Output is correct
11 Correct 302 ms 34776 KB Output is correct
12 Correct 404 ms 47944 KB Output is correct
13 Correct 353 ms 34632 KB Output is correct
14 Correct 263 ms 35276 KB Output is correct
15 Correct 313 ms 37052 KB Output is correct
16 Correct 217 ms 40144 KB Output is correct
17 Correct 387 ms 43076 KB Output is correct
18 Correct 169 ms 41060 KB Output is correct
19 Correct 3 ms 20828 KB Output is correct
20 Correct 350 ms 34772 KB Output is correct
21 Correct 408 ms 54432 KB Output is correct
22 Correct 278 ms 39680 KB Output is correct
23 Correct 338 ms 41300 KB Output is correct
24 Correct 287 ms 39984 KB Output is correct
25 Correct 338 ms 41244 KB Output is correct
26 Correct 307 ms 40020 KB Output is correct
27 Correct 326 ms 41536 KB Output is correct
28 Correct 365 ms 43068 KB Output is correct
29 Correct 340 ms 40744 KB Output is correct
30 Correct 291 ms 41420 KB Output is correct
31 Correct 278 ms 44124 KB Output is correct
32 Correct 424 ms 49992 KB Output is correct
33 Correct 157 ms 47440 KB Output is correct

Subtask #6
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 20824 KB Output is correct
2 Correct 3 ms 20924 KB Output is correct
3 Correct 4 ms 20828 KB Output is correct
4 Correct 3 ms 20828 KB Output is correct
5 Correct 4 ms 20964 KB Output is correct
6 Correct 4 ms 21180 KB Output is correct
7 Correct 3 ms 20828 KB Output is correct
8 Correct 3 ms 20828 KB Output is correct
9 Correct 4 ms 20828 KB Output is correct
10 Correct 3 ms 20988 KB Output is correct
11 Correct 3 ms 21084 KB Output is correct
12 Correct 3 ms 20828 KB Output is correct
13 Correct 304 ms 34996 KB Output is correct
14 Correct 371 ms 45288 KB Output is correct
15 Correct 325 ms 34896 KB Output is correct
16 Correct 304 ms 35260 KB Output is correct
17 Correct 281 ms 36916 KB Output is correct
18 Correct 219 ms 37060 KB Output is correct
19 Correct 424 ms 46308 KB Output is correct
20 Correct 164 ms 40808 KB Output is correct
21 Correct 4 ms 20828 KB Output is correct
22 Correct 302 ms 34776 KB Output is correct
23 Correct 404 ms 47944 KB Output is correct
24 Correct 353 ms 34632 KB Output is correct
25 Correct 263 ms 35276 KB Output is correct
26 Correct 313 ms 37052 KB Output is correct
27 Correct 217 ms 40144 KB Output is correct
28 Correct 387 ms 43076 KB Output is correct
29 Correct 169 ms 41060 KB Output is correct
30 Correct 4 ms 20824 KB Output is correct
31 Correct 5 ms 21084 KB Output is correct
32 Correct 5 ms 21084 KB Output is correct
33 Correct 5 ms 21084 KB Output is correct
34 Correct 5 ms 21084 KB Output is correct
35 Correct 6 ms 21084 KB Output is correct
36 Correct 5 ms 21084 KB Output is correct
37 Correct 5 ms 21084 KB Output is correct
38 Correct 5 ms 20976 KB Output is correct
39 Correct 5 ms 21084 KB Output is correct
40 Correct 6 ms 21336 KB Output is correct
41 Correct 4 ms 21084 KB Output is correct
42 Correct 5 ms 21340 KB Output is correct
43 Correct 5 ms 21084 KB Output is correct
44 Correct 5 ms 21336 KB Output is correct
45 Correct 3 ms 20828 KB Output is correct
46 Correct 350 ms 34772 KB Output is correct
47 Correct 408 ms 54432 KB Output is correct
48 Correct 278 ms 39680 KB Output is correct
49 Correct 338 ms 41300 KB Output is correct
50 Correct 287 ms 39984 KB Output is correct
51 Correct 338 ms 41244 KB Output is correct
52 Correct 307 ms 40020 KB Output is correct
53 Correct 326 ms 41536 KB Output is correct
54 Correct 365 ms 43068 KB Output is correct
55 Correct 340 ms 40744 KB Output is correct
56 Correct 291 ms 41420 KB Output is correct
57 Correct 278 ms 44124 KB Output is correct
58 Correct 424 ms 49992 KB Output is correct
59 Correct 157 ms 47440 KB Output is correct
60 Correct 4 ms 20824 KB Output is correct
61 Correct 316 ms 43864 KB Output is correct
62 Correct 469 ms 53460 KB Output is correct
63 Correct 378 ms 42400 KB Output is correct
64 Correct 381 ms 43820 KB Output is correct
65 Correct 365 ms 42580 KB Output is correct
66 Correct 407 ms 43844 KB Output is correct
67 Correct 315 ms 42676 KB Output is correct
68 Correct 314 ms 44236 KB Output is correct
69 Correct 499 ms 45628 KB Output is correct
70 Correct 390 ms 42904 KB Output is correct
71 Correct 308 ms 44180 KB Output is correct
72 Correct 351 ms 47020 KB Output is correct
73 Correct 474 ms 50908 KB Output is correct
74 Correct 214 ms 51648 KB Output is correct