oj.uz

답안 #592463

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
592463 2022-07-09T08:37:34 Z AA_Surely Meetings 2 (JOI21_meetings2) C++14
20 / 100
 206 ms 189020 KB 
#include <bits/stdc++.h>

#define FOR(i,x,n) 	for(int i=x; i<n; i++)
#define F0R(i,n) 	FOR(i,0,n)
#define ROF(i,x,n) 	for(int i=n-1; i>=x; i--)
#define R0F(i,n) 	ROF(i,0,n)

#define WTF 		cout << "WTF" << endl

#define IOS 		ios::sync_with_stdio(false); cin.tie(0)
#define F 			first
#define S	 		second
#define pb 			push_back

#define ALL(x) 		x.begin(), x.end()
#define RALL(x) 	x.rbegin(), x.rend()

using namespace std;
typedef long long 		LL;

typedef pair<int, int> 	PII;
typedef pair<LL, LL> 	PLL;

typedef vector<int> 	VI;
typedef vector<LL> 		VLL;
typedef vector<PII> 	VPII;
typedef vector<PLL> 	VPLL;

const int N = 4000 + 7;
const int ALPHA = 27;
const int INF = 1e9 + 7;
const int MOD = 1e9 + 7;
const int LOG = 22;

int n;
int dp[N][N], ans[N], sz[N];
PII f[N][N];
VI adj[N];

void init() {
    cin >> n;
    F0R(i, n - 1) {
        int u, v;
        cin >> u >> v;
        adj[--u].pb(--v);
        adj[v].pb(u);
    }

    return;
}

void ins(PII &g, int x) {
    if (x > g.F) {
        swap(g.F, g.S);
        g.F = x;
    }

    else if (x > g.S) g.S = x;
    return;
}

void preD(int now, int par, int h) {
    sz[now] = 1;
    F0R(i, n + 1) f[now][i] = {-INF, -INF};

    for(int on : adj[now]) if (on != par) {
        preD(on, now, h + 1);
        sz[now] += sz[on];

        FOR(i, 1, n + 1)
            ins(f[now][i], f[on][i].F);
    }
    
    FOR(i, 1, n + 1) if (sz[now] >= i && f[now][i].F == -INF)
        ins(f[now][i], h);

    return;
}

void dfs(int now, int par, int h) {
    fill(dp[now], dp[now] + n + 1, -INF);

    for(int on : adj[now]) if (on != par) {
        dfs(on, now, h + 1);
        FOR(i, 1, n + 1) {
            dp[now][i] = max(dp[now][i], dp[on][i]);
            if (n - sz[on] >= i) dp[now][i] = max(dp[now][i], f[on][i].F - h + 1);
        }
    }

    FOR(i, 1, n + 1) dp[now][i] = max(dp[now][i], f[now][i].F + f[now][i].S - 2 * h + 1);
    return;
}

int main() {
    IOS;

    init();
    preD(0, -1, 0);
    dfs(0, -1, 0);

    FOR(i, 1, n + 1) cout << (i & 1 ? 1 : max(dp[0][i / 2], 1)) << '\n';
}

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 424 KB Output is correct
7 Correct 1 ms 424 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 1 ms 468 KB Output is correct
12 Correct 1 ms 468 KB Output is correct
13 Correct 1 ms 552 KB Output is correct
14 Correct 0 ms 468 KB Output is correct
15 Correct 1 ms 468 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 1 ms 468 KB Output is correct
18 Correct 1 ms 480 KB Output is correct
19 Correct 0 ms 468 KB Output is correct
20 Correct 1 ms 556 KB Output is correct
21 Correct 1 ms 468 KB Output is correct

Subtask #2
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 424 KB Output is correct
7 Correct 1 ms 424 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 1 ms 468 KB Output is correct
12 Correct 1 ms 468 KB Output is correct
13 Correct 1 ms 552 KB Output is correct
14 Correct 0 ms 468 KB Output is correct
15 Correct 1 ms 468 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 1 ms 468 KB Output is correct
18 Correct 1 ms 480 KB Output is correct
19 Correct 0 ms 468 KB Output is correct
20 Correct 1 ms 556 KB Output is correct
21 Correct 1 ms 468 KB Output is correct
22 Correct 206 ms 188224 KB Output is correct
23 Correct 167 ms 188100 KB Output is correct
24 Correct 171 ms 186060 KB Output is correct
25 Correct 165 ms 186828 KB Output is correct
26 Correct 160 ms 186376 KB Output is correct
27 Correct 162 ms 188776 KB Output is correct
28 Correct 161 ms 188680 KB Output is correct
29 Correct 168 ms 188756 KB Output is correct
30 Correct 161 ms 188752 KB Output is correct
31 Correct 163 ms 188808 KB Output is correct
32 Correct 172 ms 188824 KB Output is correct
33 Correct 172 ms 189020 KB Output is correct
34 Correct 161 ms 188680 KB Output is correct
35 Correct 162 ms 188756 KB Output is correct
36 Correct 175 ms 188752 KB Output is correct
37 Correct 152 ms 188788 KB Output is correct
38 Correct 167 ms 188876 KB Output is correct

Subtask #3
0 / 80.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 424 KB Output is correct
7 Correct 1 ms 424 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 1 ms 468 KB Output is correct
12 Correct 1 ms 468 KB Output is correct
13 Correct 1 ms 552 KB Output is correct
14 Correct 0 ms 468 KB Output is correct
15 Correct 1 ms 468 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 1 ms 468 KB Output is correct
18 Correct 1 ms 480 KB Output is correct
19 Correct 0 ms 468 KB Output is correct
20 Correct 1 ms 556 KB Output is correct
21 Correct 1 ms 468 KB Output is correct
22 Correct 206 ms 188224 KB Output is correct
23 Correct 167 ms 188100 KB Output is correct
24 Correct 171 ms 186060 KB Output is correct
25 Correct 165 ms 186828 KB Output is correct
26 Correct 160 ms 186376 KB Output is correct
27 Correct 162 ms 188776 KB Output is correct
28 Correct 161 ms 188680 KB Output is correct
29 Correct 168 ms 188756 KB Output is correct
30 Correct 161 ms 188752 KB Output is correct
31 Correct 163 ms 188808 KB Output is correct
32 Correct 172 ms 188824 KB Output is correct
33 Correct 172 ms 189020 KB Output is correct
34 Correct 161 ms 188680 KB Output is correct
35 Correct 162 ms 188756 KB Output is correct
36 Correct 175 ms 188752 KB Output is correct
37 Correct 152 ms 188788 KB Output is correct
38 Correct 167 ms 188876 KB Output is correct
39 Runtime error 94 ms 25112 KB Execution killed with signal 11
40 Halted 0 ms 0 KB -