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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#578023#8212. Football in Osijekucup-team3519#WA 1ms5868kbC++202.6kb2024-09-20 16:03:222024-09-20 16:03:23

Judging History

你现在查看的是最新测评结果

  • [2024-09-20 16:03:23]
  • 评测
  • 测评结果:WA
  • 用时:1ms
  • 内存:5868kb
  • [2024-09-20 16:03:22]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
#define V vector
#define pb push_back

const int MN = 5e5 + 10;

int f[MN], siz[MN];
int par(int x) {
    if(x == f[x]) return x;
    return f[x] = par(f[x]);
}
void mer(int a, int b) {
    a = par(a), b = par(b);
    if(a == b) return;
    f[a] = b;
    siz[b] += siz[a];
}
void ini(int n) {
    for(int i = 1; i <= n; i++) f[i] = i, siz[i] = 1;
}

void solve() {
    int n; cin >> n;
    V<int> a(n + 1);
    V<V<int>> e(n + 1);
    ini(n);
    for(int i = 1; i <= n; i++) cin >> a[i], mer(i, a[i]), e[a[i]].pb(i);
    V<int> vis(n + 1);
    V<int> lim(n + 1);
    V<int> on_cyc(n + 1);
    V<int> longest(n + 1);
    int aim;
    auto cal_cyc = [&](int x, int now, auto dfs) -> int {
        if(vis[x]) {
            aim = vis[x];
            return now - vis[x];
        }
        vis[x] = now;
        int t = dfs(a[x], now + 1, dfs);
        if(now >= aim) on_cyc[x] = 1;
        return t;
    };

    V<int> hav(n + 1);
    auto cal_len = [&](int x, auto dfs) -> int {
        int ans = !on_cyc[x];
        for(auto y : e[x]) {
            if(!on_cyc[y]) ans += dfs(y, dfs);
        }
        return ans;
    };
    for(int i = 1; i <= n; i++) if(par(i) == i) lim[i] = cal_cyc(i, 1, cal_cyc);

    for(int i = 1; i <= n; i++) {
        if(on_cyc[i]) {
            for(auto y : e[i]) {
                if(on_cyc[y]) continue;
                int len = cal_len(y, cal_len);
                // cout << " i : " << y << " " << len << endl;
                if(longest[par(i)] < len) {
                    hav[longest[par(i)]]++;
                    longest[par(i)] = len;
                }
                else hav[len]++;
            }
        }
    }

    V<int> szs, ins(n + 1);
    for(int i = 1; i <= n; i++) if(par(i) == i) {
        for(int j = lim[i]; j <= lim[i] + longest[i]; j++) ins[j] = 1;
        szs.pb(lim[i] + longest[i]);
    }

    for(int i = 1; i <= n; i++) {
        while(hav[i]) szs.pb(i), hav[i]--;
    }

    sort(szs.begin(), szs.end(), greater<int>());
    // for(auto x : szs) cout << x << " ";
    // cout << endl;
    for(int i = 1; i < szs.size(); i++) szs[i] += szs[i - 1];
    assert(szs.back() == n);

    for(int i = 1; i <= n; i++) {
        if(ins[i]) cout << 0 << " ";
        else {
            cout << max(1, int(lower_bound(szs.begin(), szs.end(), i) - szs.begin())) << " ";
        }
    }
    cout << endl;
    //cyc size size...
}

int main() {
    ios::sync_with_stdio(0), cin.tie(0);
    // int t; cin >> t;
    int t = 1;
    while(t--) solve();
}

详细

Test #1:

score: 100
Accepted
time: 1ms
memory: 5804kb

input:

5
2 3 1 3 5

output:

0 1 0 0 1 

result:

ok 5 number(s): "0 1 0 0 1"

Test #2:

score: 0
Accepted
time: 1ms
memory: 5868kb

input:

1
1

output:

0 

result:

ok 1 number(s): "0"

Test #3:

score: 0
Accepted
time: 1ms
memory: 5800kb

input:

2
2 2

output:

0 0 

result:

ok 2 number(s): "0 0"

Test #4:

score: -100
Wrong Answer
time: 1ms
memory: 5540kb

input:

10
4 7 2 8 4 3 4 9 7 3

output:

1 1 1 0 0 0 0 0 1 2 

result:

wrong answer 8th numbers differ - expected: '1', found: '0'