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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
#587603#9319. Bull FarmyxyWA 204ms5672kbC++173.9kb2024-09-24 20:47:302024-09-24 20:47:32

Judging History

你现在查看的是最新测评结果

  • [2024-09-24 20:47:32]
  • 评测
  • 测评结果:WA
  • 用时:204ms
  • 内存:5672kb
  • [2024-09-24 20:47:30]
  • 提交

answer

#include<bits/stdc++.h>

#define N 2097
#define M 31
#define LL long long
#define pii pair<int, int> 
#define pll pair<LL, LL>
#define fi first
#define se second
#define pb push_back
#define lbd lower_bound
#define ubd upper_bound
#define IO ios :: sync_with_stdio(false), cin.tie(0)

using namespace std;

const LL INF = 10000000000000000LL;

int n, l, q, t[N][N], a[N], b[N], c[N], id[N], ans[N];
int cnt[N];

string str; 

vector<int> g[N];

bool vis[N][N];

struct DSU {
    int f[N], n;
    void init(int ln) {
        n = ln;
        for (int i = 1; i <= n; i ++) f[i] = i;
        return;
    }
    int find(int v) {
        if (f[v] == v) return v;
        return f[v] = find(f[v]);
    }
    void merge(int x, int y) {
        x = find(x); y = find(y); 
        if (x == y) return;
        if (g[x].size() < g[y].size()) swap(x, y);
        for (auto v : g[y]) 
            if(find(v) != x) g[x].pb(find(v)), vis[x][find(v)] = 1;
        f[y] = x;
        return;
    }
    bool check(int x, int y) {
        return find(x)  == find(y);
    }
} dsu;

void dfs(int now, int u) {
    if (vis[now][u]) return;
    vis[now][u] = 1;
    for (auto v : g[u]) {
        v = dsu.find(v); 
        if (!vis[now][v]) 
            dfs(now, v);
    }
}

void update(int ti) {
    for (int i = 1; i <= n; i ++) cnt[i] = 0;
    for (int i = 1; i <= n; i ++) cnt[t[ti][i]] ++;
    int cc = 0; 
    for (int i = 1; i <= n; i ++) if (cnt[i] > 0) cc ++;
    if (cc < n - 1) return;
    if (cc == n) { 
        for (int i = 1; i <= n; i ++) 
            dsu.merge(i, t[ti][i]);
        for (int i = 1; i <= n; i ++) if (dsu.find(i) == i) {
            for (auto &v : g[i]) v = dsu.find(v); 
            sort(g[i].begin(), g[i].end());
            g[i].resize(unique(g[i].begin(), g[i].end()) - g[i].begin());
        }
    } else {
        int v = 0, x = 0, y = 0; 
        for (int i = 1; i <= n; i ++) if (cnt[i] == 2) v = i; 
        for (int i = 1; i <= n; i ++) if (t[ti][i] == v) { 
            if (!x) x = i; 
            else y = i;
        }
        for (int i = 1; i <= n; i ++) if (cnt[i] == 0) v = i;
        for (int i = 1; i <= n; i ++) if (i == dsu.find(i) && vis[i][x] && !vis[i][v]) 
            dfs(i, v);
        for (int i = 1; i <= n; i ++) if (i == dsu.find(i) && vis[i][y] && !vis[i][v]) 
            dfs(i, v);
    }
    return;
}


void solve() {
    cin >> n >> l >> q;

    dsu.init(n);
    for (int i = 1; i <= n; i ++) vis[i][i] = 1;

    auto decode = [&] (string str) {
        vector<int> st; st.clear(); 
        for (int i = 0; i < (int) str.length(); i += 2) {
            auto c = str[i]; 
            auto h = str[i + 1];
            st.pb((c - 48) * 50 + h - 48);
        }
        return st;
    };

    for (int i = 1; i <= l; i ++) {
        cin >> str; 
        vector<int> tmp = decode(str); 
        for (int j = 1; j <= n; j ++) t[i][j] = tmp[j - 1];
    }

    for (int i = 1; i <= q; i ++) {
        cin >> str; 
        vector<int> tmp = decode(str); 
        a[i] = tmp[0]; b[i] = tmp[1]; c[i] = tmp[2]; 
        id[i] = i;
    }

    sort(id + 1, id + q + 1, [&] (int x, int y) -> bool {
        return c[x] < c[y];
    });

    int ind = 0;
    for (int i = 1; i <= q; i ++) {
        int p = id[i]; 
        while (ind < c[p] && ind + 1 <= l) {
            ind ++;
            update(ind);
        }
        a[p] = dsu.find(a[p]); 
        b[p] = dsu.find(b[p]);
        ans[p] = (a[p] == b[p]) || (vis[a[p]][b[p]]);
    }
    string pans; pans.clear(); 
    for (int i = 1; i <= q; i ++) {
        if (ans[i]) pans.pb('1'); 
        else pans.pb('0');
    }
    cout << pans << "\n";    
    for (int i = 1; i <= n; i ++) 
        for (int j = 1; j <= n; j ++) vis[i][j] = 0;
    for (int i = 1; i <= n; i ++) g[i].clear();
}

int main() {
    // IO;
    int T;
    cin >> T;
    while (T --) solve(); 
    return 0;
}

详细

Test #1:

score: 100
Accepted
time: 1ms
memory: 5672kb

input:

2
5 2 4
0305040201
0404040404
030300
020500
050102
020501
6 2 4
030603010601
010203060504
030202
060402
050602
060401

output:

1011
0100

result:

ok 2 lines

Test #2:

score: 0
Accepted
time: 1ms
memory: 5664kb

input:

1
3 3 6
020202
030301
030201
020102
030203
010201
010303
020303
010202

output:

010101

result:

ok single line: '010101'

Test #3:

score: -100
Wrong Answer
time: 204ms
memory: 5592kb

input:

200
10 10 5000
01060:04020305080709
0103070:060204050908
09070503080401060:02
050308010204090:0607
03010502040607080:09
03080109020504060:07
06050:09040302080107
07080305010409060:02
030809010:0204060507
0:060908070201050304
060700
090:03
09080:
070405
010703
0:0100
080601
030600
070206
0:0:09
08040...

output:

000000000001010000000000100010000000000001000000100000000000010000000000000110000000000001000000000000000100100000101000001000000000000001000000000000110000000000000000000000000000000010000000000000100000000000100000000101001000000000010100000000000000100000000000000000000010000000000000000001011000...

result:

wrong answer 1st lines differ - expected: '011110001101101111111111111111...1111111111111111101111111111111', found: '000000000001010000000000100010...1111111111111110100111111111011'