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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
#570648#9319. Bull Farmyukino_yukinoshitaWA 0ms10124kbC++143.3kb2024-09-17 16:53:362024-09-17 16:53:41

Judging History

你现在查看的是最新测评结果

  • [2024-09-17 16:53:41]
  • 评测
  • 测评结果:WA
  • 用时:0ms
  • 内存:10124kb
  • [2024-09-17 16:53:36]
  • 提交

answer

#include <bits/stdc++.h>

using namespace std;

const int N = 2005;
const int M = 1e6 + 5;

int n, m, l, t[N][N];
int vis[N], flg[N], u1[N], u2[N], tt[N];
struct Qry {int a, b, c, id;} q[M];

bool cmp(Qry x, Qry y) {return x.c < y.c;}

bitset<2048> f[N];

int fa[N];
int find(int x) {return fa[x] == x ? x : fa[x] = find(fa[x]);}
void link(int x, int y)
{
    for(int i = 1; i <= n; i++)
        if(f[i][x]) f[i] |= f[y];
}
void merge(int x, int y)
{
    x = find(x), y = find(y);
    link(x, y), link(y, x);
    fa[y] = x;
}

bool vs[N];
bool g[N][N];

bool bfs(int s, int t)
{
    memset(vs, 0, sizeof(vs));
    queue<int> que;
    que.push(s); vs[s] = 1;
    while(!que.empty())
    {
        int u = que.front(); que.pop();
        if(u == t) return 1;
        for(int i = 1; i <= n; i++) if(f[u][i] && !vs[i])
            que.push(i), vs[i] = 1;
    }
    return 0;
}

void solve()
{
    cin >> n >> l >> m;
    for(int i = 1; i <= l; i++)
    {
        string s; cin >> s;
        for(int j = 1; j <= n; j++) vis[j] = 0;
        int cnt = 0;
        for(int j = 1; j <= n; j++)
        {
            t[i][j] = 50 * (s[2 * j - 2] - '0') + s[2 * j - 1] - '0';
            // cout << t[i][j] << " \n"[j == n];
            if(vis[t[i][j]])
            {
                cnt++;
                if(cnt == 1) flg[i] = 1, u1[i] = j, u2[i] = vis[t[i][j]];
                else flg[i] = 2;
            }
            vis[t[i][j]] = j;
        }
        if(flg[i] == 1)
        {
            for(int j = 1; j <= n; j++) if(!vis[j])
            {
                tt[i] = j;
                break;
            }
        }
    }

    // cout << "\n";

    for(int i = 1; i <= m; i++)
    {
        string s; cin >> s;
        q[i].a = 50 * (s[0] - '0') + s[1] - '0';
        q[i].b = 50 * (s[2] - '0') + s[3] - '0';
        q[i].c = 50 * (s[4] - '0') + s[5] - '0';
        q[i].id = i;
        // cerr << q[i].a << " " << q[i].b << " " << q[i].c << "\n";
    }
    sort(q + 1, q + m + 1, cmp);
    memset(vis, 0, sizeof(vis));
    for(int i = 1; i <= n; i++) f[i][i] = 1, fa[i] = i;
    memset(g, 0, sizeof(g));

    string ans; ans.resize(m);
    for(int i = 1, cc = 1; i <= m; i++)
    {
        for(; cc <= q[i].c; cc++)
        {
            if(flg[cc] == 2) continue;
            if(flg[cc] == 1)
            {
                g[u1[cc]][tt[cc]] = 1;
                g[u2[cc]][tt[cc]] = 1;
                continue;
            }
            for(int u = 1; u <= n; u++) if(vis[u] == 0)
            {
                int st = u;
                bool ok = 0;
                bitset<2048> to, from;
				for(int x = u; !vis[x]; x = t[cc][x])
                {
                    vis[x] = 1;
                    if(find(x) != find(st)) merge(st, u);
                    g[st][x] = g[x][st] = 1;
                }
            }
        }
        // ans[q[i].id - 1] = f[q[i].a][q[i].b] + '0';
        ans[q[i].id - 1] = bfs(q[i].a, q[i].b) + '0';
    }
    cout << ans << "\n";

    for(int i = 1; i <= n; i++) f[i].reset();
    for(int i = 1; i <= l; i++) flg[i] = 0;
    return;
}

int main()
{

    ios::sync_with_stdio(0);
    cin.tie(0), cout.tie(0);

    int T; cin >> T;
    while(T--) solve();
    return 0;
}

详细

Test #1:

score: 0
Wrong Answer
time: 0ms
memory: 10124kb

input:

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

output:

1000
0000

result:

wrong answer 1st lines differ - expected: '1011', found: '1000'