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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#571382#9319. Bull FarmKeeperHihiWA 153ms87244kbC++205.9kb2024-09-17 22:28:112024-09-17 22:28:13

Judging History

你现在查看的是最新测评结果

  • [2024-09-17 22:28:13]
  • 评测
  • 测评结果:WA
  • 用时:153ms
  • 内存:87244kb
  • [2024-09-17 22:28:11]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;
using i64 = long long;

void print(vector<vector<int>> s, int n, int m) {
    for (int i = 1; i <= n; i++) {
        for (int j = 1; j <= m; j++) {
            cout << s[i][j] << ' ';
        }
        cout << endl;
    }
    cout << endl;
}

void print(vector<vector<int>> &s) {
    for (int i = 0; i < s.size(); i++) {
        for (int j = 0; j < s[0].size(); j++) {
            cout << s[i][j] << " ";
        }
        cout << endl;
    }
    cout << endl;
}

void print(vector<int> &s, int n) {
    for (int i = 1; i<= n; i++) {
        cout << s[i] << " ";
    }
    cout << endl;
}

void print(vector<int> &s) {
    for (int i = 0; i < s.size(); i++) {
        cout << s[i] << " ";
    }
    cout << endl;
}

struct DSU {
    vector<int> f, siz;
    
    DSU() {}
    DSU(int n) {
        init(n);
    }
    
    void init(int n) {
        f.resize(n + 1);
        iota(f.begin(), f.end(), 0);
        siz.assign(n + 1, 1);
    }
    
    int find(int x) {
        while (x != f[x]) {
            x = f[x] = f[f[x]];
        }
        return x;
    }
    
    bool same(int x, int y) {
        return find(x) == find(y);
    }
    
    bool merge(int x, int y) {
        x = find(x);
        y = find(y);
        if (x == y) {
            return false;
        }
        siz[x] += siz[y];
        f[y] = x;
        return true;
    }
    
    int size(int x) {
        return siz[find(x)];
    }
};

int cal(char x, char y) {
    return (x - 48) * 50 + y - 48;
}

void solve() {
    int n, l, q;
    cin >> n >> l >> q;
    vector to(l + 1, vector<int>(n + 1));
    vector inv(l + 1, vector<int>(n + 1));
    vector<int> is_ok(l + 1);
    vector adj(l + 1, DSU(n));
    vector<vector<pair<int, int>>> pos(l + 1);
    for (int i = 1; i <= l; i++) {
        string s;
        cin >> s;
        vector<int> vis(n + 1);
        for (int j = 0, k = 1; j < s.size(); j += 2, k++) {
            to[i][k] = cal(s[j], s[j + 1]);
            inv[i][to[i][k]] = k;
            vis[to[i][k]] = 1;
        }
        int cnt = accumulate(vis.begin() + 1, vis.end(), 0);
        is_ok[i] = cnt == n || cnt == n - 1;
        if (cnt == n) {
            is_ok[i] = 1;
            for (int j = 1; j <= n; j++) {
                adj[i].merge(j, to[i][j]);
            }
        } else if (cnt == n - 1) {
            is_ok[i] = 2;
            int x = 0;
            vis.assign(n + 1, 0);
            for (int j = 1; j <= n; j++) {
                if (vis[to[i][j]]) {
                    x = to[i][j];
                    break;
                }
                vis[to[i][j]] = 1;
            }
            vector<int> a;
            for (int j = 1; j <= n; j++) {
                if (to[i][j] == x) {
                    a.emplace_back(j);
                }
            }
            assert(a.size() == 2);
            // 初始只能在 a[0] 或者 a[1],其结果都是唯一确定的,把对应的几个点 merge 一下就行了

            auto dfs = [&](auto self, int u, int fa, int t) -> void {
                if (vis[u]) {
                    // cout << "edge = " << t << ' ' << fa << endl;
                    pos[i].emplace_back(t, fa);
                    return;
                }
                vis[u] = 1;
                self(self, inv[i][u], u, t);
            };
            vis.assign(n + 1, 0);
            vis[0] = 1;
            inv[i][x] = a[1];
            dfs(dfs, a[0], a[0], a[0]);
            vis.assign(n + 1, 0);
            vis[0] = 1;
            inv[i][x] = a[0];
            dfs(dfs, a[1], a[1], a[1]);
            // 注意是单向边!!!
        }
    }
    vector<vector<tuple<int, int, int>>> qry(l + 1);
    vector<int> ans(q);

    // for (int i = 1; i <= l; i++) {
    //     for (int j = 1; j <= n; j++) {
    //         cout << adj[i].find(j) << " \n"[j == n];
    //     }
    // }

    // cout << "to : \n";
    // print(to, l, n);
    // cout << "inv : \n";
    // print(inv, l, n);
    for (int i = 0; i < q; i++) {
        string s;
        cin >> s;
        int a = cal(s[0], s[1]);
        int b = cal(s[2], s[3]);
        int c = cal(s[4], s[5]);
        // cout << a << ' ' << b << ' ' << c << endl;
        qry[c].emplace_back(a, b, i);
        if (c == 0) {
            ans[i] = a == b;
        }
    }
    DSU dsu(n);
    set<pair<int, int>> yes;
    for (int i = 1; i <= l; i++) {
        // cout << "i = " << i << endl;
        // for (auto [a, b] : yes) cout << a << ' ' << b << endl;
        // cout << "p : ";
        // for (int i = 1; i <= n; i++) {
        //     cout << dsu.find(i) << " \n"[i == n];
        // }
        if (!is_ok[i]) {
            for (auto [a, b, idx] : qry[i]) {
                ans[idx] = dsu.same(a, b);
                if (yes.count({dsu.find(a), dsu.find(b)})) {
                    ans[idx] = 1;
                }
            }
            continue;
        }
        if (is_ok[i] == 1) {
            assert(pos[i].empty());
            for (int j = 1; j <= n; j++) {
                dsu.merge(adj[i].find(j), j);
            }
        } else {
            for (auto t : pos[i]) {
                yes.insert(t);
            }
        }
        set<pair<int, int>> nex;
        for (auto [a, b] : yes) {
            nex.insert({dsu.find(a), dsu.find(b)});
        }
        swap(yes, nex);
        for (auto [a, b, idx] : qry[i]) {
            ans[idx] = dsu.same(a, b);
            if (yes.count({dsu.find(a), dsu.find(b)})) {
                ans[idx] = 1;
            }
        }
    }

    for (int i = 0; i < q; i++) {
        cout << ans[i];
    }
    cout << "\n";

}   

signed main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);

    int t = 1;
    cin >> t;

    while (t--) {
        solve();
    }

    return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 3536kb

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: 0ms
memory: 3892kb

input:

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

output:

010101

result:

ok single line: '010101'

Test #3:

score: 0
Accepted
time: 57ms
memory: 3740kb

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:

011110001101101111111111111111111101111111110111011110110110111011010111111111111111111101111111111110111111110111111111111101111111111110111111111111111111110001100111111111111111111111111011101111111111111111111111111111111111111111011011110100111110111111110111111100111111101110111111111101111110...

result:

ok 200 lines

Test #4:

score: 0
Accepted
time: 62ms
memory: 18924kb

input:

1
2000 1 1000000
M=:]A@8UAY7W2JJ4KEHIA[HSCQ1ENSC`JXR;F3PJ:_@41P9Z=9HR8P<<:DUXRR9^WOQFL?NZP6S@=J0^WE32=6;\U0?88]Q_RNPUMT6YU<4<S]H?:7OCQYOT4YAV1^764ENWSDBED>M7A:BI>KSIR48JQ9B=N\5T3N4A2aF0@>3TI81<G7;YE>W`NMP<:IT4CI3D0=GZC3I\CLQJQBA9BDIS9SAM55KaVA<Z@D=>:Y?CQHUQ5U3a6UVI8OKX9_FAF^7=5M85;<0;8YPAM<7Z7PP7A=N...

output:

000101000101100010001000000010010110000001000001001100000000010000100001000000101100000000010000001000000001110000010110100000111100100000001000000000011001010001000001001000100000000100011001100110010000010000101100000011111000000010000101010010000000010101000001010111100000100000000000000101000100...

result:

ok single line: '000101000101100010001000000010...0101000101000000000010101001000'

Test #5:

score: 0
Accepted
time: 147ms
memory: 87056kb

input:

1
2000 2000 1000000
FVAaH7GRPO;_11Da5J18@3SMG==\G8E8S^6:M4L0JH>MN5IXT>2<7WJ3U8LVJS=;;3F13>0D0>VOIIU@EPHG6ABL6;K?T1PXDERLG07]5C9^GDKG<SBMIW;`4W8P3=469TIPKH0O34523_J5C2MJ17D25Z@=K8H@M>WK<CMK7EO]BPD7B6AW741J5YIHIa1:ERSG>L3N2^F3<4F`DLE@2AA5=8GZK6:192FB736[WMV7:^DA2C:<LK040VJBM3M]WXU50`407TR_?PLF@5VL7OSL...

output:

111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111011111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

result:

ok single line: '111111111111111111111111111111...1111111111111111111111111111111'

Test #6:

score: 0
Accepted
time: 145ms
memory: 83496kb

input:

1
2000 2000 1000000
0102030405060708090:0;0<0=0>0?0@0A0B0C0D0E0F0G0H0I0J0K0L0M0N0O0P0Q0R0S0T0U0V0W0X0Y0Z0[0\0]0^0_0`0a101112131415161718191:1;1<1=1>1?1@1A1B1C1D1E1F1G1H1I1J1K1L1M1N1O1P1Q1R1S1T1U1V1W1X1Y1Z1[1\1]1^1_1`1a202122232425262728292:2;2<2=2>2?2@2A2B2C2D2E2F2G2H2I2J2K2L2M2N2O2P2Q2R2S2T2U2V2W2X...

output:

000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100000000000...

result:

ok single line: '000000000000000000000000000000...0000000000000000000000000000000'

Test #7:

score: 0
Accepted
time: 153ms
memory: 83344kb

input:

1
2000 2000 1000000
0102030405060708090:0;0<0=0>0?0@0A0B0C0D0E0F0G0H0I0J0K0L0M0N0O0P0Q0R0S0T0U0V0W0X0Y0Z0[0\0]0^0_0`0a101112131415161718191:1;1<1=1>1?1@1A1B1C1D1E1F1G1H1I1J1K1L1M1N1O1P1Q1R1S1T1U1V1W1X1Y1Z1[1\1]1^1_1`1a202122232425262728292:2;2<2=2>2?2@2A2B2C2D2E2F2G2H2I2J2K2L2M2N2O2P2Q2R2S2T2U2V2W2X...

output:

010001100010000000101000000110010001001010101100100100000001000000101010100010000001011111010000000001001000010101011111001010101010100100010001011011000010010100110110000100010110101110000011111101100110010100100101010000100100101110100000000101100010100111000011001110100010001010000101111001101000...

result:

ok single line: '010001100010000000101000000110...1010101000010010101000100000111'

Test #8:

score: 0
Accepted
time: 103ms
memory: 87140kb

input:

1
2000 2000 1000000
0102030405060708090:0;0<0=0>0?0@0A0B0C0D0E0F0G0H0I0J0K0L0M0N0O0P0Q0R0S0T0U0V0W0X0Y0Z0[0\0]0^0_0`0a101112131415161718191:1;1<1=1>1?1@1A1B1C1D1E1F1G1H1I1J1K1L1M1N1O1P1Q1R1S1T1U1V1W1X1Y1Z1[1\1]1^1_1`1a202122232425262728292:2;2<2=2>2?2@2A2B2C2D2E2F2G2H2I2J2K2L2M2N2O2P2Q2R2S2T2U2V2W2X...

output:

011010100000000000000000001000001100000110000000100001010000000000000010001000000100000000000000000000100000100000000001100000100011010000000000000000000000000010000001000000010001100010000100000001000000000010000000000000001000010100000000001000000000000000000000001100010000000000000101000000101010...

result:

ok single line: '011010100000000000000000001000...0000000000000100000010010000100'

Test #9:

score: 0
Accepted
time: 94ms
memory: 82308kb

input:

1
2000 2000 1000000
1REKN]@]>9D9177?6E8DU65LCS>X3Z4KJ47@?R43H8C2ADQ<T[GGCZI]CO4SCDNAVCE534S1;0LV<:F[R`A[=89FL^BYGU7F:NBDD2F3SYLQS[O407E\V>>;EOTL=W8VAYMRO[KHRZ7^F6?:<G4R9O3AVG1\1OER1MKNMG01R?=;SWMP28:X>2=GLC1LSU<VMKQ5?KQAS^4QDTC07TK=R01WL@6596@D5IKT?YG?HaQPP:<12ZUF?GARFKJXC`NFIaJ;SXC:80V1Q@Q;FJV]3XSJ...

output:

111101100101100100000000101000110011010001100000001001101000001000010101010010100111100010100110000001000000011101001010110000101000111000010011110100010101100101011111000010000001100001000011010001101000000010100011000110101001100010111010110011001101110010001110110101000000110111010100001000011001...

result:

ok single line: '111101100101100100000000101000...1100010101000011110011110111100'

Test #10:

score: 0
Accepted
time: 68ms
memory: 24816kb

input:

1
1 2000 1000000
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
0...

output:

111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

result:

ok single line: '111111111111111111111111111111...1111111111111111111111111111111'

Test #11:

score: 0
Accepted
time: 105ms
memory: 87244kb

input:

1
2000 2000 1000000
1ILZ2@SO4;BPWLFN@6HMAVQ]NNKR2NU30EP@3WF73^1BSKIP:VS7KQA>T\T63TAAK]8a4@7F0LD3V4LRN?M105L@>A<5D@S=MI9G9O<7<UQaF61VK;EQBEG`F8DOJ?L67;CL=@Q_IAPU2TP:43=O42I85UC\2L18KKP5MSFX73;\PFCQ:IB9?M<:FI?;N1I1>362O:;:1WQ6=Q7T=RW\WJMTQJ40U6JU>_@H:H6K0Y?[>H@K6@5AG]OEUEH>3G5C@OJ1E8O0CaO68??>A\C`:F8T...

output:

111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

result:

ok single line: '111111111111111111111111111111...1111111111111111111111111111111'

Test #12:

score: 0
Accepted
time: 135ms
memory: 87188kb

input:

1
2000 2000 1000000
=H=4F4S`A?@V<E8]HBU>190VP7EDDC6EH3P4CP6K2Z3OP@LI<7H`OM:F:=FOH9BW=<1ZGIK^7P0<9RK73Z1EFKO5QC5L25TCV`HT3D@RQ_2GE<SK;_D^0;>FSL5X9_Q0L\L7TW@_ULQE0Z;MG1O:3>F<MX=:V];@=1A@;^V^E\;F:[8S@SFY340R=@Wa8NSMS[UC5KV6JNV3EA<80_;a>`2:>A28OI=EL2?aTDL3WRNY4H8R2aIY14DAHJ>6UIEOS_?=AF6];\BK3]?<TYU5=`3^...

output:

111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

result:

ok single line: '111111111111111111111111111111...1111111111111111111111111111111'

Test #13:

score: 0
Accepted
time: 61ms
memory: 3696kb

input:

200
10 10 5000
08060705040203010:09
0201090:080706050304
0201050903080:060407
0305010:020706090804
030901080:0706040205
0509070:010803060204
0:060709080203050401
0309010806050:040207
020106090703050:0408
0603020908010:050407
020700
080907
020305
070407
050509
080502
010100
020206
050809
0:0807
02040...

output:

011111111111111111101111111111111111111111111111101011111011111110111010111111111111110111111111111111111011101111111111111010110011011111111111111111011001110110101111110100111101111101101111011111111111111111111110011111110011111110111111101111111110111100111111111111111111111111111111111101011111...

result:

ok 200 lines

Test #14:

score: -100
Wrong Answer
time: 66ms
memory: 3724kb

input:

400
5 5 2500
0405020501
0404050302
0105050105
0304010205
0402030205
040200
010203
040203
030503
050201
010502
010505
030304
020504
050503
050105
030101
020403
030403
030200
010500
050500
030403
050101
040205
030501
010503
050400
030505
040303
050101
020101
050502
020104
050101
040503
010205
050404
0...

output:

000000010100000010010000100110000010010000100000100110011000100110101000010000010010010111000000011000001000000010000011010000000110000110010100101011010010110100011000000010011010110000100110111000000101001010010100010000111101011010111101001100000011100001000000000000111000000001100010001100010000...

result:

wrong answer 5th lines differ - expected: '100011011001011100100000100110...1000000100110001000100010011010', found: '100011011001011100100000100110...1000000100110001000100010011010'