QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#578513#9319. Bull FarmfanhuaxingyuWA 766ms88980kbC++207.3kb2024-09-20 19:41:282024-09-20 19:41:29

Judging History

你现在查看的是最新测评结果

  • [2024-09-20 19:41:29]
  • 评测
  • 测评结果:WA
  • 用时:766ms
  • 内存:88980kb
  • [2024-09-20 19:41:28]
  • 提交

answer

#include <bits/stdc++.h>
#include<array>
typedef long long ll;
typedef long double ld;
typedef unsigned long long ull;
//#define int long long
#define lowbit(x) ((x) & (-x))
#define ar(x) array<int, x>
#define endl '\n'
#define all(x)  begin(x),end(x)
#define all2(x)  begin(x)+1,end(x)
using namespace std;
using i64 = long long;
const int N = 2e5 + 10;
const int M = 5e5 + 1;
const int INF = 0x3f3f3f3f;
const ll INF2 = 0x3f3f3f3f3f3f3f3f;
const long double PI = 3.1415926535897932384626;
const long double eps = 1e-5;
const ll mod = 19260817;
const ll mod2 = 998244353;
const int base = 131;
const int base2 = 13331;
int dx[] = { 1,-1,0,0 }, dy[] = { 0,0,1,-1 };
int dx2[] = { 2,-2,0,0 }, dy2[] = { 0,0,2,-2 };
ll qpow(ll a, ll b, ll p)
{
    ll ans = 1;
    while (b)
    {
        if (b & 1)
            ans *= a, ans %= p;
        a *= a;
        a %= p;
        b >>= 1;
    }
    return ans % p;
}
ll gcd(ll a, ll b)
{
    return !b ? a : gcd(b, a % b);
}
ll lcm(ll a, ll b)
{
    return a / gcd(a, b) * b;
}
int n, m;
//tim为时间
int dfn[N], low[N], tim = 0, vis[N], cnt = 0, top = 0;//dfn标记dfs遍历的顺序,low标记当前点通过某条边所能回溯到的最早的那个点,vis标记当前点是否在栈内
vector<int>g[2020];//邻接表存图和缩点后的图
int s[N];//栈
int scc[N];//缩点后原点属于缩点后的哪个点
void dfs(int x)
{
    s[++top] = x;
    vis[x] = true;//标记为在栈内
    dfn[x] = low[x] = ++tim;//时间入和出的初标记
    for (int i = 0; i < g[x].size(); ++i)
    {
        int y = g[x][i];
        if (dfn[y] == 0)//如果当前点没被遍历
        {
            dfs(y);//遍历当前当前点
            low[x] = min(low[x], low[y]);//更新low
        }
        else if (vis[y] == true)//如果当前点在栈内则更新low
        {
            low[x] = min(low[x], low[y]);
        }
        //如果不在栈内则不用管
    }
    if (dfn[x] == low[x])//如果当前二者相等
    {
        int t;
        ++cnt;
        do {
            t = s[top--];
            vis[t] = 0;
            scc[t] = cnt;
        } while (t != x);
    }
}
void tarjan()
{
    for (int i = 1; i <= n; ++i)//循环dfs,因为可能不连通
    {
        if (dfn[i] == 0)
            dfs(i);
    }
}
void init()
{
    top = tim = cnt = 0;
    for (int i = 1; i <= n; ++i)
    {
        g[i].clear();
        dfn[i] = scc[i] = low[i] = vis[i] = 0;
    }
}
void solve()
{
    int l, q;
    cin >> n >> l >> q;
    init();
    vector<vector<int>>dis(n + 1, vector<int>(n + 1, INF));
    for (int i = 1; i <= n; ++i)
        dis[i][i] = 0;
    for (int i = 1; i <= l; ++i)
    {
        string s;
        cin >> s;
        vector<int>cn(n + 1);
        vector<int>t(n + 1);
        for (int j = 1; j <= n; ++j)
        {
            t[j] = (s[2 * j - 2] - 48) * 50 + (s[2 * j - 1] - 48);
            cn[t[j]]++;
        }

        int ok = 0;
        for (int j = 1; j <= n; ++j)
        {
            if (cn[j] == 1)
            {
                ok++;
            }
        }
        if (ok == n)
        {
            for (int j = 1; j <= n; ++j)
            {
                if (dis[j][t[j]] == INF)
                    g[j].push_back(t[j]);
                dis[j][t[j]] = min(dis[j][t[j]], i);
                if (dis[t[j]][j] == INF)
                    g[t[j]].push_back(j);
                dis[t[j]][j] = min(dis[t[j]][j], i);
            }

        }
        else if (ok == n - 2)
        {
            vector<int>tmp;
            int tmp2 = 0;
            for (int j = 1; j <= n; ++j)
                if (cn[t[j]] == 2)
                    tmp.push_back(j);
            for (int j = 1; j <= n; ++j)
                if (cn[j] == 0)tmp2 = j;
            if (dis[tmp[0]][tmp2] == INF)
                g[tmp[0]].push_back(tmp2);
            if (dis[tmp[1]][tmp2] == INF)
                g[tmp[1]].push_back(tmp2);
            dis[tmp[0]][tmp2] = min(dis[tmp[0]][tmp2], i);
            dis[tmp[1]][tmp2] = min(dis[tmp[1]][tmp2], i);
        }
    }
    if ((ll)n * n * n <= 1e8)
    {
        for (int k = 1; k <= n; ++k)
            for (int i = 1; i <= n; ++i)
                for (int j = 1; j <= n; ++j)
                    dis[i][j] = min(dis[i][j], max(dis[i][k], dis[k][j]));
        vector<int>ans;
        while (q--)
        {
            string s;
            cin >> s;
            int a, b, c;
            a = (s[0] - 48) * 50 + (s[1] - 48);
            b = (s[2] - 48) * 50 + (s[3] - 48);
            c = (s[4] - 48) * 50 + (s[5] - 48);
            if (dis[a][b] <= c)
                ans.push_back(1);
            else
                ans.push_back(0);
        }
        for (int i = 0; i < ans.size(); ++i)
            cout << ans[i];
        cout << endl;
    }
    else
    {
        tarjan();
        vector<array<int, 3>>e;
        for (int i = 1; i <= n; ++i)
        {
            for (int v : g[i])
            {
                e.push_back({ dis[i][v],i,v });
            }
        }
        sort(all(e));
        vector<int>fa(n + 1);
        for (int i = 1; i <= n; ++i)
        {
            fa[i] = i;
        }
        function<int(int)>find = [&](int x)
        {
            return fa[x] == x ? x : fa[x] = find(fa[x]);
        };
        vector<vector<array<int, 2>>>sg(n + 1);
        for (auto [w, u, v] : e)
        {
            if (scc[u] == scc[v])
            {
                int a = find(u);
                int b = find(v);
                if (a != b)
                {
                    fa[a] = b;
                    sg[u].push_back({ v, dis[u][v] });
                    sg[v].push_back({ u, dis[v][u] });
                }
            }
            else
            {
                sg[u].push_back({ v,w });
            }
        }
        auto dij = [&](int s)
        {
            vector<int>vis2(n + 1);
            dis[s][s] = 0;
            priority_queue<array<int, 2>, vector<array<int, 2>>, greater<array<int, 2>>>pq;
            pq.push({ 0,s });
            while (pq.size())
            {
                auto [w, u] = pq.top();
                pq.pop();
                if (vis2[u])continue;
                vis2[u] = 1;
                for (auto [v, w2] : sg[u])
                {
                    if (dis[s][v] > max(w, w2))
                    {
                        dis[s][v] = max(w, w2);
                    }
                    pq.push({ dis[s][v],v });
                }
            }
        };
        for (int i = 1; i <= n; ++i)
            dij(i);
        vector<int>ans;
        while (q--)
        {
            string s;
            cin >> s;
            int a, b, c;
            a = (s[0] - 48) * 50 + (s[1] - 48);
            b = (s[2] - 48) * 50 + (s[3] - 48);
            c = (s[4] - 48) * 50 + (s[5] - 48);
            if (dis[a][b] <= c)
                ans.push_back(1);
            else
                ans.push_back(0);
        }
        for (int i = 0; i < ans.size(); ++i)
            cout << ans[i];
        cout << endl;
    }
   
}
int main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    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: 1ms
memory: 5824kb

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: 5892kb

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: 52ms
memory: 5728kb

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: 133ms
memory: 26160kb

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: 662ms
memory: 88980kb

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: 748ms
memory: 65640kb

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: 766ms
memory: 66424kb

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: 237ms
memory: 27248kb

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: 385ms
memory: 27200kb

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: 42ms
memory: 10864kb

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: 236ms
memory: 26472kb

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: 532ms
memory: 87192kb

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: 47ms
memory: 5748kb

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: 0
Accepted
time: 57ms
memory: 5656kb

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:

ok 400 lines

Test #15:

score: 0
Accepted
time: 69ms
memory: 3868kb

input:

20
100 100 50000
1C0=0Z1Y1A1V0U1]0M0\1:0H0a0F1J141B120T06031S1F05151H0`1Q0]0^0R0A1W0E0J1X1a0G0?1@1=0S1<0O1_0X04011N1D090D0:0L0V1^0Q0[190B071G0P0217081M0N0Y1I0@1T1O1E1[0>0I1\1>1U1L1?200_131K0Z0W181;1R0K0<1P0C1011161`0;
1K0E0@1a0Y0K1V1\0403121L0a0R0D1H1Z0[0Z0S200<1I1A0W1B0?1N1W1C0P0N0Q150C080`100_0516...

output:

001101110111011111111101110111111111110111111111111111011111111111111111111111111011111111111111110111011111111111111111110111111111011111111111110111111111111111111111111111111111111111111111011011111111101011111111111111111111011110111110111111111111011111111111101101111101111111111111111111111111...

result:

ok 20 lines

Test #16:

score: -100
Wrong Answer
time: 478ms
memory: 42840kb

input:

1
2000 2000 1000000
W^P_@WECKD6O6H9X@FS00U721QG\HE7GB4@`VV9Z52AC3OWC?MU[:2K1C?J\AFMA;OHXC_4B:PUa>:8[3\O^G4P2UAIaTEH4JCW<;CMC4CKMQL=335<42`EZ1^Ja?F2NN`=BE87959S?PCD7T]HNUKMXDR28T75OAIQ0G7>Y:<CDA\<<S`8I92T>EXBWO<40B9RE9NG>:[@LLE;Y253J1N9B>5<X@3RQ;<8W42;5CE11<M14>JBUL:@BJA5WR\RJ09QA;:F]QC8H@\3WM]:>>WPF...

output:

111101111111111111111111111111111011111111101110111111111111111011111111011101111111111101011111111111101001110111011101100111100111111110111111111111110110111111101111011111111101101111111110111111111111111011111111011011111110011111011111101101111011011111111111111011111111111111111111111011111111...

result:

wrong answer 1st lines differ - expected: '111111111111111111111111111111...1111111111111111111111111111111', found: '111101111111111111111111111111...1111011111110110111101111110011'