QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#587776 | #9319. Bull Farm | fanhuaxingyu | WA | 1625ms | 89316kb | C++20 | 6.3kb | 2024-09-24 21:36:23 | 2024-09-24 21:36:24 |
Judging History
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 (tmp2!=0)
{
for (int j = 0; j < tmp.size(); ++j)
{
if (dis[tmp[j]][tmp2] == INF)
g[tmp[j]].push_back(tmp2);
dis[tmp[j]][tmp2] = min(dis[tmp[j]][tmp2], i);
}
}
}
}
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 });
for (int i = 1; i <= n; ++i)
{
if (i != s)
pq.push({ dis[s][i],i });
}
while (pq.size())
{
auto [w, u] = pq.top();
pq.pop();
for (auto [v, w2] : sg[u])
{
if (dis[s][v] > max(dis[s][u], dis[u][v]))
{
pq.push({ dis[s][v],v });
dis[s][v] = max(dis[s][u], dis[u][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: 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: 5684kb
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: 53ms
memory: 5708kb
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: 258ms
memory: 26680kb
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: 1625ms
memory: 88672kb
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: 1270ms
memory: 65512kb
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: 1258ms
memory: 66416kb
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: 338ms
memory: 25728kb
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: 549ms
memory: 28052kb
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: 52ms
memory: 11416kb
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: 363ms
memory: 25744kb
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: 1452ms
memory: 89316kb
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: 52ms
memory: 5656kb
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: 60ms
memory: 5928kb
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 43rd lines differ - expected: '111110110011110111111110010110...1110111111101101001111001001111', found: '111110010011110111111110010110...1110111101101101001001001001111'