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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#583460 | #9319. Bull Farm | starryskymeow | TL | 196ms | 18908kb | C++20 | 3.9kb | 2024-09-22 20:01:43 | 2024-09-22 20:01:43 |
Judging History
answer
#include <bits/stdc++.h>
#include <algorithm>
#include <queue>
#ifdef LOCAL
#include "debug.h"
#else
#define deb(...) 114514
#endif
using namespace std;
using LL = long long;
using pii = pair<int, int>;
using pll = pair<LL, LL>;
const int INF = 0x3f3f3f3f;
const int Mod = 1e9 + 7;
const int N = 3e5 + 10;
class DSU {
public:
std::vector<int> d;
DSU(std::size_t size) : d(size + 1) {
std::iota(d.begin(), d.end(), 0);
}
int root(int u) {
return d[u] == u ? u : d[u] = root(d[u]);
}
void bind(int u, int v) {
d[root(u)] = root(v);
}
};
void solve() {
int n, l, q;
cin >> n >> l >> q;
DSU dsu(n);
vector<vector<array<int, 2>>> gra(n + 1);
for (int i = 1; i <= l; i++) {
string s;
cin >> s;
vector<int> to(n + 1);
vector<array<int, 2>> fa(n + 1);
vector<char> vis(n + 1);
bool ok = 1;
int p = 0;
for (int j = 0; j < 2 * n; j += 2) {
int u = j / 2 + 1;
int v = (s[j] - 48) * 50 + (s[j + 1] - 48);
to[u] = v;
if (!fa[v][0])
fa[v][0] = u;
else if (!fa[v][1]) {
fa[v][1] = u;
if (!p)
p = v;
else
ok = 0;
} else
ok = 0;
}
if (!ok)
continue;
if (p) {
int empty = min_element(fa.begin() + 1, fa.end()) - fa.begin();
gra[fa[p][0]].push_back({empty, i});
gra[fa[p][1]].push_back({empty, i});
int v = fa[p][0];
while (v && !vis[v]) {
vis[v] = 1;
v = fa[v][0];
}
v = fa[p][1];
while (v && !vis[v]) {
vis[v] = 1;
v = fa[v][0];
}
}
for (int j = 1; j <= n; j++) {
if (!vis[j]) {
vis[j] = 1;
int v = to[j];
while (v != j) {
vis[v] = 1;
// if (dsu.root(j) != dsu.root(v)) {
gra[j].push_back({v, i}), gra[v].push_back({j, i});
// dsu.bind(j, v);
// }
v = to[v];
}
}
}
}
vector<vector<int>> dis(n + 1, vector<int>(n + 1, INF));
for (int i = 1; i <= n; i++) {
priority_queue<array<int, 2>, vector<array<int, 2>>, greater<>> que;
que.push({0, i});
vector<char> vis(n + 1);
dis[i][i] = 0;
while (que.size()) {
auto [dist, u] = que.top();
que.pop();
if (vis[u])
continue;
vis[u] = 1;
for (auto [v, t] : gra[u]) {
if (dis[i][v] > max(dist, t)) {
dis[i][v] = max(dist, t);
que.push({max(dist, t), v});
}
}
}
}
// deb(gra);
while (q--) {
string s;
cin >> s;
int u = (s[0] - 48) * 50 + s[1] - 48;
int v = (s[2] - 48) * 50 + s[3] - 48;
int t = (s[4] - 48) * 50 + s[5] - 48;
if (dis[u][v] <= t) {
cout << 1;
} else {
cout << 0;
}
}
cout << '\n';
}
signed main() {
#ifdef LOCAL
clock_t tttttttt = clock();
freopen("in.txt", "r", stdin);
#endif
#ifndef LOCAL
ios::sync_with_stdio(0), cin.tie(0), cout.tie(0);
#endif
//*****************************************************************
int t = 1;
cin >> t;
while (t--) solve();
//*****************************************************************
#ifdef LOCAL
cerr << "Time Used: " << fixed << setprecision(3) << (clock() - tttttttt) / (CLOCKS_PER_SEC / 1000.0) << " ms" << endl;
#endif
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 0ms
memory: 3816kb
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: 3524kb
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: 49ms
memory: 3624kb
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: 196ms
memory: 18908kb
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: -100
Time Limit Exceeded
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...