QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#596663 | #9319. Bull Farm | huan_yp | TL | 91ms | 25096kb | C++14 | 2.0kb | 2024-09-28 16:13:12 | 2024-09-28 16:13:16 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
const int N=2e3+10, M=1e6+10;
int fa[N], t[N][N];
int ans[M];
char ch[M];
bitset<2048> vis[N];
struct query{
int a, b, c, rk;
bool operator <(const query &x){
return c<x.c;
}
}a[M];
int decode(char *ch){
return (ch[0]-48)*50+(ch[1]-48);
}
int find(int u){
return fa[u]==u?u:fa[u]=find(fa[u]);
}
int main(){
int T;
cin>>T;
while(T--){
int n, l, q;
cin>>n>>l>>q;
auto merge=[&](int u, int v){
cerr << "M:" << u << ' ' << v << '\n';
u=find(u), v=find(v);
if(u==v)return ;
fa[v]=u;vis[u]|=vis[v];
for(int i=1;i<=n;i++)vis[i][u]=vis[i][u]|vis[i][v];
};
auto add_edge=[&](int u, int v){
cerr << "A:" << u << ' ' << v << '\n';
u=find(u), v=find(v);
if(u==v)return ;
vis[u]|=vis[v];
};
for(int i=1;i<=n;i++)fa[i]=i, vis[i].reset(), vis[i][i]=1;
for(int i=1;i<=l;i++){
scanf("%s", ch);
for(int j=1;j<=n;j++)
t[i][j]=decode(ch+(j-1)*2);
}
for(int i=1;i<=q;i++){
scanf("%s", ch);
a[i]=query({decode(ch), decode(ch+2), decode(ch+4), i});
}
int cur=1;
sort(a+1,a+q+1);
for(int i=1;i<=l;i++){
while(a[cur].c<i&&cur<=q)ans[a[cur++].rk]=vis[find(a[cur].a)][find(a[cur].b)];
int cnt[N], p[N];memset(cnt, 0, sizeof(cnt)), memset(p, 0, sizeof(p));
int empty_point=-1;
for(int j=1;j<=n;j++)cnt[t[i][j]]++;
for(int j=1;j<=n;j++)if(cnt[j]==0){
if(empty_point==-1)empty_point=j;
else empty_point=-2;
}
if(empty_point==-2)continue;
if(empty_point==-1){
for(int j=1;j<=n;j++)if(!p[j]){
// cerr<<'(';
int last=j;
p[last]=1;
// cerr<<last<<',';
while(!p[t[i][last]]){
merge(last, t[i][last]);
last=t[i][last], p[last]=1;
// cerr<<last<<',';
}
// cerr<<')';
}
// cerr<<'\n';
}
else{
for(int j=1;j<=n;j++)if(cnt[t[i][j]]==2)add_edge(j, empty_point);
}
}
while(cur<=q)ans[a[cur++].rk]=vis[find(a[cur].a)][find(a[cur].b)];
for(int i=1;i<=q;i++)cout<<ans[i];cout<<endl;
}
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 1ms
memory: 7800kb
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: 9888kb
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: 91ms
memory: 9928kb
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: 90ms
memory: 25096kb
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...