QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#578610 | #9319. Bull Farm | xixixi | WA | 233ms | 3800kb | C++14 | 1.6kb | 2024-09-20 20:23:14 | 2024-09-20 20:23:14 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
const int mxn=2e3+8;
int T,n,m1,m2,tot;
int h[mxn],temp[mxn],dp[mxn],vis[mxn];
struct Star{
int to,w,nx;
}star[mxn*mxn];
void add(int x,int y,int w){
star[++tot].nx=h[x];
star[tot].to=y;
star[tot].w=w;
h[x]=tot;}
bool bfs(int st,int ed,int lim){
memset(vis,0,sizeof vis);
queue<int>q;
q.push(st);vis[st]=1;
while(q.size()){
int pre=q.front();q.pop();
for(int i=h[pre];~i;i=star[i].nx){
auto pto=star[i];
if(pto.w>lim||vis[pto.to])continue;
vis[pto.to]=1;q.push(pto.to);
if(pto.w==ed)return 1;
}
}
return vis[ed];
}
signed main(){
ios::sync_with_stdio(0),cin.tie(0),cout.tie(0);
cin >> T;
while(T--){
cin >> n >> m1 >> m2 ;
memset(h,-1,sizeof h);
int from=0,to=0;tot=0;
for(int i=1;i<=m1;i++){
int sum = 0 ;
string s;cin >> s ;
for(int j=0;j<n;j++){
temp[j+1]=(s[j*2]-'0')*50+(s[j*2+1]-'0');dp[temp[j+1]]+=1;}
for(int j=1;j<=n;j++){
if(dp[j]==0)to=j;
if(dp[j]==2)from=j;
if(dp[j]){sum+=1,dp[j]=0;}}
if(sum==n){
for(int j=1;j<=n;j++)
add(j,temp[j],i);}
else if(sum==n-1)
for(int j=1;j<=n;j++)
if(temp[j]==from)add(j,to,i);
}
for(int i=1;i<=m2;i++){
string s;cin >> s ;
int from,to,lim;
from=(s[0]-'0')*50+(s[1]-'0');
to=(s[2]-'0')*50+(s[3]-'0');
lim=(s[4]-'0')*50+(s[5]-'0');
cout << bfs(from,to,lim);
}
cout << '\n';
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3800kb
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: 3632kb
input:
1 3 3 6 020202 030301 030201 020102 030203 010201 010303 020303 010202
output:
010101
result:
ok single line: '010101'
Test #3:
score: -100
Wrong Answer
time: 233ms
memory: 3648kb
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:
011110001101101111111111111111111101111111110111011110110110111011010111111111111111111101111111111110111111111111111111111101111111111110111111111111111111110001100111111111111111111111111111101111111111111111111111111111111111111111011011110110111110111111110111111100111111101110111111111101111110...
result:
wrong answer 1st lines differ - expected: '011110001101101111111111111111...1111111111111111101111111111111', found: '011110001101101111111111111111...1111111111111111101111111111111'