QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#330711 | #8056. Travel 2 | ucup-team1134 | AC ✓ | 665ms | 51884kb | C++23 | 2.9kb | 2024-02-17 18:00:10 | 2024-02-17 18:00:11 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return true; } return false; }
template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return true; } return false; }
#define all(x) (x).begin(),(x).end()
#define fi first
#define se second
#define mp make_pair
#define si(x) int(x.size())
const int mod=998244353,MAX=2505,INF=1<<30;
int E[MAX][MAX],ID[MAX][MAX];
int Ecn[MAX],nex[MAX],dep[MAX];
int par[MAX];
pair<int,int> ask(int u,int j){
cout<<"> "<<j<<endl;
int v,dv;cin>>v>>dv;
return mp(v,dv);
}
int main(){
int Q;cin>>Q;
for(int i=1;i<MAX;i++) nex[i]=1;
while(Q--){
int u,du;cin>>u>>du;
int st=u;
Ecn[u]=du;
dep[u]=0;
set<int> ST;
ST.insert(u);
int N=u;
while(1){
if(si(ST)==0) break;
if(ST.count(u)){
auto [v,dv]=ask(u,nex[u]);
ID[u][v]=nex[u];
E[u][nex[u]]=v;
if(nex[u]==du){
ST.erase(u);
}
if(Ecn[v]==0){
par[v]=u;
Ecn[v]=dv;
dep[v]=dep[u]+1;
ST.insert(v);
}
nex[u]++;
u=v;
du=dv;
}else{
pair<int,int> mi=mp(INF,INF);
for(int x:ST){
int a=u,b=x;
int d=0;
while(a!=b){
if(dep[a]>dep[b]) swap(a,b);
b=par[b];
d++;
}
chmin(mi,mp(d,x));
}
int to=mi.se;
while(par[to]!=u){
if(to==st) break;
to=par[to];
}
if(par[to]==u){
auto [v,dv]=ask(u,ID[u][to]);
u=v;
du=dv;
}else{
auto [v,dv]=ask(u,ID[u][par[u]]);
u=v;
du=dv;
}
}
chmax(N,u);
}
cout<<"!";
for(int i=1;i<=N;i++){
for(int j=1;j<=Ecn[i];j++){
int a=i,b=E[i][j];
if(a<b){
cout<<" "<<a<<" "<<b;
}
ID[a][b]=0;
E[i][j]=0;
}
nex[i]=1;
Ecn[i]=0;
par[i]=0;
}
cout<<endl;
string res;cin>>res;
assert(res=="Correct");
}
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 0ms
memory: 5908kb
input:
2 1 1 2 1 1 1 Correct 1 3 2 2 1 3 3 1 1 3 4 2 1 3 2 2 4 2 2 2 Correct
output:
> 1 > 1 ! 1 2 > 1 > 1 > 2 > 1 > 3 > 1 > 1 > 2 > 2 ! 1 2 1 3 1 4 2 4
result:
ok correct
Test #2:
score: 0
Accepted
time: 147ms
memory: 7692kb
input:
1000 1 9 2 7 1 9 3 9 1 9 4 9 1 9 5 8 1 9 6 9 1 9 7 7 1 9 8 8 1 9 9 8 1 9 10 6 1 9 2 7 3 9 4 9 3 9 9 8 3 9 2 7 10 6 2 7 6 9 2 7 5 8 8 8 5 8 9 8 5 8 2 7 9 8 2 7 4 9 7 7 4 9 10 6 8 8 10 6 4 9 8 8 9 8 8 8 7 7 8 8 3 9 5 8 3 9 10 6 6 9 10 6 3 9 8 8 6 9 5 8 6 9 8 8 4 9 5 8 7 7 5 8 4 9 2 7 1 9 3 9 7 7 3 9 6...
output:
> 1 > 1 > 2 > 1 > 3 > 1 > 4 > 1 > 5 > 1 > 6 > 1 > 7 > 1 > 8 > 1 > 9 > 1 > 1 > 2 > 2 > 2 > 3 > 2 > 4 > 3 > 2 > 4 > 2 > 5 > 2 > 2 > 3 > 3 > 4 > 6 > 4 > 7 > 3 > 2 > 4 > 3 > 3 > 4 > 5 > 4 > 5 > 5 > 3 > 6 > 5 > 5 > 6 > 5 > 3 > 6 > 7 > 7 > 4 > 6 > 5 > 8 > 6 > 7 > 4 > 8 > 7 > 1 > 2 > 8 > 5 > 9 > 6 > 1 > 3 ...
result:
ok correct
Test #3:
score: 0
Accepted
time: 136ms
memory: 9848kb
input:
500 1 19 2 8 1 19 3 7 1 19 4 8 1 19 5 7 1 19 6 7 1 19 7 11 1 19 8 4 1 19 9 7 1 19 10 9 1 19 11 8 1 19 12 7 1 19 13 4 1 19 14 9 1 19 15 8 1 19 16 7 1 19 17 10 1 19 18 7 1 19 19 7 1 19 20 6 1 19 2 8 17 10 2 8 3 7 20 6 3 7 11 8 3 7 4 8 3 7 2 8 14 9 19 7 14 9 17 10 6 7 5 7 7 11 5 7 6 7 17 10 14 9 6 7 11...
output:
> 1 > 1 > 2 > 1 > 3 > 1 > 4 > 1 > 5 > 1 > 6 > 1 > 7 > 1 > 8 > 1 > 9 > 1 > 10 > 1 > 11 > 1 > 12 > 1 > 13 > 1 > 14 > 1 > 15 > 1 > 16 > 1 > 17 > 1 > 18 > 1 > 19 > 1 > 1 > 2 > 2 > 3 > 2 > 2 > 3 > 2 > 4 > 2 > 5 > 4 > 2 > 2 > 3 > 3 > 2 > 2 > 2 > 3 > 3 > 4 > 4 > 4 > 3 > 2 > 4 > 2 > 2 > 3 > 5 > 3 > 2 > 4 > ...
result:
ok correct
Test #4:
score: 0
Accepted
time: 154ms
memory: 10168kb
input:
100 1 99 2 5 1 99 3 5 1 99 4 10 1 99 5 3 1 99 6 9 1 99 7 6 1 99 8 8 1 99 9 9 1 99 10 5 1 99 11 4 1 99 12 7 1 99 13 6 1 99 14 8 1 99 15 7 1 99 16 7 1 99 17 7 1 99 18 6 1 99 19 10 1 99 20 4 1 99 21 4 1 99 22 5 1 99 23 6 1 99 24 10 1 99 25 4 1 99 26 10 1 99 27 7 1 99 28 6 1 99 29 11 1 99 30 5 1 99 31 7...
output:
> 1 > 1 > 2 > 1 > 3 > 1 > 4 > 1 > 5 > 1 > 6 > 1 > 7 > 1 > 8 > 1 > 9 > 1 > 10 > 1 > 11 > 1 > 12 > 1 > 13 > 1 > 14 > 1 > 15 > 1 > 16 > 1 > 17 > 1 > 18 > 1 > 19 > 1 > 20 > 1 > 21 > 1 > 22 > 1 > 23 > 1 > 24 > 1 > 25 > 1 > 26 > 1 > 27 > 1 > 28 > 1 > 29 > 1 > 30 > 1 > 31 > 1 > 32 > 1 > 33 > 1 > 34 > 1 > 3...
result:
ok correct
Test #5:
score: 0
Accepted
time: 665ms
memory: 26172kb
input:
10 1 999 2 8 1 999 3 9 1 999 4 8 1 999 5 7 1 999 6 7 1 999 7 4 1 999 8 4 1 999 9 13 1 999 10 11 1 999 11 7 1 999 12 7 1 999 13 5 1 999 14 5 1 999 15 8 1 999 16 9 1 999 17 5 1 999 18 5 1 999 19 8 1 999 20 4 1 999 21 8 1 999 22 8 1 999 23 6 1 999 24 8 1 999 25 2 1 999 26 9 1 999 27 5 1 999 28 6 1 999 ...
output:
> 1 > 1 > 2 > 1 > 3 > 1 > 4 > 1 > 5 > 1 > 6 > 1 > 7 > 1 > 8 > 1 > 9 > 1 > 10 > 1 > 11 > 1 > 12 > 1 > 13 > 1 > 14 > 1 > 15 > 1 > 16 > 1 > 17 > 1 > 18 > 1 > 19 > 1 > 20 > 1 > 21 > 1 > 22 > 1 > 23 > 1 > 24 > 1 > 25 > 1 > 26 > 1 > 27 > 1 > 28 > 1 > 29 > 1 > 30 > 1 > 31 > 1 > 32 > 1 > 33 > 1 > 34 > 1 > 3...
result:
ok correct
Test #6:
score: 0
Accepted
time: 336ms
memory: 27076kb
input:
4 1 999 2 24 1 999 3 20 1 999 4 17 1 999 5 29 1 999 6 21 1 999 7 21 1 999 8 19 1 999 9 21 1 999 10 14 1 999 11 12 1 999 12 17 1 999 13 23 1 999 14 23 1 999 15 16 1 999 16 14 1 999 17 16 1 999 18 15 1 999 19 16 1 999 20 19 1 999 21 16 1 999 22 16 1 999 23 25 1 999 24 23 1 999 25 22 1 999 26 16 1 999 ...
output:
> 1 > 1 > 2 > 1 > 3 > 1 > 4 > 1 > 5 > 1 > 6 > 1 > 7 > 1 > 8 > 1 > 9 > 1 > 10 > 1 > 11 > 1 > 12 > 1 > 13 > 1 > 14 > 1 > 15 > 1 > 16 > 1 > 17 > 1 > 18 > 1 > 19 > 1 > 20 > 1 > 21 > 1 > 22 > 1 > 23 > 1 > 24 > 1 > 25 > 1 > 26 > 1 > 27 > 1 > 28 > 1 > 29 > 1 > 30 > 1 > 31 > 1 > 32 > 1 > 33 > 1 > 34 > 1 > 3...
result:
ok correct
Test #7:
score: 0
Accepted
time: 135ms
memory: 9892kb
input:
4 1 199 2 106 1 199 3 95 1 199 4 102 1 199 5 103 1 199 6 103 1 199 7 110 1 199 8 109 1 199 9 104 1 199 10 98 1 199 11 85 1 199 12 94 1 199 13 86 1 199 14 105 1 199 15 102 1 199 16 96 1 199 17 97 1 199 18 94 1 199 19 112 1 199 20 108 1 199 21 116 1 199 22 109 1 199 23 104 1 199 24 96 1 199 25 92 1 19...
output:
> 1 > 1 > 2 > 1 > 3 > 1 > 4 > 1 > 5 > 1 > 6 > 1 > 7 > 1 > 8 > 1 > 9 > 1 > 10 > 1 > 11 > 1 > 12 > 1 > 13 > 1 > 14 > 1 > 15 > 1 > 16 > 1 > 17 > 1 > 18 > 1 > 19 > 1 > 20 > 1 > 21 > 1 > 22 > 1 > 23 > 1 > 24 > 1 > 25 > 1 > 26 > 1 > 27 > 1 > 28 > 1 > 29 > 1 > 30 > 1 > 31 > 1 > 32 > 1 > 33 > 1 > 34 > 1 > 3...
result:
ok correct
Test #8:
score: 0
Accepted
time: 94ms
memory: 51884kb
input:
4 1 140 2 140 1 140 3 140 1 140 4 140 1 140 5 140 1 140 6 140 1 140 7 140 1 140 8 140 1 140 9 140 1 140 10 140 1 140 11 140 1 140 12 140 1 140 13 140 1 140 14 140 1 140 15 140 1 140 16 140 1 140 17 140 1 140 18 140 1 140 19 140 1 140 20 140 1 140 21 140 1 140 22 140 1 140 23 140 1 140 24 140 1 140 2...
output:
> 1 > 1 > 2 > 1 > 3 > 1 > 4 > 1 > 5 > 1 > 6 > 1 > 7 > 1 > 8 > 1 > 9 > 1 > 10 > 1 > 11 > 1 > 12 > 1 > 13 > 1 > 14 > 1 > 15 > 1 > 16 > 1 > 17 > 1 > 18 > 1 > 19 > 1 > 20 > 1 > 21 > 1 > 22 > 1 > 23 > 1 > 24 > 1 > 25 > 1 > 26 > 1 > 27 > 1 > 28 > 1 > 29 > 1 > 30 > 1 > 31 > 1 > 32 > 1 > 33 > 1 > 34 > 1 > 3...
result:
ok correct
Test #9:
score: 0
Accepted
time: 117ms
memory: 51744kb
input:
4 1 2498 2 2 1 2498 3 2 1 2498 4 2 1 2498 5 2 1 2498 6 2 1 2498 7 2 1 2498 8 2 1 2498 9 2 1 2498 10 2 1 2498 11 2 1 2498 12 2 1 2498 13 2 1 2498 14 2 1 2498 15 2 1 2498 16 2 1 2498 17 2 1 2498 18 2 1 2498 19 2 1 2498 20 2 1 2498 21 2 1 2498 22 2 1 2498 23 2 1 2498 24 2 1 2498 25 2 1 2498 26 2 1 2498...
output:
> 1 > 1 > 2 > 1 > 3 > 1 > 4 > 1 > 5 > 1 > 6 > 1 > 7 > 1 > 8 > 1 > 9 > 1 > 10 > 1 > 11 > 1 > 12 > 1 > 13 > 1 > 14 > 1 > 15 > 1 > 16 > 1 > 17 > 1 > 18 > 1 > 19 > 1 > 20 > 1 > 21 > 1 > 22 > 1 > 23 > 1 > 24 > 1 > 25 > 1 > 26 > 1 > 27 > 1 > 28 > 1 > 29 > 1 > 30 > 1 > 31 > 1 > 32 > 1 > 33 > 1 > 34 > 1 > 3...
result:
ok correct
Extra Test:
score: 0
Extra Test Passed