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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#382800 | #7769. Axium Crisis | yyyyxh | 0 | 985ms | 61456kb | C++14 | 1.8kb | 2024-04-08 19:15:52 | 2024-04-08 19:15:53 |
Judging History
answer
#include <cstdio>
#include <vector>
using namespace std;
int read(){
char c=getchar();int x=0;
while(c<48||c>57) c=getchar();
do x=x*10+(c^48),c=getchar();
while(c>=48&&c<=57);
return x;
}
const int N=20,T=2000003;
typedef pair<int,int> pii;
int n,rt,MskLim;
int hd[N],ver[N<<1],nxt[N<<1],val[N<<1],tot;
void add(int u,int v,int w){
nxt[++tot]=hd[u];hd[u]=tot;ver[tot]=v;val[tot]=w;
}
int tr[T][2],tnum;
int w[N];
struct path{
int u,v,msk;
path(int U,int V,int Msk):u(U),v(V),msk(Msk){}
};
vector<path> vec[T];
void dfs(int u,int fa,int msk,int p){
if(fa) vec[p].emplace_back(rt,u,msk);
for(int i=hd[u];i;i=nxt[i]){
int v=ver[i];
if(v==fa) continue;
int id=(i-1)>>1;
if(val[i]!=1){
if(!tr[p][0]) tr[p][0]=++tnum;
dfs(v,u,msk|(1<<id),tr[p][0]);
}
if(val[i]!=0){
if(!tr[p][1]) tr[p][1]=++tnum;
dfs(v,u,msk|(1<<id),tr[p][1]);
}
}
}
int f[N][1<<17];
inline void chmx(int &x,int v){(x<v)&&(x=v);}
void trav(int p,int d){
if(!p) return;
for(auto [u,v,msk]:vec[p])
for(int i=msk;i<MskLim;i=(i+1)|msk)
for(int j=0;j<n;++j) chmx(f[d][i],f[j][i^msk]+d-j);
trav(tr[p][0],d+1);
trav(tr[p][1],d+1);
if(d){
for(int i=0;i<MskLim;++i){chmx(f[d-1][i],f[d][i]);f[d][i]=0;}
}
}
void solve(){
n=read();tnum=1;MskLim=1<<(n-1);
for(int i=1;i<n;++i){
int u=read()+1,v=read()+1;w[i]=read();
add(u,v,w[i]);add(v,u,w[i]);
}
for(rt=1;rt<=n;++rt) dfs(rt,0,0,1);
for(int i=0;i<n;++i)
for(int s=0;s<MskLim;++s) f[i][s]=!i;
trav(1,0);
puts("0");
printf("%d\n",f[0][MskLim-1]);
for(int i=1;i<=n;++i) hd[i]=0;
while(tot) ver[tot]=nxt[tot]=val[tot]=0,--tot;
for(int i=1;i<=tnum;++i) tr[i][0]=tr[i][1]=0,vec[i].clear();
}
int main(){
int tc=read();read();
while(tc--) solve();
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Subtask #1:
score: 0
Wrong Answer
Test #1:
score: 0
Wrong Answer
time: 7ms
memory: 55016kb
input:
1000 0 4 0 2 0 2 3 0 2 1 0 4 3 2 1 0 2 1 1 2 2 4 0 2 2 0 1 0 3 0 0 4 1 2 1 3 2 0 2 0 1 4 0 2 0 0 3 0 2 1 0 4 0 2 1 0 3 1 0 1 1 4 3 1 0 2 1 2 3 0 2 4 3 1 1 3 0 1 2 3 0 4 1 0 0 2 0 2 2 3 2 4 1 2 0 3 0 0 2 3 2 3 2 1 0 0 2 1 4 3 0 1 1 2 1 2 3 0 4 2 1 0 3 0 1 1 0 1 4 3 2 1 3 1 1 0 1 1 4 1 2 1 1 3 0 3 0 1...
output:
0 3 0 4 0 4 0 4 0 4 0 3 0 4 0 4 0 4 0 4 0 3 0 4 0 4 0 4 0 4 0 4 0 4 0 4 0 3 0 4 0 4 0 3 0 4 0 4 0 4 0 3 0 4 0 4 0 4 0 4 0 3 0 4 0 4 0 3 0 4 0 4 0 4 0 4 0 4 0 4 0 4 0 3 0 4 0 4 0 3 0 4 0 4 0 4 0 4 0 3 0 4 0 4 0 4 0 4 0 4 0 4 0 4 0 4 0 4 0 4 0 4 0 4 0 4 0 4 0 4 0 4 0 3 0 3 0 4 0 3 0 4 0 4 0 3 0 4 0 4 ...
result:
wrong answer Integer 0 violates the range [1, 4]
Subtask #2:
score: 0
Wrong Answer
Test #3:
score: 0
Wrong Answer
time: 4ms
memory: 57060kb
input:
3000 3 4 0 1 1 0 3 1 0 2 0 4 3 2 0 0 1 1 1 2 0 4 1 0 0 2 3 1 3 1 0 4 2 1 0 2 0 1 3 0 0 4 2 3 1 3 0 1 2 1 0 4 2 3 1 2 1 1 2 0 1 4 0 2 0 1 0 0 3 0 0 4 3 1 1 0 2 0 2 3 0 6 4 0 0 3 1 1 2 3 0 0 5 1 1 5 0 4 2 3 1 3 0 0 3 1 1 4 0 3 0 1 2 0 0 2 1 4 0 2 1 3 1 0 2 1 1 4 2 0 0 2 3 1 1 3 0 6 3 1 0 3 4 1 4 0 1 2...
output:
0 4 0 4 0 4 0 4 0 4 0 3 0 3 0 4 0 6 0 4 0 4 0 4 0 4 0 5 0 4 0 4 0 3 0 3 0 4 0 5 0 3 0 3 0 4 0 4 0 5 0 4 0 3 0 4 0 4 0 4 0 3 0 3 0 5 0 4 0 4 0 4 0 4 0 3 0 3 0 4 0 4 0 4 0 5 0 4 0 4 0 4 0 4 0 3 0 4 0 6 0 4 0 4 0 6 0 4 0 4 0 4 0 4 0 4 0 3 0 5 0 4 0 4 0 4 0 3 0 4 0 6 0 4 0 3 0 3 0 4 0 4 0 4 0 4 0 6 0 4 ...
result:
wrong answer Integer 0 violates the range [1, 4]
Subtask #3:
score: 0
Skipped
Dependency #1:
0%
Subtask #4:
score: 0
Skipped
Dependency #2:
0%
Subtask #5:
score: 0
Skipped
Dependency #3:
0%
Subtask #6:
score: 0
Skipped
Dependency #4:
0%
Subtask #7:
score: 0
Wrong Answer
Test #13:
score: 0
Wrong Answer
time: 985ms
memory: 61456kb
input:
3000 1 11 2 5 0 10 2 0 6 2 0 2 8 0 0 2 0 2 1 0 2 4 0 2 9 0 2 3 0 7 2 0 11 7 8 0 6 4 0 1 6 0 2 8 0 8 0 0 6 3 0 9 5 0 5 8 0 1 2 0 9 10 0 8 1 4 0 2 3 0 6 5 0 6 7 0 2 4 0 7 3 0 1 0 0 8 4 0 0 0 5 0 7 2 0 0 2 0 0 6 0 0 1 0 0 3 0 11 5 1 0 7 2 0 9 2 0 4 9 0 0 2 0 8 5 0 0 6 0 3 6 0 4 10 0 1 7 0 7 6 2 0 0 5 0...
output:
0 3 0 8 0 8 0 4 0 8 0 7 0 5 0 7 0 11 0 4 0 8 0 4 0 8 0 10 0 5 0 6 0 7 0 5 0 3 0 11 0 6 0 9 0 6 0 6 0 8 0 8 0 5 0 6 0 4 0 5 0 11 0 4 0 5 0 9 0 6 0 9 0 8 0 8 0 4 0 4 0 8 0 11 0 8 0 6 0 4 0 8 0 7 0 4 0 11 0 7 0 7 0 6 0 7 0 8 0 8 0 8 0 6 0 4 0 8 0 8 0 7 0 7 0 8 0 11 0 8 0 5 0 8 0 4 0 7 0 5 0 7 0 7 0 4 0...
result:
wrong answer Integer 0 violates the range [1, 11]
Subtask #8:
score: 0
Time Limit Exceeded
Test #14:
score: 0
Time Limit Exceeded
input:
3000 2 8 4 7 2 4 3 2 3 2 2 4 5 2 1 4 2 6 4 2 0 1 2 8 1 5 2 0 7 2 3 2 2 3 1 2 5 7 2 4 0 2 6 4 2 8 1 3 2 5 3 2 7 6 2 2 6 2 0 7 2 4 6 2 0 5 2 8 5 7 2 2 6 2 1 6 2 4 5 2 4 0 2 0 1 2 7 3 2 11 2 7 2 0 9 2 8 9 2 10 7 2 6 9 2 9 3 2 4 10 2 7 5 2 7 9 2 1 9 2 8 2 6 2 1 5 2 4 1 2 1 3 2 6 1 2 0 1 2 6 7 2 14 2 6 2...
output:
0 7 0 8 0 8 0 8 0 9 0 6 0 7 0 6 0 6 0 10 0 8 0 7 0 6 0 6 0 9 0 6 0 7 0 8 0 11 0 8 0 9 0 8 0 8 0 8 0 6 0 7 0 7 0 11 0 6 0 5 0 7 0 8 0 8 0 7 0 6 0 9 0 7 0 7 0 11 0 8 0 7 0 8 0 6 0 7 0 10 0 6 0 8 0 6 0 7 0 7 0 7 0 7 0 8 0 7 0 9 0 11 0 8 0 7 0 7 0 7 0 11 0 8 0 8 0 7 0 6 0 6 0 7 0 8 0 7 0 8 0 7 0 6 0 7 0...
result:
Subtask #9:
score: 0
Skipped
Dependency #6:
0%
Subtask #10:
score: 0
Skipped
Dependency #5:
0%