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QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #592892 | #7736. Red Black Tree | daduoli# | WA | 134ms | 27080kb | C++23 | 1.5kb | 2024-09-27 09:33:18 | 2024-09-27 09:33:19 |
Judging History
answer
#include<bits/stdc++.h>
#define psb push_back
using namespace std;
typedef long long LL;
inline int read(){
char ch=getchar();
while(!isdigit(ch) && ch!='-') ch=getchar();
int x=0,ff=1; if(ch=='-') ff=-1,ch=getchar();
while(isdigit(ch)) x=(x<<3) + (x<<1) + (ch^48),ch=getchar();
return x*ff;
}
const int N=1e5+5,inf=1e9;
int n,fa[N],F[N],vd[N],zl[N],zr[N],b[N]; vector<int> e[N],f[N]; char ch[N];
void dfs(int u){
vd[u]=n; f[u].clear();
for(int v:e[u]) {
dfs(v),vd[u]=min(vd[u],vd[v]+1);
if(ch[u]=='0') ++zr[v];
else ++zl[v];
}
if(!e[u].size()) {
vd[u]=1; zl[u]=zr[u]=0; F[u]=0;
if(ch[u]=='0') f[u].psb(0),f[u].psb(inf);
else f[u].psb(inf),f[u].psb(0);
}
else if((int)e[u].size()==1){
int v=e[u][0]; swap(f[u],f[v]);
zl[u]=zl[v]; zr[u]=zr[v]; F[u]=F[v];
} else{
f[u].resize(vd[u]+1); F[u]=inf;
for(int v:e[u]){
int tt=-1;
for(int i=1;i<=zl[v];i++) b[++tt]=inf;
for(int x:f[v]) b[++tt]=x;
for(int i=1;i<=zr[v];i++) b[++tt]=inf;
for(int i=1;i<=tt;i++) b[i]=min(b[i],b[i-1]+1);
for(int i=tt-1;i>=0;i--) b[i]=min(b[i],b[i+1]+1);
for(int i=0;i<=vd[u];i++) f[u][i]=min(f[u][i]+b[i],inf);
} zl[u]=zr[u]=0; for(int i=0;i<=vd[u];i++) F[u]=min(F[u],f[u][i]);
}
}
void vmain(){
n=read(); scanf("%s",ch+1); for(int i=1;i<=n;i++) e[i].clear();
for(int i=2;i<=n;i++) fa[i]=read(),e[fa[i]].psb(i);
dfs(1);
for(int i=1;i<=n;i++) printf("%d ",F[i]);
puts("");
}
int main(){
int T=read(); while(T--) vmain();
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 1ms
memory: 5788kb
input:
2 9 101011110 1 1 3 3 3 6 2 2 4 1011 1 1 3
output:
4 1 2 0 0 0 0 0 0 2 0 0 0
result:
ok 2 lines
Test #2:
score: -100
Wrong Answer
time: 134ms
memory: 27080kb
input:
6107 12 000000001000 1 2 3 2 5 4 4 7 3 8 11 19 1100111101111011110 1 2 1 1 4 5 2 4 3 2 2 7 10 2 11 3 15 5 7 0111110 1 1 2 2 1 5 3 000 1 1 7 1000011 1 2 3 3 5 4 7 0001001 1 1 1 3 5 3 8 00111000 1 1 3 2 5 2 7 11 11111110111 1 1 1 4 5 4 5 2 5 1 15 110101101000010 1 2 3 2 1 5 2 5 6 5 8 7 9 14 10 0101000...
output:
1 1 1 1 0 0 0 0 0 0 0 0 6 2 0 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 1 0 0 0 0 2 1 0 0 0 0 0 0 4 0 0 2 1 0 0 0 0 0 0 4 3 0 0 2 0 0 0 0 0 0 0 0 0 0 2 0 1 0 0 0 0 0 0 0 6 5 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 1 1 0 0 0 5 1 0 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0...
result:
wrong answer 78th lines differ - expected: '6 0 0 3 2 0 0 0 0 0 0 0 0 0 0 0', found: '5 0 0 3 2 0 0 0 0 0 0 0 0 0 0 0 '