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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#134805 | #4162. 所驼门王的宝藏 | osky123456 | 80 | 116ms | 128288kb | C++14 | 2.6kb | 2023-08-04 23:29:51 | 2023-08-04 23:29:53 |
Judging History
answer
#include<iostream>
#include<cstdio>
#include<cstring>
#include<cstdlib>
#include<set>
#include<ctime>
#include<vector>
#include<queue>
#include<algorithm>
#include<map>
#define inf 1000000000
#define ll long long
using namespace std;
int read()
{
int x=0,f=1;char ch=getchar();
while(ch<'0'||ch>'9'){if(ch=='-')f=-1;ch=getchar();}
while(ch>='0'&&ch<='9'){x=x*10+ch-'0';ch=getchar();}
return x*f;
}
int xx[8]={0,0,1,1,1,-1,-1,-1},yy[8]={1,-1,0,1,-1,0,1,-1};
int K,n,m,cnt,ind,scc,top,ans;
int last[100005],last2[100005];
int x[100005],y[100005],opt[100005];
int bl[100005],low[100005],dfn[100005],num[100005],q[100005];
int deep[100005];
bool mark[100005];
vector<int> a[1000005],b[1000005];
map<int,int> mp[1000005];
struct edge{
int to,next;
}e[1000005],ed[1000005];
void insert(int u,int v)
{
if(u==v)return;
e[++cnt].to=v;e[cnt].next=last[u];last[u]=cnt;
}
void insert2(int u,int v)
{
ed[++cnt].to=v;ed[cnt].next=last2[u];last2[u]=cnt;
}
void build()
{
for(int i=1;i<=n;i++)
{
int x=0,t=a[i].size();
for(int j=0;j<t;j++)
if(opt[a[i][j]]==1){x=a[i][j];break;}
for(int j=0;j<t;j++)
{
insert(x,a[i][j]);
if(opt[a[i][j]]==1)insert(a[i][j],x);
}
}
for(int i=1;i<=m;i++)
{
int x=0,t=b[i].size();
for(int j=0;j<t;j++)
if(opt[b[i][j]]==2){x=b[i][j];break;}
for(int j=0;j<t;j++)
{
insert(x,b[i][j]);
if(opt[b[i][j]]==2)insert(b[i][j],x);
}
}
for(int i=1;i<=K;i++)
if(opt[i]==3)
for(int k=0;k<8;k++)
{
int t=mp[x[i]+xx[k]][y[i]+yy[k]];
if(t)insert(i,t);
}
}
void tarjan(int x)
{
low[x]=dfn[x]=++ind;
q[++top]=x;mark[x]=1;
for(int i=last[x];i;i=e[i].next)
if(!dfn[e[i].to])
{
tarjan(e[i].to);
low[x]=min(low[x],low[e[i].to]);
}
else if(mark[e[i].to])
low[x]=min(low[x],dfn[e[i].to]);
if(low[x]==dfn[x])
{
int now=0;scc++;
while(now!=x)
{
now=q[top--];mark[now]=0;
bl[now]=scc;num[scc]++;
}
}
}
void rebuild()
{
cnt=0;
for(int x=1;x<=K;x++)
{
for(int i=last[x];i;i=e[i].next)
if(bl[x]!=bl[e[i].to])
insert2(bl[x],bl[e[i].to]);
}
}
void dp(int x)
{
mark[x]=1;
for(int i=last2[x];i;i=ed[i].next)
{
if(!mark[ed[i].to])dp(ed[i].to);
deep[x]=max(deep[x],deep[ed[i].to]);
}
deep[x]+=num[x];
ans=max(deep[x],ans);
}
int main()
{
K=read();n=read();m=read();
for(int i=1;i<=K;i++)
{
x[i]=read(),y[i]=read(),opt[i]=read();
mp[x[i]][y[i]]=i;
a[x[i]].push_back(i);
b[y[i]].push_back(i);
}
build();
for(int i=1;i<=K;i++)
if(!dfn[i])tarjan(i);
rebuild();
for(int i=1;i<=scc;i++)
if(!mark[i])dp(i);
printf("%d\n",ans);
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 10
Accepted
time: 4ms
memory: 99964kb
input:
16 20 20 5 6 2 16 6 2 11 6 3 12 7 1 12 12 2 4 6 1 1 12 2 2 12 3 4 10 1 3 12 1 3 2 3 10 12 3 4 12 3 16 12 3 3 1 1 3 14 1
output:
12
result:
ok single line: '12'
Test #2:
score: 10
Accepted
time: 8ms
memory: 102032kb
input:
300 1000 1000 961 867 3 961 868 1 961 189 1 961 68 3 961 140 2 29 140 1 961 218 3 961 217 1 961 3 1 70 140 1 961 135 2 961 7 3 103 135 3 29 33 1 163 140 1 960 868 2 961 181 1 247 140 1 961 69 2 247 215 3 29 213 3 29 55 1 163 290 3 131 140 1 29 186 3 70 75 3 961 133 1 29 68 3 163 22 1 29 279 3 960 6 ...
output:
186
result:
ok single line: '186'
Test #3:
score: 10
Accepted
time: 11ms
memory: 104100kb
input:
500 100000 100000 15043 25566 3 15044 25566 1 15042 25567 3 15043 25565 2 15042 25566 3 15043 25568 2 15042 25568 3 15041 25565 1 15044 104 2 168 25565 3 15044 491 1 15044 81 3 168 25564 1 235 104 3 15042 25565 1 15041 25566 2 15044 469 3 15044 25567 1 15044 330 1 175 25566 3 146 104 3 15043 25567 3...
output:
275
result:
ok single line: '275'
Test #4:
score: 10
Accepted
time: 12ms
memory: 104468kb
input:
2500 5000 5000 3360 701 3 3361 700 3 3359 701 3 3359 700 3 3360 700 1 3361 699 2 3358 701 1 3358 700 3 3358 699 1 2447 699 2 3358 1086 3 3358 1615 1 3362 700 1 3362 1465 1 3362 1798 2 3362 699 3 3357 1087 3 3362 1261 3 3360 702 3 3361 701 2 3359 703 3 499 699 2 3358 702 3 3358 1087 3 3361 698 3 210 ...
output:
1346
result:
ok single line: '1346'
Test #5:
score: 10
Accepted
time: 78ms
memory: 120776kb
input:
50000 5000 5000 3607 4830 3 4313 4830 1 4626 4830 3 1386 4830 3 4641 4830 1 1512 4830 3 402 4830 2 2934 4830 2 401 4831 1 4626 4584 1 4386 4831 3 4641 2551 1 3557 4830 1 2491 4830 3 2334 4584 3 3556 4831 3 4387 4831 3 3607 3496 3 4626 4601 3 4626 2217 3 3556 4830 3 3556 4786 3 4364 3496 3 402 1201 2...
output:
10397
result:
ok single line: '10397'
Test #6:
score: 10
Accepted
time: 68ms
memory: 117032kb
input:
50000 1000000 1000000 20363 13775 3 10221 13775 3 10221 13969 3 10221 29039 3 10221 27851 3 654 13775 3 10649 29039 3 10221 22361 3 10649 8092 3 10648 8092 3 10649 24920 3 10221 25255 3 10220 25254 3 10221 17082 3 10222 13968 3 32129 27851 3 10221 23924 3 4819 29039 3 10222 13776 3 654 27930 3 10220...
output:
3256
result:
ok single line: '3256'
Test #7:
score: 10
Accepted
time: 116ms
memory: 128288kb
input:
80000 1000000 1000000 29977 11241 3 29977 15584 3 29977 375 3 29977 3093 3 29977 31245 2 25192 15584 3 29978 31246 1 29977 23943 2 29431 31245 3 25192 2098 3 29976 374 1 7181 375 3 29977 22345 3 29979 31246 3 5598 31245 3 29977 17843 3 29431 31246 2 29976 31244 3 17885 374 3 29976 31061 3 29977 3124...
output:
18588
result:
ok single line: '18588'
Test #8:
score: 10
Accepted
time: 52ms
memory: 114060kb
input:
100000 1000000 1000000 19362 10998 2 17887 10998 2 17887 691 2 17887 18793 2 19362 22537 1 17887 18792 1 19362 23192 2 19362 9406 2 19362 10999 1 17887 21103 1 19362 2323 2 17887 1781 2 19362 12326 1 7225 23192 1 8952 1781 1 17887 8534 1 19362 2725 2 17887 6665 1 17887 14381 1 19362 26932 1 22259 18...
output:
77333
result:
ok single line: '77333'
Test #9:
score: 0
Memory Limit Exceeded
input:
100000 1000000 1000000 14954 14897 3 14954 23720 2 28995 14897 2 26335 14897 3 26334 14897 2 21984 14897 3 26334 13037 3 14955 14896 3 26333 13037 2 26334 31550 2 26333 14897 3 26335 18761 3 26333 14369 3 26333 16092 3 28994 14898 3 26334 18762 3 21983 14898 3 26333 31709 1 26335 14898 3 14954 8301 ...
output:
result:
Test #10:
score: 0
Memory Limit Exceeded
input:
100000 1000000 1000000 10588 4708 3 10588 28735 3 10588 28736 3 10587 4709 3 10588 20418 3 10586 4709 3 10586 17297 2 10586 26967 3 10587 17296 3 7718 17297 3 7576 17296 3 7718 3553 3 25009 17296 3 25008 17297 3 7719 3552 2 10587 14985 3 10586 24976 3 10588 16895 2 10588 11593 1 10587 14986 3 6611 3...