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ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#574787 | #9315. Rainbow Bracket Sequence | Carucao | WA | 1ms | 3868kb | C++20 | 2.0kb | 2024-09-19 00:33:52 | 2024-09-19 00:33:52 |
Judging History
answer
#include<bits/stdc++.h>
#define endl '\n'
#define int long long
using namespace std;
const int N=410;
const int inf=0x3f3f3f3f;
int n,m,l[N],col[N],v[N],dis[N],num,head[N],pre[N],s,t,preve[N];
bool p[N];
queue<int> q;
struct adc
{
int nex,to,cost,z;
}c[N<<4];
void ljb(int x,int y,int cost,int z)
{
c[++num].nex=head[x];
c[num].to=y;
c[num].cost=cost;
c[num].z=z;
head[x]=num;
}
void add(int x,int y,int cost,int z)
{
ljb(x,y,cost,z);
ljb(y,x,-cost,0);
}
bool spfa()
{
for(int i=1;i<=t;++i) pre[i]=0,dis[i]=inf,p[i]=0;
dis[s]=0;
q.push(s);
p[s]=1;
while(!q.empty())
{
int x=q.front();
q.pop();
p[x]=0;
for(int i=head[x];i;i=c[i].nex)
{
if(c[i].z>0)
{
int y=c[i].to,cost=c[i].cost;
if(dis[x]+cost<dis[y])
{
dis[y]=dis[x]+cost;
pre[y]=x;
preve[y]=i;
if(!p[y])
{
p[y]=1;
q.push(y);
}
}
}
}
}
return dis[t]!=inf;
}
int mincost()
{
int cost=0;
while(spfa())
{
int v=t,flow=inf;
while(pre[v])
{
int u=pre[v],i=preve[v];
flow=min(flow,c[i].z);
v=u;
}
v=t;
while(pre[v])
{
int u=pre[v],i=preve[v];
c[i].z-=flow;
c[i^1].z+=flow;
v=u;
}
cost+=dis[t]*flow;
}
return cost;
}
void work()
{
cin>>n>>m;
num=1;
for(int i=1;i<=2*n+m+2;++i) head[i]=0;
int res=0;
for(int i=1;i<2*n;++i)
{
add(i,i+1,-inf,(i+1)/2);
add(i,i+1,0,n);
res+=(i+1)/2*(-inf);
}
s=2*n+m+1,t=2*n+m+2;
add(2*n,t,0,n);
int sum=0;
for(int i=1;i<=m;++i)
{
cin>>l[i];
sum+=l[i];
add(s,2*n+i,-inf,l[i]);
add(s,2*n+i,0,n);
res+=l[i]*(-inf);
}
for(int i=1;i<=2*n;++i) cin>>col[i];
for(int i=1;i<=2*n;++i)
{
cin>>v[i];
add(2*n+col[i],i,-v[i],1);
}
if(sum>n)
{
cout<<-1<<endl;
return;
}
int ans=res-mincost();
if(ans<0) cout<<-1<<endl;
else cout<<ans<<endl;
}
signed main()
{
ios::sync_with_stdio(false);
cin.tie(0);
int T=1;
cin>>T;
for(;T;--T)
work();
return 0;
}
详细
Test #1:
score: 100
Accepted
time: 0ms
memory: 3864kb
input:
2 3 2 1 2 1 2 2 2 1 2 3 1 4 2 2 1 3 2 2 2 1 2 2 2 1 2 3 1 4 2 2 1
output:
9 -1
result:
ok 2 number(s): "9 -1"
Test #2:
score: -100
Wrong Answer
time: 1ms
memory: 3868kb
input:
50 8 6 0 2 2 0 3 1 3 5 1 1 5 3 5 2 3 2 2 1 2 2 4 6 998133227 879226371 59632864 356493387 62611196 827258251 296576565 204244054 812713672 780267148 614679390 447700005 102067050 544546349 116002772 761999375 1 1 1 1 1 343766215 374461155 3 1 2 1 1 1 1 1 1 796323508 303640854 701432076 853325162 610...
output:
4210356253 343766215 2351080746 3426965219 1532026258 435918395 1351561190 2539318868 1013080942 4656646546 97527479 4197415484 2231197660 2719131728 3983627641 4712174168 998955757 1046749330 6115214757 3920988203 2853748600 3902088946 3209069508 2566553992 5268471900 5977120748 7505501534 38288708...
result:
wrong answer 1st numbers differ - expected: '-1', found: '4210356253'