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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#569971 | #9315. Rainbow Bracket Sequence | Vegetable_Dog | WA | 1ms | 3832kb | C++23 | 3.1kb | 2024-09-17 12:59:31 | 2024-09-17 12:59:31 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
#define int ll
#define rep(i,a,b) for(int i=a;i<(b);i++)
#define Rep(i,a,b) for(int i=a;i>=(b);i--)
#define pb push_back
#define mid(l,r) (l+(r-l)/2)
#define MID(l,r) (l+(r-l+1)/2)
#define MEM(a,x) memset(a,x,sizeof(a))
#define all(x) (x).begin(),(x).end()
#define rall(x) (x).rbegin(),(x).rend()
#define fi first
#define se second
#define lson(k) (k<<1)
#define rson(k) (k<<1|1)
#define lowbit(x) ((x)&-(x))
typedef double db;
typedef long long ll;
typedef unsigned long long ull;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef pair<int,int> pii;
typedef __int128_t i128;
const int mod=1e9+7;
int gcd(int a,int b){return b?gcd(b,a%b):a;}
int qpow(int a,int b,int P=mod){int res=1;a%=P;assert(b>=0);for(;b;b>>=1){if(b&1)res=1ll*res*a%P;a=1ll*a*a%P;}return res;}
// Think twice,code once
const int N=1005;
const int inf=1e15;
struct Edge{
int from,to,cap,flow,cost;
Edge(int u,int v,int c,int f,int w):from(u),to(v),cap(c),flow(f),cost(w){}
};
struct MCMF{
int n,m;
vector<Edge>edges;
vector<int>G[N];
int inq[N];
int d[N];
int a[N];
int p[N];
void init(int n){
this->n=n;
edges.clear();
rep(i,0,n)G[i].clear();
}
void add(int u,int v,int c,int w){
edges.push_back(Edge(u,v,c,0,w));
edges.push_back(Edge(v,u,0,0,-w));
m=edges.size();
G[u].push_back(m-2);
G[v].push_back(m-1);
}
bool Bellman_Ford(int s,int t,int&flow,int&cost){
rep(i,0,n)d[i]=inf,inq[i]=0;
queue<int>q;
d[s]=0,a[s]=1,p[s]=0,inq[s]=1;
q.push(s);
while(!q.empty()){
int x=q.front();q.pop();
inq[x]=0;
rep(i,0,G[x].size()){
Edge&e=edges[G[x][i]];
if(e.cap>e.flow&&d[e.to]>d[x]+e.cost){
d[e.to]=d[x]+e.cost;
a[e.to]=min(a[x],e.cap-e.flow);
p[e.to]=G[x][i];
if(!inq[e.to])q.push(e.to),inq[e.to]=1;
}
}
}
if(d[t]==inf)return 0;
flow+=a[t];
cost+=d[t]*a[t];
for(int u=t;u!=s;u=edges[p[u]].from){
edges[p[u]].flow+=a[t];
edges[p[u]^1].flow-=a[t];
}
return 1;
}
int MincostFlow(int s,int t,int&cost){
int flow=0;cost=0;
while(Bellman_Ford(s,t,flow,cost));
return flow;
}
}g;
void solve(){
int n,m;cin>>n>>m;
vi l(m),cs(m),c(2*n),v(2*n);
rep(i,0,m)cin>>l[i];
rep(i,0,2*n)cin>>c[i],cs[--c[i]]++;
int vs=0;
rep(i,0,2*n)cin>>v[i],vs+=v[i];
int s=2*n+m,t=s+1;
g.init(t+1);
g.add(s,2*n-1,n,0);
rep(i,0,2*n-1)g.add(i+1,i,(i+1)/2,0);
rep(i,0,2*n)g.add(i,2*n+c[i],1,v[i]);
rep(i,0,m)g.add(2*n+i,t,max(0ll,cs[i]-l[i]),0);
int cost;
if(g.MincostFlow(s,t,cost)!=n)cout<<-1<<endl;
else cout<<vs-cost<<endl;
}
signed main(){
ios::sync_with_stdio(0);
cin.tie(0),cout.tie(0);
int T=1;
cin>>T;
while(T--)solve();
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3564kb
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: 3832kb
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:
-1 343766215 2351080746 3426965219 -1 1497027962 1351561190 2539318868 1013080942 4656646546 -1 -1 2231197660 2719131728 3983627641 4712174168 3121174891 1046749330 6115214757 3920988203 3914858167 3902088946 -1 2566553992 5268471900 5977120748 7505501534 -1 5054275471 1467678317 883992368 104456298...
result:
wrong answer 6th numbers differ - expected: '-1', found: '1497027962'