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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#472607 | #5504. Flower Garden | zhao_daodao | WA | 3865ms | 472696kb | C++14 | 3.4kb | 2024-07-11 17:30:54 | 2024-07-11 17:30:54 |
Judging History
answer
#include<bits/stdc++.h>
#define int long long
using namespace std;
const int MAXN=1e6+5;
int T=-1;
#define ls(x) ((x)<<1)
#define rs(x) ((x)<<1|1)
struct Tree{
#define in(x) tr[x].in
#define out(x) tr[x].out
int in,out;
}tr[MAXN];int tot;
basic_string<int>V[MAXN];
inline void add(int u,int v){V[u].push_back(v);}
inline void build(int l,int r,int q){
if(l==r){
in(q)=out(q)=l;
return ;
}
int mid=l+r>>1;
in(q)=++tot,out(q)=++tot;
build(l,mid,ls(q)),build(mid+1,r,rs(q));
add(in(q),in(ls(q))),add(in(q),in(rs(q)));
add(out(ls(q)),out(q)),add(out(rs(q)),out(q));
}
inline void update(int l,int r,int ql,int qr,int q,int x,bool opt){
if(ql<=l&&r<=qr){
if(opt)add(x,out(q));
else add(in(q),x);
return ;
}int mid=l+r>>1;
if(ql<=mid)update(l,mid,ql,qr,ls(q),x,opt);
if(mid<qr)update(mid+1,r,ql,qr,rs(q),x,opt);
}
int n,q,w[MAXN];
int dfn[MAXN],low[MAXN],dfscnt;
int scc[MAXN],siz[MAXN],sc;
int instk[MAXN],stk[MAXN],tp;
inline void tarjan(int u){
dfn[u]=low[u]=++dfscnt;
instk[stk[++tp]=u]=1;
for(int v:V[u]){
if(!dfn[v]){
tarjan(v);
low[u]=min(low[u],low[v]);
}else if(instk[v]){
low[u]=min(low[u],dfn[v]);
}
}
if(dfn[u]==low[u]){
sc++;
while(stk[tp]!=u){
scc[stk[tp]]=sc;
instk[stk[tp--]]=0;
}
scc[stk[tp]]=sc;
instk[stk[tp--]]=0;
}
}
basic_string<int>G[2][MAXN];
int deg[MAXN],col[MAXN];
inline void dfs(int u){
col[u]=1;
for(int v:G[1][u])if(!col[v])
dfs(v);
}
signed main(){
cin.tie(0);
cout.tie(0);
ios::sync_with_stdio(false);
if(T==-1)cin>>T;
for(int i=1;i<=tot;i++)dfn[i]=low[i]=scc[i]=siz[i]=instk[i]=stk[i]=deg[i]=col[i]=0;
for(int i=1;i<=tot;i++)V[i].clear(),G[0][i].clear(),G[1][i].clear();
dfscnt=sc=tp=0;
cin>>n>>q;tot=3*n;
build(1,3*n,1);
for(int i=1;i<=3*n;i++)w[i]=1;
for(int i=1,a_,b_,c_,d_;i<=q;i++){
cin>>a_>>b_>>c_>>d_;
int now=++tot;
update(1,3*n,a_,b_,1,now,0);
update(1,3*n,c_,d_,1,now,1);
}
for(int i=1;i<=tot;i++)if(!dfn[i])tarjan(i);
for(int i=1;i<=tot;i++)siz[scc[i]]+=w[i];
for(int u=1;u<=tot;u++)for(int v:V[u])
if(scc[u]!=scc[v]){
G[1][scc[u]].push_back(scc[v]);
G[0][scc[v]].push_back(scc[u]);
deg[scc[u]]++;
}
queue<int>q;
for(int i=1;i<=sc;i++)if(!deg[i])q.push(i);
int all=0;
while(!q.empty()){
int u=q.front();q.pop();
if(siz[u]>n)continue;
col[u]=1,all+=siz[u];
if(all>=n)break;
for(int v:G[0][u])if(!--deg[v])q.push(v);
}
if(all>=n){
cout<<"TAK\n";
for(int i=1;i<=3*n;i++)
if(col[scc[i]])cout<<'F';
else cout<<'R';
cout<<"\n";
if(--T)main();else exit(0);
}
for(int _=1;_<=sc;_++)if(siz[_]>n){
for(int i=1;i<=sc;i++)col[i]=0;
all=0;dfs(_);
for(int i=1;i<=sc;i++)all+=col[i]*siz[i];
if(all<=2*n){
cout<<"TAK\n";
for(int i=1;i<=3*n;i++)
if(col[scc[i]])cout<<'F';
else cout<<'R';
cout<<"\n";
if(--T)main();else exit(0);
}
}
cout<<"NIE\n";
if(--T)main();else exit(0);
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 15ms
memory: 102524kb
input:
2 1 3 1 1 2 2 1 2 3 3 1 1 3 3 1 3 1 1 2 2 2 2 3 3 3 3 1 1
output:
TAK RRF NIE
result:
ok good!
Test #2:
score: -100
Wrong Answer
time: 3865ms
memory: 472696kb
input:
10 33333 100000 28701 40192 93418 95143 95902 97908 78378 78461 36823 44196 22268 23996 23977 24786 33315 48829 83965 90411 4923 8445 20235 21177 32543 47454 29598 35414 72477 73049 2014 12632 42163 46466 64305 65518 98825 99552 32331 41625 92772 96224 26500 54122 76990 77126 18249 20335 31165 36080...
output:
TAK FRFRFFRFRRFFRFRRFRRFRRFRRFRRFRRFRRFRRFRRFRRFFRFRRFRFRFRRFRRFRRFRRFRRFRRFRRFRRFRRFFRFRRFRRFRRFRRFRRFRFRFRRFRRFRRFFRFRRFRRFRRFRRFRRFRRFRRFFRFRRFRRFRRFRFRFRRFRRFRRFRRFRRFRRFRRFRRFRRFRRFRRFRRFFFFRRFRRFRFFFFFFRRFRRFRRFRRFRRFFRFRRFRRFRRFRRFRRFRRFRRFRRFRFRFRRFRRFRRFRRFRRFRRFRRFRRFRRFRRFRRFRRFRRFRRFRRFR...
result:
wrong answer zla odpowiedz!