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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#99137 | #5504. Flower Garden | fansizhe | WA | 3339ms | 162956kb | C++23 | 3.4kb | 2023-04-21 11:57:16 | 2023-04-21 11:57:18 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
int n,m,pnum;
vector<int> edge[1000005];
int dfn[1000005],low[1000005],cnt;
stack<int> st;int ins[1000005];
int col[1000005],tot;
vector<int> e1[1000005],e2[1000005];
int deg[1000005];
int vis[1000005];
int num[1000005];
queue<int> que;
int tot1,tot2;
int ch[1000005][2];
void addedge(int x,int y){edge[x].push_back(y);}
void build1(int k,int l,int r){
if(l==r){
addedge(l,k+n);
return;
}
int mid=l+r>>1;
ch[k][0]=++tot1;build1(ch[k][0],l,mid);
ch[k][1]=++tot1;build1(ch[k][1],mid+1,r);
addedge(ch[k][0]+n,k+n);
addedge(ch[k][1]+n,k+n);
}
void build2(int k,int l,int r){
if(l==r){
addedge(k+n+tot1,l);
return;
}
int mid=l+r>>1;
ch[k][0]=++tot2;build2(ch[k][0],l,mid);
ch[k][1]=++tot2;build2(ch[k][1],mid+1,r);
addedge(k+n+tot1,ch[k][0]+n+tot1);
addedge(k+n+tot1,ch[k][1]+n+tot1);
}
void change1(int k,int l,int r,int x,int y,int z){
if(l>=x&&r<=y){
addedge(k+n,z);
return;
}
int mid=l+r>>1;
if(x<=mid)change1(ch[k][0],l,mid,x,y,z);
if(y>mid)change1(ch[k][1],mid+1,r,x,y,z);
}
void change2(int k,int l,int r,int x,int y,int z){
if(l>=x&&r<=y){
addedge(z,k+n+tot1);
return;
}
int mid=l+r>>1;
if(x<=mid)change2(ch[k][0],l,mid,x,y,z);
if(y>mid)change2(ch[k][1],mid+1,r,x,y,z);
}
void Tarjan(int x){
dfn[x]=low[x]=++cnt;
ins[x]=1;st.push(x);
for(int y:edge[x])
if(!dfn[y])Tarjan(y),low[x]=min(low[x],low[y]);
else if(ins[y])low[x]=min(low[x],dfn[y]);
if(low[x]==dfn[x]){
tot++;int y;num[tot]=0;
do{
y=st.top();st.pop();
col[y]=tot;num[tot]+=(y<=n);ins[y]=0;
}while(y!=x);
}
}
int main(){
int _;scanf("%d",&_);
while(_--){
scanf("%d%d",&n,&m);n*=3;
tot1=1,tot2=1;
build1(1,1,n);
build2(1,1,n);
for(int i=1;i<=m;i++){
int l1,r1,l2,r2;
scanf("%d%d%d%d",&l1,&r1,&l2,&r2);
change1(1,1,n,l1,r1,tot1+tot2+i);
change2(1,1,n,l2,r2,tot1+tot2+i);
}
pnum=n+tot1+tot2+m;cnt=tot=0;
for(int i=1;i<=pnum;i++)if(!dfn[i])Tarjan(i);
for(int i=1;i<=tot;i++)e1[i].clear(),e2[i].clear(),deg[i]=0;
for(int i=1;i<=pnum;i++)
for(int j:edge[i])if(col[i]!=col[j])
e1[col[i]].push_back(col[j]),e2[col[j]].push_back(col[i]);
int s=0,sum=0;
for(int i=1;i<=tot;i++)if(num[i]>=n)s=i;
for(int i=1;i<=tot;i++)vis[i]=0;
if(!s){
for(int i=1;i<=tot;i++)for(int j:e2[i])deg[j]++;
for(int i=1;i<=tot;i++)if(!deg[i])que.push(i);
while(!que.empty()){
int x=que.front();que.pop();
sum+=num[x];vis[x]=1;
if(sum>=n/3)break;
for(int y:e2[x])if(!--deg[y])que.push(y);
}
puts("TAK");
for(int i=1;i<=n;i++)if(vis[col[i]])putchar('F');else putchar('R');puts("");
while(!que.empty())que.pop();
}else{
que.push(s);
while(!que.empty()){
int x=que.front();que.pop();
sum+=num[x];
for(int y:e1[x])if(!vis[y])que.push(y),vis[y]=1;
}
if(sum<=n/3*2){
puts("TAK");
for(int i=1;i<=n;i++)if(vis[col[i]])putchar('F');else putchar('R');puts("");
}else{
sum=0;
for(int i=1;i<=tot;i++)vis[i]=0;
que.push(s);
while(!que.empty()){
int x=que.front();que.pop();
sum+=num[x];
for(int y:e2[x])if(!vis[y])que.push(y),vis[y]=1;
}
if(sum<=n/3*2){
puts("TAK");
for(int i=1;i<=n;i++)if(vis[col[i]])putchar('F');else putchar('R');puts("");
}else puts("NIE");
}
}
for(int i=1;i<=pnum;i++)edge[i].clear(),dfn[i]=0;
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 4ms
memory: 78648kb
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: 3339ms
memory: 162956kb
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 FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF...
result:
wrong answer zla odpowiedz!