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QOJ
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 |
---|---|---|---|---|---|---|---|---|---|
#120687 | #6660. 택시 여행 | xtqqwq# | 0 | 365ms | 122008kb | C++14 | 4.4kb | 2023-07-07 09:45:43 | 2024-05-26 01:47:10 |
Judging History
answer
#include<bits/stdc++.h>
#define pb push_back
#define fi first
#define se second
#define mp make_pair
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
typedef long double ld;
template <typename T> bool chkmin(T &x,T y){return x>y?x=y,1:0;}
template <typename T> bool chkmax(T &x,T y){return x<y?x=y,1:0;}
struct node{
ll k,b;
node(ll k=0,ll b=0):k(k),b(b){}
}line[2000005];
int n,tot,fs,mn,rt,ncnt,cnt,cur;
int v[200005],nxt[200005],h[100005],siz[100005],lch[6000005],rch[6000005],tag[6000005],dep[100005],pl[100005],f[100005],trt[100005];
ll c[200005],val[20][100005],a[100005],b[100005],dis[100005];
bool vis[100005],hv[100005];
vector<pll> vec[100005];
vector<int> inq[100005];
priority_queue<pll,vector<pll>,greater<pll> > q;
void addedge(int x,int y,ll z){
v[++tot]=y; c[tot]=z; nxt[tot]=h[x]; h[x]=tot;
v[++tot]=x; c[tot]=z; nxt[tot]=h[y]; h[y]=tot;
}
void getsize(int u,int fa){
siz[u]=1;
for(int p=h[u];p;p=nxt[p]){
if(v[p]==fa||vis[v[p]]) continue;
getsize(v[p],u);
siz[u]+=siz[v[p]];
}
}
void getroot(int u,int fa){
int mx=0;
for(int p=h[u];p;p=nxt[p]){
if(v[p]==fa||vis[v[p]]) continue;
getroot(v[p],u);
chkmax(mx,siz[v[p]]);
}
if(chkmin(mn,max(mx,fs-siz[u]))) rt=u;
}
void dfs(int u,int fa){
vec[rt].pb(mp(val[cur][u],u));
for(int p=h[u];p;p=nxt[p]){
if(v[p]==fa||vis[v[p]]) continue;
val[cur][v[p]]=val[cur][u]+c[p];
dfs(v[p],u);
}
}
void solve(int u){
vis[u]=1;
getsize(u,-1);
cur=dep[u];
val[cur][u]=0;
dfs(u,-1);
sort(vec[u].begin(),vec[u].end());
for(int p=h[u];p;p=nxt[p]){
if(vis[v[p]]) continue;
fs=siz[v[p]],mn=n,rt=0;
getroot(v[p],-1);
dep[rt]=dep[u]+1;
// adj[u].pb(rt);
f[rt]=u;
solve(rt);
}
}
ll get(int x,ll y){return line[x].k*y+line[x].b;}
void change(int &id,int l,int r,int c,int t){
if(!id) id=++ncnt;
if(!tag[id]) return (void)(tag[id]=c);
if(l==r){
if(get(tag[id],vec[t][l-1].fi)>get(c,vec[t][l-1].fi)) tag[id]=c;
return;
}
int mid=(l+r)/2;
if(line[tag[id]].k<line[c].k){
if(get(tag[id],vec[t][mid-1].fi)>get(c,vec[t][mid-1].fi)) change(rch[id],mid+1,r,tag[id],t),tag[id]=c;
else change(lch[id],l,mid,c,t);
}
else{
if(get(tag[id],vec[t][mid-1].fi)>get(c,vec[t][mid-1].fi)) change(lch[id],l,mid,tag[id],t),tag[id]=c;
else change(rch[id],mid+1,r,c,t);
}
}
ll query(int id,int l,int r,int x,int t){
if(!id) return 1ll<<60;
if(l==r) return get(tag[id],vec[t][x-1].fi);
int mid=(l+r)/2;
if(x<=mid) return min(get(tag[id],vec[t][x-1].fi),query(lch[id],l,mid,x,t));
else return min(get(tag[id],vec[t][x-1].fi),query(rch[id],mid+1,r,x,t));
}
ll calc(int x,int y){
ll res=query(trt[x],1,siz[x],y+1,x);
return res;
}
void init(){
for(int i=1;i<=n;i++){
if(pl[i]<vec[i].size()){
ll tmp=calc(i,pl[i]);
if(chkmin(dis[vec[i][pl[i]].se],tmp)) q.push(mp(tmp,vec[i][pl[i]].se));
inq[vec[i][pl[i]].se].pb(i);
}
}
}
void push(int x){
ll d=dis[x],ta=a[x],tb=b[x],bef=x;
// cout<<"push "<<x<<' '<<dis[x]<<endl;
while(x){
line[++cnt]=node(tb,ta+d+tb*val[dep[x]][bef]);
change(trt[x],1,siz[x],cnt,x);
if(pl[x]<vec[x].size()){
ll tmp=calc(x,pl[x]);
// cout<<"pushto "<<x<<' '<<vec[x][pl[x]].se<<' '<<tmp<<' '<<line[cnt].k<<' '<<line[cnt].b<<' '<<endl;
if(chkmin(dis[vec[x][pl[x]].se],tmp)) q.push(mp(tmp,vec[x][pl[x]].se));
}
x=f[x];
}
}
void pop(int x){
for(auto r:inq[x]){
while(pl[r]<vec[r].size()&&hv[vec[r][pl[r]].se]) pl[r]++;
if(pl[r]<vec[r].size()){
ll tmp=calc(r,pl[r]);
// cout<<"popto "<<r<<' '<<vec[r][pl[r]].se<<' '<<tmp<<endl;
if(chkmin(dis[vec[r][pl[r]].se],tmp)) q.push(mp(tmp,vec[r][pl[r]].se));
inq[vec[r][pl[r]].se].pb(r);
}
}
inq[x].clear();
}
vector<ll> travel(vector<ll> A,vector<int> B,vector<int> U,vector<int> V,vector<int> W){
n=A.size();
for(int i=0;i<n;i++) a[i+1]=A[i],b[i+1]=B[i];
for(int i=0;i<n-1;i++) addedge(U[i]+1,V[i]+1,W[i]);
getsize(1,-1);
fs=n,mn=n,rt=0;
getroot(1,-1);
solve(rt);
for(int i=1;i<=n;i++) dis[i]=1ll<<60;
dis[1]=0;
init();
push(1);
hv[1]=1;
while(!q.empty()){
int t=q.top().se; q.pop();
if(hv[t]) continue;
hv[t]=1;
pop(t);
push(t);
}
vector<ll> ret;
for(int i=2;i<=n;i++) ret.pb(dis[i]);
// for(int i=2;i<=n;i++) cout<<dis[i]<<' ';
// cout<<endl;
return ret;
}
详细
Subtask #1:
score: 0
Wrong Answer
Test #1:
score: 7
Accepted
time: 0ms
memory: 47688kb
input:
2 684124582850 713748627948 74361 256955 0 1 661088
output:
secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I 733283747618 secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I
result:
ok 3 lines
Test #2:
score: -7
Wrong Answer
time: 3ms
memory: 45724kb
input:
3 251115773325 363097865287 358609487841 826785 213106 914768 0 1 851938 2 0 231697
output:
secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I 1152921504606846976 1152921504606846976 secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I
result:
wrong answer 2nd lines differ - expected: '955485332655', found: '1152921504606846976'
Subtask #2:
score: 0
Wrong Answer
Test #31:
score: 0
Wrong Answer
time: 365ms
memory: 122008kb
input:
100000 746699125678 374834842799 250803643493 620187038832 454433387570 406226564003 897157438699 99473514061 734784419618 503968957100 363935477037 277126009840 52078020050 990757079812 847235285349 950784717285 271017141367 861087225700 996035427219 520682200664 282013988419 415183977876 882007771...
output:
secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I 2125490123782 1636760433058 2131282232650 2408842387198 2893332914530 2940403755930 3003543484926 3059216601498 3109347572318 3173036690606 3224306800424 3269329387652 3324613979094 3328434230236 3342554792694 3391237344396 3417184791476 3419985316546 343705790...
result:
wrong answer 2nd lines differ - expected: '1148030742334', found: '2125490123782'
Subtask #3:
score: 0
Skipped
Dependency #1:
0%
Subtask #4:
score: 0
Wrong Answer
Test #69:
score: 0
Wrong Answer
time: 73ms
memory: 71852kb
input:
100000 15175010 23519365 21177669 27079342 9089 16784452 29693960 23124925 17048604 10179491 12828214 24992902 8483134 2928073 23807522 7332137 17421520 28460746 1607282 13224363 11900728 11794692 11495061 4687109 23460275 7657982 27417256 16978162 7326803 23083826 24942987 16610314 12147303 2828271...
output:
secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I 1152921504606846976 1152921504606846976 1152921504606846976 1152921504606846976 1152921504606846976 1152921504606846976 1152921504606846976 1152921504606846976 1152921504606846976 1152921504606846976 1152921504606846976 1152921504606846976 1152921504606846976 1...
result:
wrong answer 2nd lines differ - expected: '16705757', found: '1152921504606846976'
Subtask #5:
score: 0
Wrong Answer
Test #94:
score: 0
Wrong Answer
time: 79ms
memory: 69804kb
input:
99281 551670361798 568902251563 418071776626 697635341894 641578820039 117221079324 812766431051 425410617978 663769685693 282144284527 799662290178 749088952784 586626406385 122473825417 459510657357 871705247919 443707710712 735612808044 237919555727 829939639783 122127143240 616906466299 24431898...
output:
secret: XBNN6R0Jnospxlfz11GWxd4ldkzb0I 1152921504606846976 1152921504606846976 1152921504606846976 1152921504606846976 1152921504606846976 1152921504606846976 1152921504606846976 1152921504606846976 1152921504606846976 1152921504606846976 1152921504606846976 1152921504606846976 1152921504606846976 1...
result:
wrong answer 2nd lines differ - expected: '598598746654', found: '1152921504606846976'
Subtask #6:
score: 0
Skipped
Dependency #1:
0%