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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#657906#8237. Sugar Sweet IIshinonomezhouTL 0ms19384kbC++231.2kb2024-10-19 15:42:172024-10-19 15:42:17

Judging History

你现在查看的是最新测评结果

  • [2024-11-04 16:59:03]
  • hack成功,自动添加数据
  • (/hack/1109)
  • [2024-10-19 15:42:17]
  • 评测
  • 测评结果:TL
  • 用时:0ms
  • 内存:19384kb
  • [2024-10-19 15:42:17]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
const ll mod=1e9+7,N=5e5+2e2;
ll a[N],b[N],w[N],ans[N],way[N],fact[N];
ll ksm(ll a,ll b){
	ll sz=a;
	ll ans=1;
	while(b){
		if(b&1)ans=ans*sz%mod;
		sz=sz*sz%mod;
		b>>=1;
	}
	return (ans+mod)%mod;
}

void solve(int i){
	if(b[i]==i){
		ans[i]=a[i];
		way[i]=1;
		return;
	}
	if(a[i]<a[b[i]]){
		ans[i]=a[i]+w[i];
		way[i]=1;
		return ;
	}
	else if(a[i]>=a[b[i]]+w[b[i]]){
		ans[i]=a[i];
		way[i]=1;
		return ;
	}
	else{
		if(way[b[i]]==-1){
			solve(b[i]);
		}
		ll temp=ksm(fact[way[ b[i] ]+ 1 ],mod-2);
		ans[i]=((a[i]+w[i])*temp%mod+a[i]*(fact[way[ b[i] ]+ 1 ]-1+mod)*temp%mod+mod)%mod;
		way[i]=way[b[i]]+1;
		return;
	}
}



int main(){
	ios::sync_with_stdio(false);
	cin.tie(0),cout.tie(0);
	fact[0]=1;
	for(ll i=1;i<=5e5;i++){
		fact[i]=fact[i-1]*i%mod;
	}
	int T;
	cin>>T;
	while(T--){
		memset(way,-1,sizeof way);
		ll n;
		cin>>n;
		for(int i=1;i<=n;i++)cin>>a[i];
		for(int i=1;i<=n;i++)cin>>b[i];
		for(int i=1;i<=n;i++)cin>>w[i];
		
		for(int i=1;i<=n;i++){
//			cout<<"y\n";
			if(way[i]==-1)solve(i);
			cout<<ans[i]<<' ';
		}
		cout<<"\n";
		
		
		
	}
	
}

Details

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Test #1:

score: 100
Accepted
time: 0ms
memory: 19384kb

input:

4
4
2 5 5 2
4 2 1 3
3 2 1 4
3
5 4 3
1 1 1
6 6 6
3
5 4 3
2 3 1
1 2 3
5
2 1 3 2 1
5 1 1 3 4
1 3 4 2 4

output:

500000007 5 5 6 
5 10 9 
166666673 5 6 
500000006 4 3 4 5 

result:

ok 15 numbers

Test #2:

score: -100
Time Limit Exceeded

input:

50000
5
508432375 168140163 892620793 578579275 251380640
3 4 4 1 3
346232959 736203130 186940774 655629320 607743104
1
863886789
1
364158084
18
864679185 463975750 558804051 604216585 694033700 499417132 375390750 337590759 467353355 111206671 983760005 984444619 322277587 138763925 205122047 97736...

output:

854665334 904343293 462121091 905350506 859123744 
863886789 
871186919 814243920 968784984 1206455481 855293146 1449261420 527309234 901433117 519383814 907574792 983760005 984444619 489899014 435736558 1113628633 977360756 361646128 963066959 
677431680 575333297 122924733 421298438 601054667 1099...

result: