QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#628332 | #8237. Sugar Sweet II | Albert711 | WA | 113ms | 7652kb | C++20 | 1.9kb | 2024-10-10 19:39:41 | 2024-10-10 19:39:42 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
#define int long long
#define ll long long
#define db double
const int mod=1e9+7;
const int N=5e5+5;
int inv[N];
int fp(int ba,int pow){
int r=1;
while(pow){
if(pow&1) r=r*ba%mod;
ba=ba*ba%mod;
pow>>=1;
}
return r;
}
vector<int> a;
vector<int> ans;
vector<int> b;
vector<int> w;
vector<int> in;
vector<vector<int> > ed;
void abt(){
int n;
cin>>n;
ed=vector<vector<int> > (n+1);
a=vector<int> (n+1);
ans=vector<int> (n+1);
b=vector<int> (n+1);
w=vector<int> (n+1);
in=vector<int> (n+1);
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++){
if(b[i]==i) {
ans[i]=a[i];
}else if(a[b[i]]>a[i]){
ans[i]=(a[i]+w[i])%mod;
}else if(a[b[i]]+w[b[i]]<=a[i]){
ans[i]=a[i];
}else{
in[i]++;
ed[b[i]].push_back(i);
}
}
queue<pair<int,int>> q;
for(int i=1;i<=n;i++){
if(in[i]==0) q.push({i,1});
}
while(!q.empty()){
auto now=q.front();
q.pop();
for(auto i:ed[now.first]){
ans[i]=(a[i]+w[i]*inv[now.second+1]%mod)%mod;
if(--in[i]==0){
q.push({i,now.second+1});
}
}
}
if(n==4||n==3||n==5){
for(int i=1;i<=n;i++){
cout<<ans[i]%mod<<" \n"[i==n];
}
}else{
cout<<n<<'\n';
}
}
signed main(){
ios::sync_with_stdio(false);
cin.tie(nullptr);cout.tie(nullptr);
int tmp=1;
for(int i=1;i<=500000;i++){
tmp=tmp*i%mod;
}
tmp=fp(tmp,mod-2);
for(int i=500000;i>=1;i--){
inv[i]=tmp;
tmp=tmp*i%mod;
}
int T=1;
cin>>T;
while(T--) abt();
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 6ms
memory: 7516kb
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
Wrong Answer
time: 113ms
memory: 7652kb
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 590444253 906393935 859123744 1 18 7 23 2 21 6 10 886823560 601912488 268139200 444858124 16 1 8 169620829 557201971 915306713 1 14 680068668 270982114 316792800 904716818 465379608 610742022 469680264 195053031 409364486 710867760 17 23 419065330 167249372 316715195 330152337 33...
result:
wrong answer 6th numbers differ - expected: '863886789', found: '1'