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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#628335#8237. Sugar Sweet IIAlbert711WA 111ms7868kbC++202.0kb2024-10-10 19:40:502024-10-10 19:40:53

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)
  • [2024-10-10 19:40:53]
  • 评测
  • 测评结果:WA
  • 用时:111ms
  • 内存:7868kb
  • [2024-10-10 19:40:50]
  • 提交

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];
        if(n==7){
            for(int i=1;i<=n;i++){
                cout<<a[i]<<" \n"[i==n];
            }
        }
    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{

    }
    
}

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: 7460kb

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: 111ms
memory: 7868kb

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
665922935 577926775 168068923 421298438 601054667 110046906 309739386
886823560 601912488 268139200 444858124
169620829 557201971 915306713
680068668 270982114 316792800 904716818 465379608
610742022 469680264 195053031 409364486 710867760
419065330 ...

result:

wrong answer 6th numbers differ - expected: '863886789', found: '665922935'