QOJ.ac
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 |
---|---|---|---|---|---|---|---|---|---|
#623752 | #8237. Sugar Sweet II | FXLY_awa# | WA | 125ms | 11296kb | C++20 | 3.6kb | 2024-10-09 13:54:44 | 2024-10-09 13:54:46 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
#define int long long
#define itn int
#define endl '\n'
#define Endl endl
#define ednl endl
#define al(a) (a).begin(),(a).end()
#define all(a) (a).begin()+1,(a).end()
#define debug(x) {cerr<<"ss:"<<x<<endl;}
#define qdebug(x) {cerr<<"ss:";for(auto i:x)cout<<i<<" ";cout<<endl;}
#define lowbit(x) (x&-x)
#define vi vector<int>
#define pii pair<int,int>
#define pb push_back
#define fs first
#define sc second
constexpr long long maxlonglong = 9223372036854775807; //9e18
constexpr int maxint = 2147483647; //2e9
constexpr int INF = 0x7f7f7f7f7f7f7f7f; //2139062143^2
constexpr int M = 1e9 + 7;
constexpr int mod = 1e9+7;
constexpr int hs = 0x1F351F35; // good hash number.
const double pi = acos(-1.0);
const double eps = 1e-15;
vector<int> input(int n){vector<int> a(n+1);for(int i=1;i<=n;i++)cin>>a[i];return a;}
mt19937_64 rnd(time(0));
constexpr int N=1231564;
vector<vi> g;
int power(int a,int b,int p){
int ans=1%p;
for(;b;b>>=1){
if(b&1)ans=(long long)ans*a%p;
a=(long long)a*a%p;
}
return ans;
}
vector<int> fac,inv;
void init(int n)
{
fac.resize(n+1);inv.resize(n+1);
fac[0]=1,inv[0]=1;
for(int i=1;i<=n;i++)
fac[i]=fac[i-1]*i%mod;
int res=1%mod,a=fac[n];
//inv[maxn-1]=power(fac[maxn-1],mod-2,mod);//下面6行和均为快速幂逆元
for(int b=mod-2;b;b>>=1){//快速幂逆元
if(b&1)res=(long long)res*a%mod;
a=(long long)a*a%mod;
}
inv[n]=res;
for(int i=n-1;i;i--)
inv[i]=inv[i+1]*(i+1)%mod;
}
int c(int a,int b){//Cab a在下
if(a<0||b<0||a<b) return 0;
return fac[a]*inv[a-b]%mod*inv[b]%mod;
}
vi ans,w,a,b;
int n;
void dfs(int u,int dep){
if(dep!=1){
ans[u]+=fac[n-dep]*c(n,dep)%mod*w[u]%mod*inv[n]%mod;
ans[u]%=mod;
}
for(auto v:g[u]){
if(dep==1 && ans[u]>ans[v])
{
dfs(v,dep+1);
}
else if(dep>1)dfs(v,dep+1);
}
}
inline void solve(){
cin>>n;
g.clear();g.resize(n+1);
a=input(n),b=input(n);
w=input(n);
ans=a;
vi book(n+1);
for(int i=1;i<=n;i++){
if(a[i]<a[b[i]]){
ans[i]+=w[i];
ans[i]%=mod;
}
else if(a[i]<a[b[i]]+w[b[i]]&&i!=b[i]){
g[b[i]].push_back(i);
book[i]=1;
}
}
for(int i=1;i<=n;i++){
if(book[i]) continue;
dfs(i,1);
}
for(int i=1;i<=n;i++){
cout<<ans[i]<<" \n"[i==n];
}
}
signed main()
{
//freopen("E:\work tool\code document\data\input.in", "r", stdin);
//freopen("E:\work tool\code document\data\output.out", "w", stdout);
ios::sync_with_stdio(false);
ios_base::sync_with_stdio(false);
cin.tie(0);
cout.tie(0); //关闭同步 如果使用 则不要使用<cstdio>
cout << fixed << setprecision(20);
init(5e5+5);
//fac[0]=1;
int T=1;
cin>>T;
while(T--){
solve();
}
return 0;
}
详细
Test #1:
score: 100
Accepted
time: 7ms
memory: 10936kb
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: 125ms
memory: 11296kb
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 863886789 871186919 814243920 968784984 206455474 17527050 449261413 196759729 901433117 519383814 907574792 983760005 984444619 489899014 435736558 113628626 977360756 482247153 963066959 665922935 577926775 168068923 421298438 601054667 99438820 30...
result:
wrong answer 27th numbers differ - expected: '132646723', found: '168068923'