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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
#745113#9619. 乘积,欧拉函数,求和WhybullYMe#WA 423ms4172kbC++202.8kb2024-11-14 04:34:122024-11-14 04:34:12

Judging History

你现在查看的是最新测评结果

  • [2024-11-14 04:34:12]
  • 评测
  • 测评结果:WA
  • 用时:423ms
  • 内存:4172kb
  • [2024-11-14 04:34:12]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
#pragma GCC optimize("Ofast,no-stack-protector,unroll-loops")
#define ALL(v) v.begin(),v.end()
#define For(i,_) for(int i=0,i##end=_;i<i##end;++i) // [0,_)
#define FOR(i,_,__) for(int i=_,i##end=__;i<i##end;++i) // [_,__)
#define Rep(i,_) for(int i=(_)-1;i>=0;--i) // [0,_)
#define REP(i,_,__) for(int i=(__)-1,i##end=_;i>=i##end;--i) // [_,__)
typedef long long ll;
typedef unsigned long long ull;
#define V vector
#define pb push_back
#define pf push_front
#define qb pop_back
#define qf pop_front
#define eb emplace_back
typedef pair<int,int> pii;
typedef pair<ll,int> pli;
#define fi first
#define se second
const int dir[4][2]={{-1,0},{0,1},{1,0},{0,-1}},inf=0x3f3f3f3f,mod=998244353;
const ll infl=0x3f3f3f3f3f3f3f3fll;
template<class T>inline bool ckmin(T &x,const T &y){return x>y?x=y,1:0;}
template<class T>inline bool ckmax(T &x,const T &y){return x<y?x=y,1:0;}
int init=[](){return cin.tie(nullptr)->sync_with_stdio(false),0;}();
int main(){
    int t_case=1;
    //scanf("%d",&t_case);
    while(t_case--){
        int n;
        scanf("%d",&n);
        V<int>a(n);
        for(int &i:a)scanf("%d",&i);
        V<int>id(3001,-1),inv(3001),pri;
        inv[1]=1;
        V<bool>vis(3001);
        FOR(i,2,3001){
            inv[i]=1ll*(mod-mod/i)*inv[mod%i]%mod;
            if(!vis[i]){
                id[i]=pri.size();
                pri.pb(i);
                for(int j=i<<1;j<3001;j+=i)vis[j]=true;
            }
        }
        V<int>coef(1<<16);
        coef[0]=1;
        For(i,16){
            coef[1<<i]=1-inv[pri[i]];
            if(coef[1<<i]<0)coef[1<<i]+=mod;
        }
        For(i,1<<16){
            int j=i&-i;
            coef[i]=1ll*coef[j]*coef[i^j]%mod;
        }
        V<array<int,3>>b;
        V<int>f(1<<16);
        f[0]=1;
        For(i,n){
            int S=0,x=a[i];
            For(j,16)if(x%pri[j]==0){
                do x/=pri[j];while(x%pri[j]==0);
                S|=1<<j;
            }
            if(x>1)b.pb({x,S,a[i]});
            else Rep(j,1<<16)f[j|S]=(f[j|S]+1ll*f[j]*a[i]%mod*coef[(j|S)^j])%mod;
        }
        sort(ALL(b));
        For(i,b.size()){
            int j=i+1;
            while(j<b.size()&&b[i][0]==b[j][0])++j;
            V<int>g(1<<16);
            FOR(k,i,j){
                auto [x,y,z]=b[k];
                Rep(l,1<<16){
                    int add=1ll*f[l]*z%mod*coef[(y|l)^y]%mod*(mod+1-inv[x])%mod;
                    add=(add+1ll*g[l]*z%mod*coef[(y|l)^y])%mod;
                    if((g[y|l]+=add)>=mod)g[y|l]-=mod;
                }
            }
            For(k,1<<16)if((f[k]+=g[k])>=mod)f[k]-=mod;
            i=j-1;
        }
        int ans=0;
        For(i,1<<16)if((ans+=f[i])>=mod)ans-=mod;
        printf("%d\n",ans);
    }
    return 0;
}

詳細信息

Test #1:

score: 100
Accepted
time: 2ms
memory: 4144kb

input:

5
1 6 8 6 2

output:

892

result:

ok single line: '892'

Test #2:

score: 0
Accepted
time: 2ms
memory: 4144kb

input:

5
3 8 3 7 8

output:

3157

result:

ok single line: '3157'

Test #3:

score: -100
Wrong Answer
time: 423ms
memory: 4172kb

input:

2000
79 1 1 1 1 1 1 2803 1 1 1 1 1 1 1609 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2137 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 613 1 499 1 211 1 2927 1 1 1327 1 1 1123 1 907 1 2543 1 1 1 311 2683 1 1 1 1 2963 1 1 1 641 761 1 1 1 1 1 1 1 1 1 1 1 1489 2857 1 1 1 1 1 1 1 1 1 1 1 1 1 967 1 821 1 1 1 1 2143 1861...

output:

355225073

result:

wrong answer 1st lines differ - expected: '50965652', found: '355225073'