CF1380G.Circular Dungeon

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
const int maxn=3e5+100;
const int mod=998244353;
ll fpow (int x,int y) {
    ll ans=1;
    while (y) {
        if (y&1) ans=ans*x%mod;
        x=1ll*x*x%mod;
        y>>=1;
    }
    return ans;
}
ll a[maxn];
int n;
ll wjm;
int main () {
    scanf("%d",&n);
    for (int i=1;i<=n;i++) scanf("%lld",&a[i]);
    sort(a+1,a+1+n);
    for (int i=1;i<=n;i++) a[i]+=a[i-1];
    wjm=fpow(n,mod-2);
    for (int i=1;i<=n;i++) {
        ll ans=0;
        for (int j=n-i,k=1;j>0;j-=i,k++) {
            ans+=1ll*k*(a[j]-a[max(0,j-i)])%mod;
            ans%=mod;
        }
        printf("%lld ",ans*wjm%mod);
    }
}
原文地址:https://www.cnblogs.com/zhanglichen/p/13337208.html