Submission #1164161

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1164161	2025-03-09 06:39:40	PikachudoraEHE	Addk (eJOI21_addk)	C++20	0 / 100	92 ms	1348 KiB

Main

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#include<bits/stdc++.h>
using namespace std;
const int N = 1e5+5;
int cur[N],n,k;
struct fenwick{
    int f[N];
    void update(int idx,int val){
        for(int i=idx;i<=n;i+=i&-i){
                f[i]+=val;
        }
    return;
    }
    int query(int idx){
        int s= 0;
        for(int i=idx;i>0;i-=i&-i){
                s+=f[i];
        }
    return s;
    }
}f1,f2,f3;
int main(){
    //ios_base::sync_with_stdio(0);cin.tie(0);
    cin>>n>>k;
    for(int i=1;i<=n;i++){
        cin>>cur[i];
        f1.update(i,cur[i]);
        f2.update(i,cur[i]*i);
        f3.update(n-i+1,cur[i]*(n-i+1));
    }
    int q;cin>>q;
 
 
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• Subtask 1: 0 / 36
• Subtask 2: 0 / 56
• Subtask 3: 0 / 8