Submission #1049504

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1049504	2024-08-08 19:51:05	PoonYaPat	Diversity (CEOI21_diversity)	C++14	64 / 100	7067 ms	243296 KiB

diversity

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int,int> pii;
//sl : increase from l
//sr : increase from r
const int mx=300000,MID=150000,sq=1350;
struct NN {
    ll sum,sl,sr,cnt;
} s[1<<21];
int ccnt[mx+5],posi[mx+5],num[mx+5];
NN merge(NN a, NN b) {
    NN res;
    res.sum=a.sum+b.sum;
    res.cnt=a.cnt+b.cnt;
    res.sl=a.sl+a.cnt*b.sum+b.sl;
    res.sr=b.sr+b.cnt*a.sum+a.sr;
    return res;
}
ll fast2_query(int l, int r, int idx, int x) {
    if (x>r) return s[idx].sr+s[idx].sum*(ll)(x-r);
    if (x<l) return s[idx].sl+s[idx].sum*(ll)(l-x);
    if (l==r) {
        s[idx]={ccnt[l],ccnt[l],ccnt[l],1};
 
 
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• Subtask 1: 4 / 4
• Subtask 2: 10 / 10
• Subtask 3: 8 / 8
• Subtask 4: 16 / 16
• Subtask 5: 26 / 26
• Subtask 6: 0 / 36