Submission #674530

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
674530	2022-12-24 20:49:49	alexdd	Election (BOI18_election)	C++17	100 / 100	486 ms	29444 KiB

election

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#pragma GCC optimize("O3,unroll-loops")
#include<bits/stdc++.h>
using namespace std;
struct node
{
    int max_pref;
    int max_suff;
    int sum;
    int qry;
};
node combine(node x, node y)
{
    node rez;
    rez.sum = x.sum + y.sum;
    rez.max_pref = max(x.max_pref, x.sum + y.max_pref);
    rez.max_suff = max(y.max_suff, y.sum + x.max_suff);
    rez.qry = max(x.max_pref + y.max_suff, max(x.qry + y.sum, y.qry + x.sum));
    return rez;
}
node aint[2100001];
int n;
int v[500001];
void build(int nod, int st, int dr)
{
    if(st==dr)
    {
        int x;
        if(v[st]==1) x=1;
        else x=0;
        aint[nod]={max(0,v[st]),max(0,v[st]),v[st],x};
 
 
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• Subtask 1: 28 / 28
• Subtask 2: 54 / 54
• Subtask 3: 18 / 18