Submission #1268444

#	Time	Username	Problem	Language	Result	Execution time	Memory
1268444		abdelhakim	식물 비교 (IOI20_plants)	C++20	5 / 100	46 ms	5704 KiB

plants

#include <bits/stdc++.h>
#include "plants.h"
#define ll long long
#define inf (ll) 1e17
using namespace std;
vector<ll> p;
ll n;
ll sum(ll l, ll r)
{
    if(l<=r)
    {
        ll sm=p[r];
        if(l>0) sm-=p[l-1];
        return sm;
    }
    else
    {
        return sum(l,n-1)+sum(0,r);
    }
}
void init(int k, std::vector<int> r)
{
    n=r.size();
    p.resize(n);
    p[0]=r[0];
    for (int i=1;i<n;i++)
    {
        p[i]=p[i-1]+r[i];
    }
}
int compare_plants(int x, int y)
{
    ll sm1=sum(x,y-1);
    ll sm2;
    if(x==0) sm2=sum(y,n-1);
    else
    {
        sm2=sum(y,x-1);
    }
    if(sm1 == y-x || sm2==0)
    {
        return -1;
    }
    else if(sm2==n-(y-x) || sm1==0) return 1;
    else return 0;
}

• Subtask 1: 5 / 5
• Subtask 2: 0 / 14
• Subtask 3: 0 / 13
• Subtask 4: 0 / 17
• Subtask 5: 0 / 11
• Subtask 6: 0 / 15
• Subtask 7: 0 / 25