Submission #1041375

#	Time	Username	Problem	Language	Result	Execution time	Memory
1041375		vjudge1	Comparing Plants (IOI20_plants)	C++17	14 / 100	4061 ms	13652 KiB

plants

#include "plants.h"
#include<bits/stdc++.h>
using namespace std;
int n, pos[100100],CA;
vector<int> R;
set<int> CD;
void init(int k, std::vector<int> r) {
    R=r;
    n=r.size();
    for(int i=0;i<n;i++)
        if(!r[i])
            CD.insert(i);
    while(CD.size()){
        int bst=*CD.begin(),gp=*CD.begin()+n-*--CD.end();
        auto it=++CD.begin();
        while(it!=CD.end()){
            int G=*it-*prev(it);
            if(G>gp)
                gp=G,bst=*it;
            it++;
        }
        pos[bst]=++CA;
        CD.erase(bst);
        for(int i=1;i<k;i++){
            int c=(bst+n-i)%n;
            if(!--R[c])
                CD.insert(c);
        }
    }
}
int compare_plants(int x, int y) {
    return pos[x]<pos[y]?1:-1;
}

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