제출 #623049

#제출 시각아이디문제언어결과실행 시간메모리
623049Siffer식물 비교 (IOI20_plants)C++14
5 / 100
93 ms10316 KiB
#include "plants.h"
#include<bits/stdc++.h>
using namespace std;

#define F first
#define S second

vector<pair<int,int>> v, d;
int n;

void init(int p, vector<int> r) {
    n = r.size();
    int s = 0; for(;r[s]; s++); s++;
    v.resize(n);
    d.resize(n);
    int b = s;
    int k = 0;
    for(int i = 0; i < n; i++) {
        v[(s+i)%n] = {b, k++};
        if(r[(s+i)%n] == 0) b = s+i+1, k = 0;
    }
    s = 0; for(;r[s]-1; s++); s++;
    b = s;
    k = 0;
    for(int i = 0; i < n; i++) {
        d[(s+i)%n] = {b, k++};
        if(r[(s+i)%n]) b = s+i+1, k = 0;
    }
}

int compare_plants(int x, int y) {
    if(v[x].F != v[y].F) {
        if(d[x].F != d[y].F) return 0;
        if(d[x].S > d[y].S) return -1;
        return 1;
    }
    if(v[x].S > v[y].S) return 1;
    return -1;
}


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