Submission #817379

#	Time	Username	Problem	Language	Result	Execution time	Memory
817379		jlallas384	Comparing Plants (IOI20_plants)	C++17	14 / 100	4070 ms	8628 KiB

plants

#include "plants.h"
#include <bits/stdc++.h>
using namespace std;

vector<int> ans;
void init(int k, std::vector<int> r) {
	int n = r.size();
	ans.resize(n);
	for(int val = n - 1; val >= 0; val--){
		vector<int> a;
		for(int i = 0; i < n; i++){
			if(r[i] == 0){
				a.push_back(i);
			}
		}
		int bst = -1;
		for(int i = 0; i < a.size(); i++){
			int prv = (i - 1 + a.size()) % a.size();
			int d = (i == 0 ? a[i] + n - a[prv] : a[i] - a[prv]);
			if(d >= k){
				assert(bst == -1);
				bst = a[i];
			}
		}
		ans[bst] = val;
		r[bst] = 1e9;
		for(int i = 1; i < k; i++){
			int id = (bst - i + n) % n;
			r[id] = max(r[id] - 1, 0);
		}
	}
}

int compare_plants(int x, int y) {
	if(ans[x] > ans[y]) return 1;
	else return -1;
}

Compilation message (stderr)

plants.cpp: In function 'void init(int, std::vector<int>)':
plants.cpp:17:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |   for(int i = 0; i < a.size(); i++){
      |                  ~~^~~~~~~~~~

• 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