oj.uz

답안 #825896

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
825896 2023-08-15T09:08:36 Z amunduzbaev 식물 비교 (IOI20_plants) C++17
0 / 100
 48 ms 7148 KB 
#include "plants.h"

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

#define ar array
typedef long long ll;
//~ #define int ll

const int inf = 1e9;
const int N = 2e5 + 5;

struct ST{
	ar<int, 2> tree[N << 2];
	int f[N << 2];
	
	void build(int lx, int rx, int x){
		if(lx == rx) { tree[x][1] = lx; return; };
		int m = (lx + rx) >> 1;
		build(lx, m, x << 1), build(m + 1, rx, x << 1 | 1);
		tree[x][1] = lx;
	}
	
	ST(){
		build(0, N, 1);
	}
	
	void push(int x, int lx, int rx){
		if(lx == rx) return;
		tree[x << 1][0] += f[x];
		tree[x << 1 | 1][0] += f[x];
		f[x << 1] += f[x], f[x << 1 | 1] += f[x];
		f[x] = 0;
	}
	
	void add(int l, int r, int v, int lx, int rx, int x){
		if(lx > r || rx < l) return;
		if(lx >= l && rx <= r){
			tree[x][0] += v;
			f[x] += v;
			return;
		}
		push(x, lx, rx);
		int m = (lx + rx) >> 1;
		add(l, r, v, lx, m, x << 1), add(l, r, v, m + 1, rx, x << 1 | 1);
		tree[x] = min(tree[x << 1], tree[x << 1 | 1]);
	}
	
	void add(int l, int r, int v) { return add(l, r, v, 0, N, 1); }
	
	ar<int, 2> get(int l, int r, int lx, int rx, int x){
		if(lx > r || rx < l) return {inf, inf};
		if(lx >= l && rx <= r) return tree[x];
		push(x, lx, rx);
		int m = (lx + rx) >> 1;
		return min(get(l, r, lx, m, x << 1), get(l, r, m + 1, rx, x << 1 | 1));
	}
	
	ar<int, 2> get(int l, int r){
		return get(l, r, 0, N, 1);
	}
}tree;

vector<int> a;
int n;

void init(int k, vector<int> r) {
	
	n = r.size();
	a.resize(n);
	
	{
		int cnt = 0;
		for(int i=0;i<k - 1;i++) cnt += (r[i] == 0);
		for(int i=k - 1;;){
			tree.add(i, i, r[i] + cnt);
			
			cnt -= (r[(i + n - k + 1) % n] == 0);
			cnt += (r[i] == 0);
			i = (i + 1) % n;
			if(i == k - 1) break;
		}
	}
	
	for(int j=n;j>0;j--){
		//~ for(int i=0;i<n;i++) cout<<tree.get(i, i)[0]<<" ";
		//~ cout<<"\n";
		int p = tree.get(0, n - 1)[1];
		
		a[p] = j;
		tree.add(p, p, inf);
		{
			int l = p - k + 1, r = p;
			tree.add(max(l, 0), r, -1);
			if(l < 0) tree.add(n + l, n - 1, -1);
		}
		{
			int l = p, r = p + k - 1;
			tree.add(l, min(r, n - 1), -1);
			if(n <= r) tree.add(0,  r - n, -1);
		}
	}
	
	//~ for(int i=0;i<n;i++) cout<<a[i]<<" ";
	//~ cout<<"\n";
	
	return;
}

int compare_plants(int x, int y) {
	if(a[x] > a[y]) return 1;
	if(a[x] < a[y]) return -1;
	
	return 0;
}

Subtask #1
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4436 KB Output is correct
2 Correct 2 ms 4436 KB Output is correct
3 Correct 2 ms 4436 KB Output is correct
4 Incorrect 3 ms 4436 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #2
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4436 KB Output is correct
2 Correct 3 ms 4436 KB Output is correct
3 Correct 2 ms 4384 KB Output is correct
4 Correct 2 ms 4436 KB Output is correct
5 Incorrect 3 ms 4436 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #3
0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4436 KB Output is correct
2 Correct 3 ms 4436 KB Output is correct
3 Correct 2 ms 4384 KB Output is correct
4 Correct 2 ms 4436 KB Output is correct
5 Incorrect 3 ms 4436 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #4
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 4436 KB Output is correct
2 Correct 2 ms 4436 KB Output is correct
3 Incorrect 48 ms 7148 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #5
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 4436 KB Output is correct
2 Correct 2 ms 4436 KB Output is correct
3 Incorrect 2 ms 4436 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #6
0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 4436 KB Output is correct
2 Correct 2 ms 4436 KB Output is correct
3 Incorrect 2 ms 4436 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #7
0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4436 KB Output is correct
2 Correct 2 ms 4436 KB Output is correct
3 Correct 2 ms 4436 KB Output is correct
4 Incorrect 3 ms 4436 KB Output isn't correct
5 Halted 0 ms 0 KB -