oj.uz

답안 #827680

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
827680 2023-08-16T16:20:45 Z arnold518 드문 곤충 (IOI22_insects) C++17
0 / 100
 1 ms 212 KB 
#include "insects.h"
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

const int MAXN = 2000;

int A[MAXN+10];

int min_cardinality(int N)
{
	for(int i=0; i<N; i++)
	{
		move_inside(i); A[i]=1;
		if(press_button()>1)
		{
			move_outside(i); A[i]=0;
		}
	}
	int cnt=0;
	for(int i=0; i<N; i++) cnt+=A[i];
	for(int i=0; i<N; i++) if(A[i]) move_outside(i);

	int lo=1, hi=N/cnt+1;
	while(lo+1<hi)
	{
		int mid=lo+hi>>1, t=0;
		for(int i=0; i<N; i++)
		{
			move_inside(i); A[i]=1;
			if(press_button()==mid)
			{
				move_outside(i); A[i]=0; t++;
			}
		}
		for(int i=0; i<N; i++) if(A[i]) move_outside(i);
		if(t==cnt) lo=mid;
		else hi=mid;
	}
	return lo;
}

Compilation message

insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:30:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   30 |   int mid=lo+hi>>1, t=0;
      |           ~~^~~

Subtask #1
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Incorrect 1 ms 208 KB Wrong answer.
5 Halted 0 ms 0 KB -

Subtask #2
0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Incorrect 1 ms 208 KB Wrong answer.
5 Halted 0 ms 0 KB -

Subtask #3
0 / 75.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 212 KB Wrong answer.
2 Halted 0 ms 0 KB -