oj.uz

답안 #598909

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
598909 2022-07-19T07:34:23 Z denniskim Let's Win the Election (JOI22_ho_t3) C++17
21 / 100
 1738 ms 444 KB 
#include <bits/stdc++.h>

using namespace std;
typedef long long ll;
typedef __int128 lll;
typedef long double ld;
#define MAX 9223372036854775807LL
#define MIN -9223372036854775807LL
#define INF 0x3f3f3f3f3f3f3f3f
#define fi first
#define se second

ll n;
ll k;
pair< pair<ll, ll>, ll> a[510];
pair<ll, ll> won[510];
ld ans = INF;
ll chk[510];

ld calc(void)
{
	vector<ll> aa, bb;
	ld ret = 0;
	ll ppl = 1;
	
	for(ll i = 1 ; i <= n ; i++)
	{
		if(chk[i] == 1)
			aa.push_back({won[i].se});
		else if(chk[i] == 2)
			bb.push_back({won[i].fi});
	}
	
	sort(bb.begin(), bb.end());
	
	for(auto &i : bb)
	{
		ret += (ld)i / (ld)ppl;
		ppl++;
	}
	
	for(auto &i : aa)
		ret += (ld)i / (ld)ppl;
	
	return ret;
}

int main(void)
{
	scanf("%lld", &n);
	scanf("%lld", &k);
	
	for(ll i = 1 ; i <= n ; i++)
	{
		scanf("%lld %lld", &a[i].fi.se, &a[i].fi.fi);
		
		if(a[i].fi.fi == -1)
			a[i].fi.fi = 10000000000000;
		
		won[i] = a[i].fi;
		a[i].se = i;
	}
	
	sort(a + 1, a + 1 + n);
	
	for(ll i = 1 ; i <= k ; i++)
		chk[a[i].se] = 2;
	
	for(ll i = 0 ; i < k ; i++)
	{
		vector<ll> vec;
		vector< pair< pair<ll, ll>, ll> > vec2;
		ld minn = INF;
		ll mini = INF, ww = 0;
		ll ad = 0, sb = 0;
		
		ans = min(ans, calc());
		
		for(ll j = 1 ; j <= n ; j++)
		{
			if(chk[a[j].se] == 2)
				vec.push_back(j);
			
			else if(!chk[a[j].se])
			{
				if(mini > a[j].fi.se)
				{
					mini = a[j].fi.se;
					ww = j;
				}
			}
		}
		
		for(auto &j : vec)
		{
			chk[a[j].se] = 0;
			chk[a[j].se] = 1;
			
			ld gappp = calc();
			
			if(minn > gappp)
			{
				minn = gappp;
				ad = a[j].se;
				sb = a[j].se;
			}
			
			chk[a[j].se] = 2;
			
			if(ww)
			{
				chk[a[j].se] = 0;
				chk[a[ww].se] = 1;
				
				gappp = calc();
				
				if(minn > gappp)
				{
					minn = gappp;
					ad = a[ww].se;
					sb = a[j].se;
				}
				
				chk[a[j].se] = 2;
				chk[a[ww].se] = 0;
			}
		}
		
		chk[sb] = 0;
		chk[ad] = 1;
	}
	
	ans = min(ans, calc());
	
	printf("%.10Lf", ans);
	return 0;
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:50:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   50 |  scanf("%lld", &n);
      |  ~~~~~^~~~~~~~~~~~
Main.cpp:51:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   51 |  scanf("%lld", &k);
      |  ~~~~~^~~~~~~~~~~~
Main.cpp:55:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   55 |   scanf("%lld %lld", &a[i].fi.se, &a[i].fi.fi);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 4 ms 212 KB Output is correct
6 Correct 47 ms 212 KB Output is correct
7 Correct 189 ms 320 KB Output is correct
8 Correct 643 ms 316 KB Output is correct
9 Correct 666 ms 316 KB Output is correct
10 Correct 498 ms 316 KB Output is correct

Subtask #2
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 4 ms 212 KB Output is correct
6 Correct 47 ms 212 KB Output is correct
7 Correct 189 ms 320 KB Output is correct
8 Correct 643 ms 316 KB Output is correct
9 Correct 666 ms 316 KB Output is correct
10 Correct 498 ms 316 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 113 ms 308 KB Output is correct
13 Correct 79 ms 212 KB Output is correct
14 Correct 80 ms 212 KB Output is correct
15 Correct 996 ms 312 KB Output is correct
16 Correct 1032 ms 312 KB Output is correct
17 Correct 687 ms 316 KB Output is correct
18 Correct 1738 ms 316 KB Output is correct
19 Correct 1704 ms 316 KB Output is correct
20 Correct 978 ms 316 KB Output is correct

Subtask #3
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Incorrect 1 ms 212 KB Output isn't correct
16 Halted 0 ms 0 KB -

Subtask #4
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Incorrect 1 ms 212 KB Output isn't correct
16 Halted 0 ms 0 KB -

Subtask #5
0 / 33.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Incorrect 1 ms 212 KB Output isn't correct
16 Halted 0 ms 0 KB -

Subtask #6
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1734 ms 312 KB Output is correct
2 Correct 1732 ms 316 KB Output is correct
3 Correct 1641 ms 316 KB Output is correct
4 Correct 1662 ms 320 KB Output is correct
5 Correct 1587 ms 320 KB Output is correct
6 Correct 1731 ms 444 KB Output is correct
7 Correct 1637 ms 320 KB Output is correct

Subtask #7
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 4 ms 212 KB Output is correct
6 Correct 47 ms 212 KB Output is correct
7 Correct 189 ms 320 KB Output is correct
8 Correct 643 ms 316 KB Output is correct
9 Correct 666 ms 316 KB Output is correct
10 Correct 498 ms 316 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 113 ms 308 KB Output is correct
13 Correct 79 ms 212 KB Output is correct
14 Correct 80 ms 212 KB Output is correct
15 Correct 996 ms 312 KB Output is correct
16 Correct 1032 ms 312 KB Output is correct
17 Correct 687 ms 316 KB Output is correct
18 Correct 1738 ms 316 KB Output is correct
19 Correct 1704 ms 316 KB Output is correct
20 Correct 978 ms 316 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 0 ms 212 KB Output is correct
26 Correct 0 ms 212 KB Output is correct
27 Correct 0 ms 212 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Incorrect 1 ms 212 KB Output isn't correct
36 Halted 0 ms 0 KB -