oj.uz

답안 #928262

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
928262 2024-02-16T06:25:21 Z pcc Let's Win the Election (JOI22_ho_t3) C++17
100 / 100
 315 ms 1039188 KB 
#include <bits/stdc++.h>
using namespace std;

#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,popcnt,sse4")

#define ll long long
#define pll pair<ll,ll>
#define fs first
#define sc second
#define ld double

const ll inf = 1e12;
const ll mxn = 510;
pll arr[mxn];
ll N,K;
ld dp[mxn][mxn][mxn];
multiset<ll> st;

int main(){
	ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	cin>>N>>K;
	for(int i = 1;i<=N;i++)cin>>arr[i].sc>>arr[i].fs,arr[i].fs = (arr[i].fs == -1?inf:arr[i].fs);
	sort(arr+1,arr+N+1);
	for(auto &i:dp)for(auto &j:i)for(auto &k:j)k = inf;

	for(int i = 0;i<=N;i++)dp[0][i][0] = 0;
	for(int i = 1;i<=N;i++){
		//for(int j = 0;j<=N;j++){
		for(int j = 0;j<=N;j++){
			for(int k = 0;k<=j;k++){
				auto tmp = dp[i-1][j][k];
				dp[i][j][k] = min(dp[i][j][k],tmp+arr[i].sc/ld(j+1));
				dp[i][j][k+1] = min(dp[i][j][k+1],tmp+(arr[i].fs)/ld(k+1));
			}
		}
	}

	/*
	for(int i = 0;i<=N;i++){
		for(int j = 0;j<=i;j++)cout<<i<<' '<<j<<":"<<dp[i][j][j]<<endl;
	}cout<<endl;

   */

	ld ans = inf;
	for(int i = N;i>K;i--){
		st.insert(arr[i].sc);
	}
	for(int i = K;i>=0;i--){
		ll sum = 0,C = K-i;
		for(auto it = st.begin();C&&it != st.end();it++,C--){
			sum += *it;
		}
		for(int j = 0;j<=i;j++){
			ld tans = sum/ld(j+1)+dp[i][j][j];
			ans = min(ans,tans);
		}
		st.insert(arr[i].sc);
	}
	cout<<fixed<<setprecision(20)<<ans<<'\n';
	return 0;
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 149 ms 1038580 KB Output is correct
2 Correct 136 ms 1038924 KB Output is correct
3 Correct 132 ms 1038604 KB Output is correct
4 Correct 130 ms 1038636 KB Output is correct
5 Correct 281 ms 1038800 KB Output is correct
6 Correct 291 ms 1038800 KB Output is correct
7 Correct 275 ms 1039188 KB Output is correct
8 Correct 273 ms 1038648 KB Output is correct
9 Correct 283 ms 1038804 KB Output is correct
10 Correct 295 ms 1038804 KB Output is correct

Subtask #2
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 149 ms 1038580 KB Output is correct
2 Correct 136 ms 1038924 KB Output is correct
3 Correct 132 ms 1038604 KB Output is correct
4 Correct 130 ms 1038636 KB Output is correct
5 Correct 281 ms 1038800 KB Output is correct
6 Correct 291 ms 1038800 KB Output is correct
7 Correct 275 ms 1039188 KB Output is correct
8 Correct 273 ms 1038648 KB Output is correct
9 Correct 283 ms 1038804 KB Output is correct
10 Correct 295 ms 1038804 KB Output is correct
11 Correct 134 ms 1038636 KB Output is correct
12 Correct 279 ms 1038676 KB Output is correct
13 Correct 289 ms 1038816 KB Output is correct
14 Correct 280 ms 1038808 KB Output is correct
15 Correct 285 ms 1038996 KB Output is correct
16 Correct 297 ms 1038672 KB Output is correct
17 Correct 282 ms 1038708 KB Output is correct
18 Correct 279 ms 1038672 KB Output is correct
19 Correct 283 ms 1038756 KB Output is correct
20 Correct 283 ms 1038888 KB Output is correct

Subtask #3
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 131 ms 1038676 KB Output is correct
2 Correct 132 ms 1038676 KB Output is correct
3 Correct 131 ms 1038672 KB Output is correct
4 Correct 162 ms 1038756 KB Output is correct
5 Correct 132 ms 1038676 KB Output is correct
6 Correct 131 ms 1038676 KB Output is correct
7 Correct 134 ms 1038892 KB Output is correct
8 Correct 130 ms 1038676 KB Output is correct
9 Correct 132 ms 1038788 KB Output is correct
10 Correct 129 ms 1038708 KB Output is correct
11 Correct 134 ms 1038564 KB Output is correct
12 Correct 131 ms 1038712 KB Output is correct
13 Correct 139 ms 1038552 KB Output is correct
14 Correct 134 ms 1038556 KB Output is correct
15 Correct 138 ms 1039068 KB Output is correct

Subtask #4
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 131 ms 1038676 KB Output is correct
2 Correct 132 ms 1038676 KB Output is correct
3 Correct 131 ms 1038672 KB Output is correct
4 Correct 162 ms 1038756 KB Output is correct
5 Correct 132 ms 1038676 KB Output is correct
6 Correct 131 ms 1038676 KB Output is correct
7 Correct 134 ms 1038892 KB Output is correct
8 Correct 130 ms 1038676 KB Output is correct
9 Correct 132 ms 1038788 KB Output is correct
10 Correct 129 ms 1038708 KB Output is correct
11 Correct 134 ms 1038564 KB Output is correct
12 Correct 131 ms 1038712 KB Output is correct
13 Correct 139 ms 1038552 KB Output is correct
14 Correct 134 ms 1038556 KB Output is correct
15 Correct 138 ms 1039068 KB Output is correct
16 Correct 151 ms 1038672 KB Output is correct
17 Correct 133 ms 1038808 KB Output is correct
18 Correct 135 ms 1038724 KB Output is correct
19 Correct 131 ms 1038732 KB Output is correct
20 Correct 133 ms 1038676 KB Output is correct
21 Correct 132 ms 1038676 KB Output is correct
22 Correct 134 ms 1038664 KB Output is correct
23 Correct 132 ms 1038780 KB Output is correct
24 Correct 134 ms 1038752 KB Output is correct
25 Correct 132 ms 1038796 KB Output is correct
26 Correct 134 ms 1038616 KB Output is correct
27 Correct 135 ms 1038728 KB Output is correct
28 Correct 133 ms 1038780 KB Output is correct
29 Correct 131 ms 1038680 KB Output is correct
30 Correct 130 ms 1038680 KB Output is correct
31 Correct 134 ms 1038616 KB Output is correct
32 Correct 132 ms 1038672 KB Output is correct
33 Correct 167 ms 1038760 KB Output is correct
34 Correct 131 ms 1038672 KB Output is correct
35 Correct 133 ms 1038672 KB Output is correct
36 Correct 135 ms 1038616 KB Output is correct
37 Correct 133 ms 1038680 KB Output is correct
38 Correct 133 ms 1038640 KB Output is correct
39 Correct 138 ms 1038676 KB Output is correct
40 Correct 135 ms 1038676 KB Output is correct

Subtask #5
33.0 / 33.0

# 결과 실행 시간 메모리 Grader output
1 Correct 131 ms 1038676 KB Output is correct
2 Correct 132 ms 1038676 KB Output is correct
3 Correct 131 ms 1038672 KB Output is correct
4 Correct 162 ms 1038756 KB Output is correct
5 Correct 132 ms 1038676 KB Output is correct
6 Correct 131 ms 1038676 KB Output is correct
7 Correct 134 ms 1038892 KB Output is correct
8 Correct 130 ms 1038676 KB Output is correct
9 Correct 132 ms 1038788 KB Output is correct
10 Correct 129 ms 1038708 KB Output is correct
11 Correct 134 ms 1038564 KB Output is correct
12 Correct 131 ms 1038712 KB Output is correct
13 Correct 139 ms 1038552 KB Output is correct
14 Correct 134 ms 1038556 KB Output is correct
15 Correct 138 ms 1039068 KB Output is correct
16 Correct 151 ms 1038672 KB Output is correct
17 Correct 133 ms 1038808 KB Output is correct
18 Correct 135 ms 1038724 KB Output is correct
19 Correct 131 ms 1038732 KB Output is correct
20 Correct 133 ms 1038676 KB Output is correct
21 Correct 132 ms 1038676 KB Output is correct
22 Correct 134 ms 1038664 KB Output is correct
23 Correct 132 ms 1038780 KB Output is correct
24 Correct 134 ms 1038752 KB Output is correct
25 Correct 132 ms 1038796 KB Output is correct
26 Correct 134 ms 1038616 KB Output is correct
27 Correct 135 ms 1038728 KB Output is correct
28 Correct 133 ms 1038780 KB Output is correct
29 Correct 131 ms 1038680 KB Output is correct
30 Correct 130 ms 1038680 KB Output is correct
31 Correct 134 ms 1038616 KB Output is correct
32 Correct 132 ms 1038672 KB Output is correct
33 Correct 167 ms 1038760 KB Output is correct
34 Correct 131 ms 1038672 KB Output is correct
35 Correct 133 ms 1038672 KB Output is correct
36 Correct 135 ms 1038616 KB Output is correct
37 Correct 133 ms 1038680 KB Output is correct
38 Correct 133 ms 1038640 KB Output is correct
39 Correct 138 ms 1038676 KB Output is correct
40 Correct 135 ms 1038676 KB Output is correct
41 Correct 134 ms 1038900 KB Output is correct
42 Correct 137 ms 1038560 KB Output is correct
43 Correct 135 ms 1038648 KB Output is correct
44 Correct 134 ms 1038672 KB Output is correct
45 Correct 133 ms 1038668 KB Output is correct
46 Correct 134 ms 1038672 KB Output is correct
47 Correct 138 ms 1038800 KB Output is correct
48 Correct 136 ms 1038668 KB Output is correct
49 Correct 135 ms 1038672 KB Output is correct
50 Correct 136 ms 1038676 KB Output is correct
51 Correct 153 ms 1038772 KB Output is correct
52 Correct 134 ms 1038676 KB Output is correct
53 Correct 135 ms 1038680 KB Output is correct
54 Correct 137 ms 1038960 KB Output is correct
55 Correct 135 ms 1038660 KB Output is correct
56 Correct 143 ms 1038676 KB Output is correct
57 Correct 146 ms 1038632 KB Output is correct
58 Correct 139 ms 1038928 KB Output is correct
59 Correct 140 ms 1038676 KB Output is correct
60 Correct 136 ms 1038676 KB Output is correct

Subtask #6
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 311 ms 1038804 KB Output is correct
2 Correct 287 ms 1038672 KB Output is correct
3 Correct 289 ms 1038676 KB Output is correct
4 Correct 280 ms 1038672 KB Output is correct
5 Correct 282 ms 1038760 KB Output is correct
6 Correct 315 ms 1038780 KB Output is correct
7 Correct 290 ms 1038636 KB Output is correct

Subtask #7
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 149 ms 1038580 KB Output is correct
2 Correct 136 ms 1038924 KB Output is correct
3 Correct 132 ms 1038604 KB Output is correct
4 Correct 130 ms 1038636 KB Output is correct
5 Correct 281 ms 1038800 KB Output is correct
6 Correct 291 ms 1038800 KB Output is correct
7 Correct 275 ms 1039188 KB Output is correct
8 Correct 273 ms 1038648 KB Output is correct
9 Correct 283 ms 1038804 KB Output is correct
10 Correct 295 ms 1038804 KB Output is correct
11 Correct 134 ms 1038636 KB Output is correct
12 Correct 279 ms 1038676 KB Output is correct
13 Correct 289 ms 1038816 KB Output is correct
14 Correct 280 ms 1038808 KB Output is correct
15 Correct 285 ms 1038996 KB Output is correct
16 Correct 297 ms 1038672 KB Output is correct
17 Correct 282 ms 1038708 KB Output is correct
18 Correct 279 ms 1038672 KB Output is correct
19 Correct 283 ms 1038756 KB Output is correct
20 Correct 283 ms 1038888 KB Output is correct
21 Correct 131 ms 1038676 KB Output is correct
22 Correct 132 ms 1038676 KB Output is correct
23 Correct 131 ms 1038672 KB Output is correct
24 Correct 162 ms 1038756 KB Output is correct
25 Correct 132 ms 1038676 KB Output is correct
26 Correct 131 ms 1038676 KB Output is correct
27 Correct 134 ms 1038892 KB Output is correct
28 Correct 130 ms 1038676 KB Output is correct
29 Correct 132 ms 1038788 KB Output is correct
30 Correct 129 ms 1038708 KB Output is correct
31 Correct 134 ms 1038564 KB Output is correct
32 Correct 131 ms 1038712 KB Output is correct
33 Correct 139 ms 1038552 KB Output is correct
34 Correct 134 ms 1038556 KB Output is correct
35 Correct 138 ms 1039068 KB Output is correct
36 Correct 151 ms 1038672 KB Output is correct
37 Correct 133 ms 1038808 KB Output is correct
38 Correct 135 ms 1038724 KB Output is correct
39 Correct 131 ms 1038732 KB Output is correct
40 Correct 133 ms 1038676 KB Output is correct
41 Correct 132 ms 1038676 KB Output is correct
42 Correct 134 ms 1038664 KB Output is correct
43 Correct 132 ms 1038780 KB Output is correct
44 Correct 134 ms 1038752 KB Output is correct
45 Correct 132 ms 1038796 KB Output is correct
46 Correct 134 ms 1038616 KB Output is correct
47 Correct 135 ms 1038728 KB Output is correct
48 Correct 133 ms 1038780 KB Output is correct
49 Correct 131 ms 1038680 KB Output is correct
50 Correct 130 ms 1038680 KB Output is correct
51 Correct 134 ms 1038616 KB Output is correct
52 Correct 132 ms 1038672 KB Output is correct
53 Correct 167 ms 1038760 KB Output is correct
54 Correct 131 ms 1038672 KB Output is correct
55 Correct 133 ms 1038672 KB Output is correct
56 Correct 135 ms 1038616 KB Output is correct
57 Correct 133 ms 1038680 KB Output is correct
58 Correct 133 ms 1038640 KB Output is correct
59 Correct 138 ms 1038676 KB Output is correct
60 Correct 135 ms 1038676 KB Output is correct
61 Correct 134 ms 1038900 KB Output is correct
62 Correct 137 ms 1038560 KB Output is correct
63 Correct 135 ms 1038648 KB Output is correct
64 Correct 134 ms 1038672 KB Output is correct
65 Correct 133 ms 1038668 KB Output is correct
66 Correct 134 ms 1038672 KB Output is correct
67 Correct 138 ms 1038800 KB Output is correct
68 Correct 136 ms 1038668 KB Output is correct
69 Correct 135 ms 1038672 KB Output is correct
70 Correct 136 ms 1038676 KB Output is correct
71 Correct 153 ms 1038772 KB Output is correct
72 Correct 134 ms 1038676 KB Output is correct
73 Correct 135 ms 1038680 KB Output is correct
74 Correct 137 ms 1038960 KB Output is correct
75 Correct 135 ms 1038660 KB Output is correct
76 Correct 143 ms 1038676 KB Output is correct
77 Correct 146 ms 1038632 KB Output is correct
78 Correct 139 ms 1038928 KB Output is correct
79 Correct 140 ms 1038676 KB Output is correct
80 Correct 136 ms 1038676 KB Output is correct
81 Correct 311 ms 1038804 KB Output is correct
82 Correct 287 ms 1038672 KB Output is correct
83 Correct 289 ms 1038676 KB Output is correct
84 Correct 280 ms 1038672 KB Output is correct
85 Correct 282 ms 1038760 KB Output is correct
86 Correct 315 ms 1038780 KB Output is correct
87 Correct 290 ms 1038636 KB Output is correct
88 Correct 298 ms 1038804 KB Output is correct
89 Correct 277 ms 1038740 KB Output is correct
90 Correct 279 ms 1038808 KB Output is correct
91 Correct 281 ms 1038812 KB Output is correct
92 Correct 281 ms 1038804 KB Output is correct
93 Correct 293 ms 1038808 KB Output is correct
94 Correct 282 ms 1038800 KB Output is correct
95 Correct 288 ms 1038864 KB Output is correct
96 Correct 281 ms 1038672 KB Output is correct
97 Correct 280 ms 1038676 KB Output is correct
98 Correct 277 ms 1038784 KB Output is correct
99 Correct 288 ms 1038672 KB Output is correct
100 Correct 303 ms 1038804 KB Output is correct
101 Correct 305 ms 1038812 KB Output is correct
102 Correct 276 ms 1038804 KB Output is correct
103 Correct 315 ms 1038676 KB Output is correct
104 Correct 282 ms 1038584 KB Output is correct
105 Correct 294 ms 1038808 KB Output is correct