oj.uz

답안 #866577

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
866577 2023-10-26T12:38:06 Z NotLinux Let's Win the Election (JOI22_ho_t3) C++17
100 / 100
 1834 ms 4440 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long
const int N = 505;
const int inf = 1ll << 60;
int n,k,a[N],b[N];
long double eval(int x){
	if((k-x) < 0){
		return inf;
	}
	long double dp[n+2][n+2];
	for(int i = 0;i<=n;i++){
		for(int j = 0;j<=n;j++){
			dp[i][j] = 1e18 + 7;
		}
	}
	dp[0][0] = 0;
	for(int i = 0;i<n;i++){
		for(int j = 0;j<=n;j++){
			//ai alır
			dp[i+1][j+1] = min(dp[i+1][j+1] , dp[i][j] + (long double)a[i] / (long double)(x+1));
			//bi  / almaz
			if((i+1-j) <= x){
				dp[i+1][j] = min(dp[i+1][j] , dp[i][j] + (long double)b[i] / (long double)(i+1-j));
			}
			else {
				dp[i+1][j] = min(dp[i+1][j] , dp[i][j]);
			}
		}
	}
	return dp[n][k-x];
}
void solve(){
	cin >> n >> k;
	pair < int , int > arr[n];
	int sayac = n;
	for(int i = 0;i<n;i++){
		cin >> arr[i].second >> arr[i].first;
		if(arr[i].first == -1){
			arr[i].first = inf;
			sayac--;
		}
	}
	sort(arr , arr + n);
	for(int i = 0;i<n;i++){
		a[i] = arr[i].second;
		b[i] = arr[i].first;
	}
	long double ans = 1e18 + 7;
	for(int i = 0;i<=sayac;i++){
		ans = min(ans , eval(i));
	}
	cout << fixed << setprecision(9) << ans << endl;
}
signed main(){
	ios_base::sync_with_stdio(0);cin.tie(0);
	int testcase = 1;//cin >> testcase;
	while(testcase--)solve();
}
/*

obs1 : almadıklarımdan ilk x tanesini kesin alcam
dp[i][j] -> şimdiye kadar kaç tane aldım

*/

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 6 ms 4344 KB Output is correct
6 Correct 6 ms 4184 KB Output is correct
7 Correct 6 ms 4188 KB Output is correct
8 Correct 6 ms 4188 KB Output is correct
9 Correct 6 ms 4188 KB Output is correct
10 Correct 6 ms 4188 KB Output is correct

Subtask #2
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 6 ms 4344 KB Output is correct
6 Correct 6 ms 4184 KB Output is correct
7 Correct 6 ms 4188 KB Output is correct
8 Correct 6 ms 4188 KB Output is correct
9 Correct 6 ms 4188 KB Output is correct
10 Correct 6 ms 4188 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 528 ms 4188 KB Output is correct
13 Correct 535 ms 4388 KB Output is correct
14 Correct 359 ms 4384 KB Output is correct
15 Correct 1239 ms 4392 KB Output is correct
16 Correct 1051 ms 4396 KB Output is correct
17 Correct 349 ms 4404 KB Output is correct
18 Correct 1814 ms 4388 KB Output is correct
19 Correct 1121 ms 4404 KB Output is correct
20 Correct 321 ms 4184 KB Output is correct

Subtask #3
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct

Subtask #4
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 456 KB Output is correct
24 Correct 0 ms 344 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 460 KB Output is correct
30 Correct 0 ms 344 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 456 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 1 ms 348 KB Output is correct
38 Correct 0 ms 344 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 0 ms 464 KB Output is correct

Subtask #5
33.0 / 33.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 456 KB Output is correct
24 Correct 0 ms 344 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 460 KB Output is correct
30 Correct 0 ms 344 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 456 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 1 ms 348 KB Output is correct
38 Correct 0 ms 344 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 0 ms 464 KB Output is correct
41 Correct 3 ms 604 KB Output is correct
42 Correct 3 ms 604 KB Output is correct
43 Correct 5 ms 600 KB Output is correct
44 Correct 5 ms 464 KB Output is correct
45 Correct 8 ms 600 KB Output is correct
46 Correct 8 ms 604 KB Output is correct
47 Correct 11 ms 604 KB Output is correct
48 Correct 10 ms 604 KB Output is correct
49 Correct 16 ms 604 KB Output is correct
50 Correct 12 ms 604 KB Output is correct
51 Correct 15 ms 604 KB Output is correct
52 Correct 12 ms 468 KB Output is correct
53 Correct 10 ms 604 KB Output is correct
54 Correct 10 ms 624 KB Output is correct
55 Correct 10 ms 600 KB Output is correct
56 Correct 10 ms 604 KB Output is correct
57 Correct 10 ms 604 KB Output is correct
58 Correct 10 ms 604 KB Output is correct
59 Correct 10 ms 604 KB Output is correct
60 Correct 10 ms 604 KB Output is correct

Subtask #6
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1773 ms 4396 KB Output is correct
2 Correct 1814 ms 4392 KB Output is correct
3 Correct 1834 ms 4388 KB Output is correct
4 Correct 1763 ms 4396 KB Output is correct
5 Correct 1770 ms 4432 KB Output is correct
6 Correct 1769 ms 4392 KB Output is correct
7 Correct 1779 ms 4392 KB Output is correct

Subtask #7
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 6 ms 4344 KB Output is correct
6 Correct 6 ms 4184 KB Output is correct
7 Correct 6 ms 4188 KB Output is correct
8 Correct 6 ms 4188 KB Output is correct
9 Correct 6 ms 4188 KB Output is correct
10 Correct 6 ms 4188 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 528 ms 4188 KB Output is correct
13 Correct 535 ms 4388 KB Output is correct
14 Correct 359 ms 4384 KB Output is correct
15 Correct 1239 ms 4392 KB Output is correct
16 Correct 1051 ms 4396 KB Output is correct
17 Correct 349 ms 4404 KB Output is correct
18 Correct 1814 ms 4388 KB Output is correct
19 Correct 1121 ms 4404 KB Output is correct
20 Correct 321 ms 4184 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 344 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 344 KB Output is correct
34 Correct 0 ms 344 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 0 ms 348 KB Output is correct
42 Correct 1 ms 348 KB Output is correct
43 Correct 1 ms 456 KB Output is correct
44 Correct 0 ms 344 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 1 ms 348 KB Output is correct
49 Correct 0 ms 460 KB Output is correct
50 Correct 0 ms 344 KB Output is correct
51 Correct 1 ms 348 KB Output is correct
52 Correct 0 ms 348 KB Output is correct
53 Correct 0 ms 348 KB Output is correct
54 Correct 0 ms 456 KB Output is correct
55 Correct 0 ms 348 KB Output is correct
56 Correct 1 ms 348 KB Output is correct
57 Correct 1 ms 348 KB Output is correct
58 Correct 0 ms 344 KB Output is correct
59 Correct 0 ms 348 KB Output is correct
60 Correct 0 ms 464 KB Output is correct
61 Correct 3 ms 604 KB Output is correct
62 Correct 3 ms 604 KB Output is correct
63 Correct 5 ms 600 KB Output is correct
64 Correct 5 ms 464 KB Output is correct
65 Correct 8 ms 600 KB Output is correct
66 Correct 8 ms 604 KB Output is correct
67 Correct 11 ms 604 KB Output is correct
68 Correct 10 ms 604 KB Output is correct
69 Correct 16 ms 604 KB Output is correct
70 Correct 12 ms 604 KB Output is correct
71 Correct 15 ms 604 KB Output is correct
72 Correct 12 ms 468 KB Output is correct
73 Correct 10 ms 604 KB Output is correct
74 Correct 10 ms 624 KB Output is correct
75 Correct 10 ms 600 KB Output is correct
76 Correct 10 ms 604 KB Output is correct
77 Correct 10 ms 604 KB Output is correct
78 Correct 10 ms 604 KB Output is correct
79 Correct 10 ms 604 KB Output is correct
80 Correct 10 ms 604 KB Output is correct
81 Correct 1773 ms 4396 KB Output is correct
82 Correct 1814 ms 4392 KB Output is correct
83 Correct 1834 ms 4388 KB Output is correct
84 Correct 1763 ms 4396 KB Output is correct
85 Correct 1770 ms 4432 KB Output is correct
86 Correct 1769 ms 4392 KB Output is correct
87 Correct 1779 ms 4392 KB Output is correct
88 Correct 181 ms 4184 KB Output is correct
89 Correct 182 ms 4440 KB Output is correct
90 Correct 440 ms 4184 KB Output is correct
91 Correct 443 ms 4408 KB Output is correct
92 Correct 882 ms 4188 KB Output is correct
93 Correct 887 ms 4396 KB Output is correct
94 Correct 1403 ms 4188 KB Output is correct
95 Correct 1332 ms 4388 KB Output is correct
96 Correct 1585 ms 4412 KB Output is correct
97 Correct 1652 ms 4392 KB Output is correct
98 Correct 1236 ms 4392 KB Output is correct
99 Correct 1264 ms 4412 KB Output is correct
100 Correct 1280 ms 4388 KB Output is correct
101 Correct 1237 ms 4392 KB Output is correct
102 Correct 1262 ms 4392 KB Output is correct
103 Correct 1278 ms 4432 KB Output is correct
104 Correct 1244 ms 4392 KB Output is correct
105 Correct 1275 ms 4392 KB Output is correct