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답안 #718967

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
718967 2023-04-05T07:55:03 Z Kalashnikov Let's Win the Election (JOI22_ho_t3) C++17
100 / 100
 1589 ms 994708 KB 
#include <bits/stdc++.h>
 
#define ios ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0)
#define file(s) if (fopen(s".in", "r")) freopen(s".in", "r", stdin), freopen(s".out", "w", stdout)
#define all(a) a.begin() , a.end()
#define F first
#define S second
 
using namespace std;
using ll = long long;
 
const int N = 500+5 , inf = 2e9 + 7;
const ll INF = 1e18 ,   mod = 1e9+7 , P = 6547;

int a[N], b[N];

double dp[N][N][N];

void mini(double &a, double b) {
	a = min(a, b);
}

void solve(int tc) {
	int n , k;
	cin >> n >> k;
	vector<pair<int,int>> vec;
	for(int i = 1; i <= n; i ++) {
		cin >> a[i] >> b[i];
		if(b[i] == -1) b[i] = inf;
		vec.push_back({b[i] , a[i]});
	}
	sort(all(vec));
	for(int i = 1; i <= n; i ++) {
		a[i] = vec[i-1].S;
		b[i] = vec[i-1].F;
	}
	for(int i = 0; i <= n; i ++) {
		for(int j = 0; j <= n; j ++) {
			for(int k = 0; k <= n; k ++) {
				dp[i][j][k] = INF;
			}
		}
	}
	for(int i = 0; i <= n; i ++) dp[i][0][0] = 0;
	double ans = INF;
	for(int l = 0; l <= n; l ++) { // в конце сторонников
		for(int i = 0; i < n; i ++) {
			for(int j = 0; j <= i; j ++) {
				mini(dp[i+1][j][l], dp[i][j][l]);
				mini(dp[i+1][j+1][l], dp[i][j][l] + a[i+1]/double(l+1));
				if(i == j)
				for(int x = 0; x <= min(j, l); x ++) {
					mini(dp[i+1][j][x], dp[i][j][x]);
					mini(dp[i+1][j+1][x], dp[i][j][x] + a[i+1]/double(l+1));
					if(b[i+1] != inf)
						mini(dp[i+1][j+1][x+1], dp[i][j][x] + b[i+1]/double(x+1));
				}
			}
		}
		ans = min(ans, dp[n][k][l]);
	}
	cout << fixed << setprecision(6) << ans;
}
/*
*/
main() {
    ios;
    int tt = 1 , tc = 0;
    // cin >> tt;
    while(tt --) {
        solve(++tc);
    }
    return 0;
}

Compilation message

Main.cpp:66:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   66 | main() {
      | ^~~~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1306 ms 994532 KB Output is correct
6 Correct 1379 ms 994576 KB Output is correct
7 Correct 1336 ms 994572 KB Output is correct
8 Correct 1316 ms 994588 KB Output is correct
9 Correct 1452 ms 994556 KB Output is correct
10 Correct 1331 ms 994544 KB Output is correct

Subtask #2
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1306 ms 994532 KB Output is correct
6 Correct 1379 ms 994576 KB Output is correct
7 Correct 1336 ms 994572 KB Output is correct
8 Correct 1316 ms 994588 KB Output is correct
9 Correct 1452 ms 994556 KB Output is correct
10 Correct 1331 ms 994544 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1378 ms 994532 KB Output is correct
13 Correct 1308 ms 994596 KB Output is correct
14 Correct 1379 ms 994632 KB Output is correct
15 Correct 1340 ms 994532 KB Output is correct
16 Correct 1409 ms 994536 KB Output is correct
17 Correct 1360 ms 994656 KB Output is correct
18 Correct 1364 ms 994536 KB Output is correct
19 Correct 1309 ms 994540 KB Output is correct
20 Correct 1340 ms 994540 KB Output is correct

Subtask #3
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 596 KB Output is correct
2 Correct 1 ms 596 KB Output is correct
3 Correct 1 ms 596 KB Output is correct
4 Correct 1 ms 596 KB Output is correct
5 Correct 1 ms 596 KB Output is correct
6 Correct 1 ms 596 KB Output is correct
7 Correct 1 ms 552 KB Output is correct
8 Correct 0 ms 596 KB Output is correct
9 Correct 1 ms 596 KB Output is correct
10 Correct 1 ms 596 KB Output is correct
11 Correct 0 ms 596 KB Output is correct
12 Correct 1 ms 596 KB Output is correct
13 Correct 0 ms 596 KB Output is correct
14 Correct 0 ms 468 KB Output is correct
15 Correct 0 ms 596 KB Output is correct

Subtask #4
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 596 KB Output is correct
2 Correct 1 ms 596 KB Output is correct
3 Correct 1 ms 596 KB Output is correct
4 Correct 1 ms 596 KB Output is correct
5 Correct 1 ms 596 KB Output is correct
6 Correct 1 ms 596 KB Output is correct
7 Correct 1 ms 552 KB Output is correct
8 Correct 0 ms 596 KB Output is correct
9 Correct 1 ms 596 KB Output is correct
10 Correct 1 ms 596 KB Output is correct
11 Correct 0 ms 596 KB Output is correct
12 Correct 1 ms 596 KB Output is correct
13 Correct 0 ms 596 KB Output is correct
14 Correct 0 ms 468 KB Output is correct
15 Correct 0 ms 596 KB Output is correct
16 Correct 1 ms 2132 KB Output is correct
17 Correct 1 ms 2132 KB Output is correct
18 Correct 1 ms 2132 KB Output is correct
19 Correct 2 ms 2152 KB Output is correct
20 Correct 1 ms 2132 KB Output is correct
21 Correct 1 ms 2132 KB Output is correct
22 Correct 1 ms 2132 KB Output is correct
23 Correct 1 ms 2132 KB Output is correct
24 Correct 1 ms 2132 KB Output is correct
25 Correct 1 ms 2132 KB Output is correct
26 Correct 1 ms 2132 KB Output is correct
27 Correct 1 ms 2132 KB Output is correct
28 Correct 1 ms 2132 KB Output is correct
29 Correct 1 ms 2132 KB Output is correct
30 Correct 1 ms 2132 KB Output is correct
31 Correct 1 ms 2132 KB Output is correct
32 Correct 1 ms 2132 KB Output is correct
33 Correct 1 ms 2132 KB Output is correct
34 Correct 1 ms 2132 KB Output is correct
35 Correct 1 ms 2132 KB Output is correct
36 Correct 2 ms 2132 KB Output is correct
37 Correct 1 ms 2132 KB Output is correct
38 Correct 1 ms 2132 KB Output is correct
39 Correct 1 ms 2132 KB Output is correct
40 Correct 1 ms 2132 KB Output is correct

Subtask #5
33.0 / 33.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 596 KB Output is correct
2 Correct 1 ms 596 KB Output is correct
3 Correct 1 ms 596 KB Output is correct
4 Correct 1 ms 596 KB Output is correct
5 Correct 1 ms 596 KB Output is correct
6 Correct 1 ms 596 KB Output is correct
7 Correct 1 ms 552 KB Output is correct
8 Correct 0 ms 596 KB Output is correct
9 Correct 1 ms 596 KB Output is correct
10 Correct 1 ms 596 KB Output is correct
11 Correct 0 ms 596 KB Output is correct
12 Correct 1 ms 596 KB Output is correct
13 Correct 0 ms 596 KB Output is correct
14 Correct 0 ms 468 KB Output is correct
15 Correct 0 ms 596 KB Output is correct
16 Correct 1 ms 2132 KB Output is correct
17 Correct 1 ms 2132 KB Output is correct
18 Correct 1 ms 2132 KB Output is correct
19 Correct 2 ms 2152 KB Output is correct
20 Correct 1 ms 2132 KB Output is correct
21 Correct 1 ms 2132 KB Output is correct
22 Correct 1 ms 2132 KB Output is correct
23 Correct 1 ms 2132 KB Output is correct
24 Correct 1 ms 2132 KB Output is correct
25 Correct 1 ms 2132 KB Output is correct
26 Correct 1 ms 2132 KB Output is correct
27 Correct 1 ms 2132 KB Output is correct
28 Correct 1 ms 2132 KB Output is correct
29 Correct 1 ms 2132 KB Output is correct
30 Correct 1 ms 2132 KB Output is correct
31 Correct 1 ms 2132 KB Output is correct
32 Correct 1 ms 2132 KB Output is correct
33 Correct 1 ms 2132 KB Output is correct
34 Correct 1 ms 2132 KB Output is correct
35 Correct 1 ms 2132 KB Output is correct
36 Correct 2 ms 2132 KB Output is correct
37 Correct 1 ms 2132 KB Output is correct
38 Correct 1 ms 2132 KB Output is correct
39 Correct 1 ms 2132 KB Output is correct
40 Correct 1 ms 2132 KB Output is correct
41 Correct 25 ms 41064 KB Output is correct
42 Correct 22 ms 41044 KB Output is correct
43 Correct 24 ms 41020 KB Output is correct
44 Correct 24 ms 41036 KB Output is correct
45 Correct 26 ms 41044 KB Output is correct
46 Correct 21 ms 41044 KB Output is correct
47 Correct 22 ms 41060 KB Output is correct
48 Correct 23 ms 41044 KB Output is correct
49 Correct 22 ms 41044 KB Output is correct
50 Correct 23 ms 41036 KB Output is correct
51 Correct 23 ms 41044 KB Output is correct
52 Correct 23 ms 41044 KB Output is correct
53 Correct 24 ms 41044 KB Output is correct
54 Correct 23 ms 41008 KB Output is correct
55 Correct 22 ms 41020 KB Output is correct
56 Correct 23 ms 41044 KB Output is correct
57 Correct 25 ms 41136 KB Output is correct
58 Correct 23 ms 41044 KB Output is correct
59 Correct 24 ms 41040 KB Output is correct
60 Correct 25 ms 41084 KB Output is correct

Subtask #6
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1333 ms 994584 KB Output is correct
2 Correct 1436 ms 994708 KB Output is correct
3 Correct 1383 ms 994668 KB Output is correct
4 Correct 1371 ms 994568 KB Output is correct
5 Correct 1398 ms 994496 KB Output is correct
6 Correct 1312 ms 994540 KB Output is correct
7 Correct 1385 ms 994572 KB Output is correct

Subtask #7
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1306 ms 994532 KB Output is correct
6 Correct 1379 ms 994576 KB Output is correct
7 Correct 1336 ms 994572 KB Output is correct
8 Correct 1316 ms 994588 KB Output is correct
9 Correct 1452 ms 994556 KB Output is correct
10 Correct 1331 ms 994544 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1378 ms 994532 KB Output is correct
13 Correct 1308 ms 994596 KB Output is correct
14 Correct 1379 ms 994632 KB Output is correct
15 Correct 1340 ms 994532 KB Output is correct
16 Correct 1409 ms 994536 KB Output is correct
17 Correct 1360 ms 994656 KB Output is correct
18 Correct 1364 ms 994536 KB Output is correct
19 Correct 1309 ms 994540 KB Output is correct
20 Correct 1340 ms 994540 KB Output is correct
21 Correct 1 ms 596 KB Output is correct
22 Correct 1 ms 596 KB Output is correct
23 Correct 1 ms 596 KB Output is correct
24 Correct 1 ms 596 KB Output is correct
25 Correct 1 ms 596 KB Output is correct
26 Correct 1 ms 596 KB Output is correct
27 Correct 1 ms 552 KB Output is correct
28 Correct 0 ms 596 KB Output is correct
29 Correct 1 ms 596 KB Output is correct
30 Correct 1 ms 596 KB Output is correct
31 Correct 0 ms 596 KB Output is correct
32 Correct 1 ms 596 KB Output is correct
33 Correct 0 ms 596 KB Output is correct
34 Correct 0 ms 468 KB Output is correct
35 Correct 0 ms 596 KB Output is correct
36 Correct 1 ms 2132 KB Output is correct
37 Correct 1 ms 2132 KB Output is correct
38 Correct 1 ms 2132 KB Output is correct
39 Correct 2 ms 2152 KB Output is correct
40 Correct 1 ms 2132 KB Output is correct
41 Correct 1 ms 2132 KB Output is correct
42 Correct 1 ms 2132 KB Output is correct
43 Correct 1 ms 2132 KB Output is correct
44 Correct 1 ms 2132 KB Output is correct
45 Correct 1 ms 2132 KB Output is correct
46 Correct 1 ms 2132 KB Output is correct
47 Correct 1 ms 2132 KB Output is correct
48 Correct 1 ms 2132 KB Output is correct
49 Correct 1 ms 2132 KB Output is correct
50 Correct 1 ms 2132 KB Output is correct
51 Correct 1 ms 2132 KB Output is correct
52 Correct 1 ms 2132 KB Output is correct
53 Correct 1 ms 2132 KB Output is correct
54 Correct 1 ms 2132 KB Output is correct
55 Correct 1 ms 2132 KB Output is correct
56 Correct 2 ms 2132 KB Output is correct
57 Correct 1 ms 2132 KB Output is correct
58 Correct 1 ms 2132 KB Output is correct
59 Correct 1 ms 2132 KB Output is correct
60 Correct 1 ms 2132 KB Output is correct
61 Correct 25 ms 41064 KB Output is correct
62 Correct 22 ms 41044 KB Output is correct
63 Correct 24 ms 41020 KB Output is correct
64 Correct 24 ms 41036 KB Output is correct
65 Correct 26 ms 41044 KB Output is correct
66 Correct 21 ms 41044 KB Output is correct
67 Correct 22 ms 41060 KB Output is correct
68 Correct 23 ms 41044 KB Output is correct
69 Correct 22 ms 41044 KB Output is correct
70 Correct 23 ms 41036 KB Output is correct
71 Correct 23 ms 41044 KB Output is correct
72 Correct 23 ms 41044 KB Output is correct
73 Correct 24 ms 41044 KB Output is correct
74 Correct 23 ms 41008 KB Output is correct
75 Correct 22 ms 41020 KB Output is correct
76 Correct 23 ms 41044 KB Output is correct
77 Correct 25 ms 41136 KB Output is correct
78 Correct 23 ms 41044 KB Output is correct
79 Correct 24 ms 41040 KB Output is correct
80 Correct 25 ms 41084 KB Output is correct
81 Correct 1333 ms 994584 KB Output is correct
82 Correct 1436 ms 994708 KB Output is correct
83 Correct 1383 ms 994668 KB Output is correct
84 Correct 1371 ms 994568 KB Output is correct
85 Correct 1398 ms 994496 KB Output is correct
86 Correct 1312 ms 994540 KB Output is correct
87 Correct 1385 ms 994572 KB Output is correct
88 Correct 1589 ms 994532 KB Output is correct
89 Correct 1304 ms 994608 KB Output is correct
90 Correct 1344 ms 994568 KB Output is correct
91 Correct 1340 ms 994592 KB Output is correct
92 Correct 1334 ms 994536 KB Output is correct
93 Correct 1375 ms 994536 KB Output is correct
94 Correct 1312 ms 994540 KB Output is correct
95 Correct 1321 ms 994564 KB Output is correct
96 Correct 1338 ms 994540 KB Output is correct
97 Correct 1349 ms 994656 KB Output is correct
98 Correct 1347 ms 994532 KB Output is correct
99 Correct 1349 ms 994424 KB Output is correct
100 Correct 1424 ms 994536 KB Output is correct
101 Correct 1464 ms 994628 KB Output is correct
102 Correct 1561 ms 994540 KB Output is correct
103 Correct 1587 ms 994536 KB Output is correct
104 Correct 1428 ms 994540 KB Output is correct
105 Correct 1534 ms 994536 KB Output is correct