oj.uz

Submission #528151

# Submission time Handle Problem Language Result Execution time Memory
528151 2022-02-19T13:09:47 Z 8e7 Let's Win the Election (JOI22_ho_t3) C++17
100 / 100
 305 ms 4300 KB 
//Challenge: Accepted
#include <bits/stdc++.h>
using namespace std;
#ifdef zisk
void debug(){cout << endl;}
template<class T, class ... U> void debug(T a, U ... b){cout << a << " ", debug(b...);}
template<class T> void pary(T l, T r) {
	while (l != r) cout << *l << " ", l++;
	cout << endl;
}
#else
#define debug(...) 0
#define pary(...) 0
#endif
#define ll long long
#define maxn 505
#define pii pair<int, int>
#define ff first
#define ss second
#define io ios_base::sync_with_stdio(0);cin.tie(0);
pii a[maxn];
const double inf = 1e9;
double dp[maxn][maxn];
ll mi[maxn][maxn];
int main() {
	io
	int n, k;
	cin >> n >> k;

	for (int i = 0;i < n;i++) {
		cin >> a[i].ff >> a[i].ss; 	
		if (a[i].ss == -1) a[i].ss = 1<<30;
	}
	sort(a, a + n, [&] (pii x, pii y){return (x.ss == y.ss ? x.ff > y.ff : x.ss < y.ss);});
	for (int i = n - 1;i >= 0;i--) {
		vector<pii> b;
		for (int j = n-1;j >= i;j--) b.push_back(a[j]);
		sort(b.begin(), b.end());
		for (int j = 0;j < b.size();j++) mi[i][j+1] = mi[i][j] + b[j].ff;
	}
	double ans = 1e9;
	ans = mi[0][k];
	for (int i = 0;i <= k;i++) {
		
		for (int x = 0;x <= k;x++) {
			for (int y = 0;y <= k;y++) dp[x][y] = inf;
		}
		dp[0][0] = 0;
		for (int x = 1;x <= k;x++) {
			for (int y = 0;y <= k;y++) {
				dp[x][y] = dp[x-1][y] + (double(a[x-1].ff)/(i+1));
				if (y) {
					dp[x][y] = min(dp[x][y], dp[x-1][y-1] + (double)a[x-1].ss/y);
				}
			}
			ans = min(ans, dp[x][i] + (double(mi[x][k - x])) / (i+1));	
		}
	}
	cout << fixed << setprecision(10) << ans << "\n";
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:39:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   39 |   for (int j = 0;j < b.size();j++) mi[i][j+1] = mi[i][j] + b[j].ff;
      |                  ~~^~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 5 ms 2380 KB Output is correct
6 Correct 9 ms 2708 KB Output is correct
7 Correct 43 ms 3288 KB Output is correct
8 Correct 110 ms 3768 KB Output is correct
9 Correct 266 ms 4260 KB Output is correct
10 Correct 97 ms 3660 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 5 ms 2380 KB Output is correct
6 Correct 9 ms 2708 KB Output is correct
7 Correct 43 ms 3288 KB Output is correct
8 Correct 110 ms 3768 KB Output is correct
9 Correct 266 ms 4260 KB Output is correct
10 Correct 97 ms 3660 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 11 ms 2900 KB Output is correct
13 Correct 12 ms 2808 KB Output is correct
14 Correct 11 ms 2892 KB Output is correct
15 Correct 91 ms 3672 KB Output is correct
16 Correct 110 ms 3660 KB Output is correct
17 Correct 100 ms 3668 KB Output is correct
18 Correct 262 ms 4264 KB Output is correct
19 Correct 260 ms 4300 KB Output is correct
20 Correct 270 ms 4268 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct

Subtask #4
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 0 ms 332 KB Output is correct
19 Correct 1 ms 460 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 1 ms 460 KB Output is correct
22 Correct 1 ms 460 KB Output is correct
23 Correct 1 ms 460 KB Output is correct
24 Correct 1 ms 460 KB Output is correct
25 Correct 0 ms 460 KB Output is correct
26 Correct 0 ms 460 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 332 KB Output is correct
29 Correct 0 ms 332 KB Output is correct
30 Correct 0 ms 332 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 1 ms 404 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 1 ms 332 KB Output is correct
35 Correct 1 ms 460 KB Output is correct
36 Correct 1 ms 460 KB Output is correct
37 Correct 1 ms 460 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 0 ms 332 KB Output is correct

Subtask #5
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 0 ms 332 KB Output is correct
19 Correct 1 ms 460 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 1 ms 460 KB Output is correct
22 Correct 1 ms 460 KB Output is correct
23 Correct 1 ms 460 KB Output is correct
24 Correct 1 ms 460 KB Output is correct
25 Correct 0 ms 460 KB Output is correct
26 Correct 0 ms 460 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 332 KB Output is correct
29 Correct 0 ms 332 KB Output is correct
30 Correct 0 ms 332 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 1 ms 404 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 1 ms 332 KB Output is correct
35 Correct 1 ms 460 KB Output is correct
36 Correct 1 ms 460 KB Output is correct
37 Correct 1 ms 460 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 0 ms 332 KB Output is correct
41 Correct 1 ms 716 KB Output is correct
42 Correct 1 ms 716 KB Output is correct
43 Correct 1 ms 844 KB Output is correct
44 Correct 1 ms 716 KB Output is correct
45 Correct 1 ms 844 KB Output is correct
46 Correct 1 ms 844 KB Output is correct
47 Correct 2 ms 972 KB Output is correct
48 Correct 1 ms 972 KB Output is correct
49 Correct 3 ms 972 KB Output is correct
50 Correct 2 ms 972 KB Output is correct
51 Correct 4 ms 1100 KB Output is correct
52 Correct 4 ms 1152 KB Output is correct
53 Correct 2 ms 972 KB Output is correct
54 Correct 2 ms 972 KB Output is correct
55 Correct 3 ms 972 KB Output is correct
56 Correct 2 ms 972 KB Output is correct
57 Correct 2 ms 972 KB Output is correct
58 Correct 2 ms 972 KB Output is correct
59 Correct 1 ms 972 KB Output is correct
60 Correct 1 ms 972 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 269 ms 4268 KB Output is correct
2 Correct 305 ms 4264 KB Output is correct
3 Correct 266 ms 4268 KB Output is correct
4 Correct 263 ms 4268 KB Output is correct
5 Correct 283 ms 4264 KB Output is correct
6 Correct 290 ms 4268 KB Output is correct
7 Correct 259 ms 4280 KB Output is correct

Subtask #7
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 5 ms 2380 KB Output is correct
6 Correct 9 ms 2708 KB Output is correct
7 Correct 43 ms 3288 KB Output is correct
8 Correct 110 ms 3768 KB Output is correct
9 Correct 266 ms 4260 KB Output is correct
10 Correct 97 ms 3660 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 11 ms 2900 KB Output is correct
13 Correct 12 ms 2808 KB Output is correct
14 Correct 11 ms 2892 KB Output is correct
15 Correct 91 ms 3672 KB Output is correct
16 Correct 110 ms 3660 KB Output is correct
17 Correct 100 ms 3668 KB Output is correct
18 Correct 262 ms 4264 KB Output is correct
19 Correct 260 ms 4300 KB Output is correct
20 Correct 270 ms 4268 KB Output is correct
21 Correct 0 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 0 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 0 ms 332 KB Output is correct
26 Correct 0 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 0 ms 332 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 1 ms 384 KB Output is correct
34 Correct 1 ms 332 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 1 ms 332 KB Output is correct
37 Correct 1 ms 332 KB Output is correct
38 Correct 0 ms 332 KB Output is correct
39 Correct 1 ms 460 KB Output is correct
40 Correct 1 ms 332 KB Output is correct
41 Correct 1 ms 460 KB Output is correct
42 Correct 1 ms 460 KB Output is correct
43 Correct 1 ms 460 KB Output is correct
44 Correct 1 ms 460 KB Output is correct
45 Correct 0 ms 460 KB Output is correct
46 Correct 0 ms 460 KB Output is correct
47 Correct 1 ms 332 KB Output is correct
48 Correct 1 ms 332 KB Output is correct
49 Correct 0 ms 332 KB Output is correct
50 Correct 0 ms 332 KB Output is correct
51 Correct 1 ms 332 KB Output is correct
52 Correct 1 ms 404 KB Output is correct
53 Correct 1 ms 332 KB Output is correct
54 Correct 1 ms 332 KB Output is correct
55 Correct 1 ms 460 KB Output is correct
56 Correct 1 ms 460 KB Output is correct
57 Correct 1 ms 460 KB Output is correct
58 Correct 1 ms 332 KB Output is correct
59 Correct 1 ms 332 KB Output is correct
60 Correct 0 ms 332 KB Output is correct
61 Correct 1 ms 716 KB Output is correct
62 Correct 1 ms 716 KB Output is correct
63 Correct 1 ms 844 KB Output is correct
64 Correct 1 ms 716 KB Output is correct
65 Correct 1 ms 844 KB Output is correct
66 Correct 1 ms 844 KB Output is correct
67 Correct 2 ms 972 KB Output is correct
68 Correct 1 ms 972 KB Output is correct
69 Correct 3 ms 972 KB Output is correct
70 Correct 2 ms 972 KB Output is correct
71 Correct 4 ms 1100 KB Output is correct
72 Correct 4 ms 1152 KB Output is correct
73 Correct 2 ms 972 KB Output is correct
74 Correct 2 ms 972 KB Output is correct
75 Correct 3 ms 972 KB Output is correct
76 Correct 2 ms 972 KB Output is correct
77 Correct 2 ms 972 KB Output is correct
78 Correct 2 ms 972 KB Output is correct
79 Correct 1 ms 972 KB Output is correct
80 Correct 1 ms 972 KB Output is correct
81 Correct 269 ms 4268 KB Output is correct
82 Correct 305 ms 4264 KB Output is correct
83 Correct 266 ms 4268 KB Output is correct
84 Correct 263 ms 4268 KB Output is correct
85 Correct 283 ms 4264 KB Output is correct
86 Correct 290 ms 4268 KB Output is correct
87 Correct 259 ms 4280 KB Output is correct
88 Correct 11 ms 2444 KB Output is correct
89 Correct 8 ms 2504 KB Output is correct
90 Correct 12 ms 2696 KB Output is correct
91 Correct 13 ms 2764 KB Output is correct
92 Correct 40 ms 3212 KB Output is correct
93 Correct 47 ms 3280 KB Output is correct
94 Correct 115 ms 3736 KB Output is correct
95 Correct 125 ms 3660 KB Output is correct
96 Correct 196 ms 4068 KB Output is correct
97 Correct 202 ms 4044 KB Output is correct
98 Correct 97 ms 3660 KB Output is correct
99 Correct 96 ms 3672 KB Output is correct
100 Correct 98 ms 3668 KB Output is correct
101 Correct 99 ms 3660 KB Output is correct
102 Correct 98 ms 3668 KB Output is correct
103 Correct 98 ms 3668 KB Output is correct
104 Correct 96 ms 3660 KB Output is correct
105 Correct 92 ms 3668 KB Output is correct