oj.uz

Submission #541769

# Submission time Handle Problem Language Result Execution time Memory
541769 2022-03-24T11:19:58 Z AdamGS Let's Win the Election (JOI22_ho_t3) C++17
100 / 100
 1650 ms 4408 KB 
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
#define rep(a, b) for(int a = 0; a < (b); ++a)
#define st first
#define nd second
#define pb push_back
#define all(a) a.begin(), a.end()
const int LIM=507;
const ld INF=1e9+7;
pair<int,int>T[LIM];
ld dp[LIM][LIM];
int n, k;
ld solve(int m) {
  rep(i, n+1) rep(j, k+1) dp[i][j]=INF;
  dp[0][0]=0;
  for(int i=1; i<=n; ++i) {
    for(int j=0; j<=i; ++j) {
      int l=min(i-j, m);
      if(j) {
        ld x=T[i-1].nd; x/=m+1;
        dp[i][j]=min(dp[i][j], dp[i-1][j-1]+x);
      }
      if(j<i) {
        ld x=T[i-1].st; x/=l;
        dp[i][j]=min(dp[i][j], dp[i-1][j]+x);
        if(i-j>m) {
          dp[i][j]=min(dp[i][j], dp[i-1][j]);
        }
      }
    }
  }
  return dp[n][k-m];
}
int main() {
  ios_base::sync_with_stdio(0); cin.tie(0);
  cin >> n >> k;
  rep(i, n) {
    cin >> T[i].nd >> T[i].st;
    if(T[i].st==-1) T[i].st=INF;
  }
  sort(T, T+n);
  ld ans=INF;
  rep(i, k+1) ans=min(ans, solve(i));
  cout << fixed << setprecision(3) << ans << '\n';
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 120 ms 3824 KB Output is correct
6 Correct 305 ms 3900 KB Output is correct
7 Correct 604 ms 4284 KB Output is correct
8 Correct 1078 ms 4288 KB Output is correct
9 Correct 1621 ms 4288 KB Output is correct
10 Correct 971 ms 4308 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 120 ms 3824 KB Output is correct
6 Correct 305 ms 3900 KB Output is correct
7 Correct 604 ms 4284 KB Output is correct
8 Correct 1078 ms 4288 KB Output is correct
9 Correct 1621 ms 4288 KB Output is correct
10 Correct 971 ms 4308 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 362 ms 3944 KB Output is correct
13 Correct 371 ms 4044 KB Output is correct
14 Correct 351 ms 3944 KB Output is correct
15 Correct 962 ms 4288 KB Output is correct
16 Correct 925 ms 4300 KB Output is correct
17 Correct 963 ms 4288 KB Output is correct
18 Correct 1539 ms 4408 KB Output is correct
19 Correct 1547 ms 4284 KB Output is correct
20 Correct 1578 ms 4288 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 464 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 328 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 0 ms 328 KB Output is correct

Subtask #4
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 464 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 328 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 0 ms 328 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 0 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 1 ms 324 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 1 ms 340 KB Output is correct
38 Correct 1 ms 340 KB Output is correct
39 Correct 1 ms 328 KB Output is correct
40 Correct 1 ms 340 KB Output is correct

Subtask #5
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 464 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 328 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 0 ms 328 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 0 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 1 ms 324 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 1 ms 340 KB Output is correct
38 Correct 1 ms 340 KB Output is correct
39 Correct 1 ms 328 KB Output is correct
40 Correct 1 ms 340 KB Output is correct
41 Correct 3 ms 724 KB Output is correct
42 Correct 2 ms 724 KB Output is correct
43 Correct 4 ms 708 KB Output is correct
44 Correct 4 ms 724 KB Output is correct
45 Correct 5 ms 724 KB Output is correct
46 Correct 6 ms 840 KB Output is correct
47 Correct 8 ms 836 KB Output is correct
48 Correct 8 ms 856 KB Output is correct
49 Correct 13 ms 872 KB Output is correct
50 Correct 10 ms 864 KB Output is correct
51 Correct 14 ms 900 KB Output is correct
52 Correct 14 ms 896 KB Output is correct
53 Correct 11 ms 852 KB Output is correct
54 Correct 11 ms 840 KB Output is correct
55 Correct 11 ms 840 KB Output is correct
56 Correct 11 ms 856 KB Output is correct
57 Correct 9 ms 732 KB Output is correct
58 Correct 8 ms 852 KB Output is correct
59 Correct 8 ms 852 KB Output is correct
60 Correct 8 ms 852 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1650 ms 4296 KB Output is correct
2 Correct 1628 ms 4284 KB Output is correct
3 Correct 1571 ms 4308 KB Output is correct
4 Correct 1542 ms 4288 KB Output is correct
5 Correct 1586 ms 4296 KB Output is correct
6 Correct 1553 ms 4288 KB Output is correct
7 Correct 1533 ms 4288 KB Output is correct

Subtask #7
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 120 ms 3824 KB Output is correct
6 Correct 305 ms 3900 KB Output is correct
7 Correct 604 ms 4284 KB Output is correct
8 Correct 1078 ms 4288 KB Output is correct
9 Correct 1621 ms 4288 KB Output is correct
10 Correct 971 ms 4308 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 362 ms 3944 KB Output is correct
13 Correct 371 ms 4044 KB Output is correct
14 Correct 351 ms 3944 KB Output is correct
15 Correct 962 ms 4288 KB Output is correct
16 Correct 925 ms 4300 KB Output is correct
17 Correct 963 ms 4288 KB Output is correct
18 Correct 1539 ms 4408 KB Output is correct
19 Correct 1547 ms 4284 KB Output is correct
20 Correct 1578 ms 4288 KB Output is correct
21 Correct 1 ms 464 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 1 ms 328 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 0 ms 328 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 1 ms 340 KB Output is correct
38 Correct 0 ms 340 KB Output is correct
39 Correct 1 ms 340 KB Output is correct
40 Correct 1 ms 340 KB Output is correct
41 Correct 1 ms 340 KB Output is correct
42 Correct 1 ms 336 KB Output is correct
43 Correct 1 ms 340 KB Output is correct
44 Correct 0 ms 340 KB Output is correct
45 Correct 1 ms 340 KB Output is correct
46 Correct 1 ms 340 KB Output is correct
47 Correct 1 ms 340 KB Output is correct
48 Correct 1 ms 340 KB Output is correct
49 Correct 1 ms 340 KB Output is correct
50 Correct 1 ms 340 KB Output is correct
51 Correct 1 ms 332 KB Output is correct
52 Correct 1 ms 340 KB Output is correct
53 Correct 1 ms 340 KB Output is correct
54 Correct 1 ms 324 KB Output is correct
55 Correct 1 ms 332 KB Output is correct
56 Correct 1 ms 340 KB Output is correct
57 Correct 1 ms 340 KB Output is correct
58 Correct 1 ms 340 KB Output is correct
59 Correct 1 ms 328 KB Output is correct
60 Correct 1 ms 340 KB Output is correct
61 Correct 3 ms 724 KB Output is correct
62 Correct 2 ms 724 KB Output is correct
63 Correct 4 ms 708 KB Output is correct
64 Correct 4 ms 724 KB Output is correct
65 Correct 5 ms 724 KB Output is correct
66 Correct 6 ms 840 KB Output is correct
67 Correct 8 ms 836 KB Output is correct
68 Correct 8 ms 856 KB Output is correct
69 Correct 13 ms 872 KB Output is correct
70 Correct 10 ms 864 KB Output is correct
71 Correct 14 ms 900 KB Output is correct
72 Correct 14 ms 896 KB Output is correct
73 Correct 11 ms 852 KB Output is correct
74 Correct 11 ms 840 KB Output is correct
75 Correct 11 ms 840 KB Output is correct
76 Correct 11 ms 856 KB Output is correct
77 Correct 9 ms 732 KB Output is correct
78 Correct 8 ms 852 KB Output is correct
79 Correct 8 ms 852 KB Output is correct
80 Correct 8 ms 852 KB Output is correct
81 Correct 1650 ms 4296 KB Output is correct
82 Correct 1628 ms 4284 KB Output is correct
83 Correct 1571 ms 4308 KB Output is correct
84 Correct 1542 ms 4288 KB Output is correct
85 Correct 1586 ms 4296 KB Output is correct
86 Correct 1553 ms 4288 KB Output is correct
87 Correct 1533 ms 4288 KB Output is correct
88 Correct 106 ms 3916 KB Output is correct
89 Correct 108 ms 3832 KB Output is correct
90 Correct 277 ms 3900 KB Output is correct
91 Correct 275 ms 3924 KB Output is correct
92 Correct 624 ms 4300 KB Output is correct
93 Correct 615 ms 4284 KB Output is correct
94 Correct 1032 ms 4296 KB Output is correct
95 Correct 1004 ms 4300 KB Output is correct
96 Correct 1273 ms 4284 KB Output is correct
97 Correct 1290 ms 4288 KB Output is correct
98 Correct 902 ms 4288 KB Output is correct
99 Correct 947 ms 4296 KB Output is correct
100 Correct 933 ms 4288 KB Output is correct
101 Correct 957 ms 4296 KB Output is correct
102 Correct 942 ms 4308 KB Output is correct
103 Correct 945 ms 4308 KB Output is correct
104 Correct 944 ms 4288 KB Output is correct
105 Correct 934 ms 4300 KB Output is correct