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Submission #824488

# Submission time Handle Problem Language Result Execution time Memory
824488 2023-08-14T06:52:18 Z ttamx Let's Win the Election (JOI22_ho_t3) C++14
100 / 100
 651 ms 8412 KB 
#include<bits/stdc++.h>

using namespace std;

const int N=505;

typedef long double ld;

int n,m;
ld a[N],b[N],dp[N][N],dp2[N][N];
vector<pair<ld,ld>> vec;
ld ans=LDBL_MAX;

int main(){
    cin.tie(nullptr)->sync_with_stdio(false);
    cin >> n >> m;
    for(int i=1;i<=n;i++){
        cin >> a[i] >> b[i];
        if(b[i]<0)b[i]=DBL_MAX;
        vec.emplace_back(b[i],a[i]);
    }
    sort(vec.begin(),vec.end());
    for(int i=1;i<=n;i++)tie(b[i],a[i])=vec[i-1];
    for(int i=1;i<=m;i++)dp2[n+1][i]=DBL_MAX;
    dp2[n+1][0]=0;
    for(int i=n;i>=1;i--){
        for(int j=1;j<=m;j++){
            dp2[i][j]=min(dp2[i+1][j],dp2[i+1][j-1]+a[i]);
        }
        ans=min(ans,dp2[i][m]);
    }
    for(int i=1;i<=m;i++){
        for(int j=0;j<=m;j++)for(int k=0;k<=i;k++)dp[j][k]=LDBL_MAX;
        dp[0][1]=0;
        for(int j=1;j<=m;j++){
            for(int k=1;k<=i;k++){
                dp[j][k]=dp[j-1][k]+a[j]/i;
                if(k>1&&b[j]<=1000)dp[j][k]=min(dp[j][k],dp[j-1][k-1]+b[j]/(k-1));
            }
            ans=min(ans,dp[j][i]+dp2[j+1][m-j]/i);
        }
    }
    cout << fixed << setprecision(12) << ans;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory 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 0 ms 340 KB Output is correct
5 Correct 2 ms 3028 KB Output is correct
6 Correct 9 ms 4088 KB Output is correct
7 Correct 51 ms 6216 KB Output is correct
8 Correct 169 ms 7276 KB Output is correct
9 Correct 383 ms 8292 KB Output is correct
10 Correct 133 ms 6996 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory 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 0 ms 340 KB Output is correct
5 Correct 2 ms 3028 KB Output is correct
6 Correct 9 ms 4088 KB Output is correct
7 Correct 51 ms 6216 KB Output is correct
8 Correct 169 ms 7276 KB Output is correct
9 Correct 383 ms 8292 KB Output is correct
10 Correct 133 ms 6996 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 19 ms 4520 KB Output is correct
13 Correct 19 ms 4408 KB Output is correct
14 Correct 17 ms 4504 KB Output is correct
15 Correct 214 ms 7104 KB Output is correct
16 Correct 201 ms 7276 KB Output is correct
17 Correct 155 ms 7112 KB Output is correct
18 Correct 625 ms 8296 KB Output is correct
19 Correct 552 ms 8288 KB Output is correct
20 Correct 481 ms 8340 KB Output is correct

Subtask #3
11.0 / 11.0

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

Subtask #4
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 0 ms 468 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 1 ms 468 KB Output is correct
20 Correct 0 ms 468 KB Output is correct
21 Correct 1 ms 468 KB Output is correct
22 Correct 0 ms 468 KB Output is correct
23 Correct 0 ms 468 KB Output is correct
24 Correct 0 ms 468 KB Output is correct
25 Correct 0 ms 468 KB Output is correct
26 Correct 1 ms 468 KB Output is correct
27 Correct 0 ms 468 KB Output is correct
28 Correct 0 ms 468 KB Output is correct
29 Correct 0 ms 468 KB Output is correct
30 Correct 1 ms 468 KB Output is correct
31 Correct 1 ms 468 KB Output is correct
32 Correct 0 ms 468 KB Output is correct
33 Correct 0 ms 468 KB Output is correct
34 Correct 1 ms 468 KB Output is correct
35 Correct 1 ms 468 KB Output is correct
36 Correct 1 ms 468 KB Output is correct
37 Correct 0 ms 468 KB Output is correct
38 Correct 0 ms 468 KB Output is correct
39 Correct 0 ms 468 KB Output is correct
40 Correct 0 ms 468 KB Output is correct

Subtask #5
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 0 ms 468 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 1 ms 468 KB Output is correct
20 Correct 0 ms 468 KB Output is correct
21 Correct 1 ms 468 KB Output is correct
22 Correct 0 ms 468 KB Output is correct
23 Correct 0 ms 468 KB Output is correct
24 Correct 0 ms 468 KB Output is correct
25 Correct 0 ms 468 KB Output is correct
26 Correct 1 ms 468 KB Output is correct
27 Correct 0 ms 468 KB Output is correct
28 Correct 0 ms 468 KB Output is correct
29 Correct 0 ms 468 KB Output is correct
30 Correct 1 ms 468 KB Output is correct
31 Correct 1 ms 468 KB Output is correct
32 Correct 0 ms 468 KB Output is correct
33 Correct 0 ms 468 KB Output is correct
34 Correct 1 ms 468 KB Output is correct
35 Correct 1 ms 468 KB Output is correct
36 Correct 1 ms 468 KB Output is correct
37 Correct 0 ms 468 KB Output is correct
38 Correct 0 ms 468 KB Output is correct
39 Correct 0 ms 468 KB Output is correct
40 Correct 0 ms 468 KB Output is correct
41 Correct 1 ms 852 KB Output is correct
42 Correct 1 ms 852 KB Output is correct
43 Correct 1 ms 852 KB Output is correct
44 Correct 1 ms 852 KB Output is correct
45 Correct 1 ms 980 KB Output is correct
46 Correct 1 ms 980 KB Output is correct
47 Correct 2 ms 1104 KB Output is correct
48 Correct 2 ms 1104 KB Output is correct
49 Correct 3 ms 1224 KB Output is correct
50 Correct 4 ms 1228 KB Output is correct
51 Correct 6 ms 1472 KB Output is correct
52 Correct 6 ms 1492 KB Output is correct
53 Correct 2 ms 1108 KB Output is correct
54 Correct 2 ms 1100 KB Output is correct
55 Correct 2 ms 1100 KB Output is correct
56 Correct 2 ms 1108 KB Output is correct
57 Correct 2 ms 1108 KB Output is correct
58 Correct 3 ms 1100 KB Output is correct
59 Correct 2 ms 1104 KB Output is correct
60 Correct 2 ms 1108 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 625 ms 8300 KB Output is correct
2 Correct 620 ms 8292 KB Output is correct
3 Correct 651 ms 8412 KB Output is correct
4 Correct 623 ms 8332 KB Output is correct
5 Correct 614 ms 8288 KB Output is correct
6 Correct 619 ms 8292 KB Output is correct
7 Correct 613 ms 8192 KB Output is correct

Subtask #7
23.0 / 23.0

# Verdict Execution time Memory 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 0 ms 340 KB Output is correct
5 Correct 2 ms 3028 KB Output is correct
6 Correct 9 ms 4088 KB Output is correct
7 Correct 51 ms 6216 KB Output is correct
8 Correct 169 ms 7276 KB Output is correct
9 Correct 383 ms 8292 KB Output is correct
10 Correct 133 ms 6996 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 19 ms 4520 KB Output is correct
13 Correct 19 ms 4408 KB Output is correct
14 Correct 17 ms 4504 KB Output is correct
15 Correct 214 ms 7104 KB Output is correct
16 Correct 201 ms 7276 KB Output is correct
17 Correct 155 ms 7112 KB Output is correct
18 Correct 625 ms 8296 KB Output is correct
19 Correct 552 ms 8288 KB Output is correct
20 Correct 481 ms 8340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 0 ms 340 KB Output is correct
23 Correct 0 ms 340 KB Output is correct
24 Correct 0 ms 340 KB Output is correct
25 Correct 0 ms 340 KB Output is correct
26 Correct 0 ms 340 KB Output is correct
27 Correct 0 ms 340 KB Output is correct
28 Correct 0 ms 340 KB Output is correct
29 Correct 0 ms 340 KB Output is correct
30 Correct 0 ms 340 KB Output is correct
31 Correct 0 ms 340 KB Output is correct
32 Correct 0 ms 340 KB Output is correct
33 Correct 0 ms 340 KB Output is correct
34 Correct 0 ms 340 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 0 ms 340 KB Output is correct
37 Correct 0 ms 468 KB Output is correct
38 Correct 1 ms 468 KB Output is correct
39 Correct 1 ms 468 KB Output is correct
40 Correct 0 ms 468 KB Output is correct
41 Correct 1 ms 468 KB Output is correct
42 Correct 0 ms 468 KB Output is correct
43 Correct 0 ms 468 KB Output is correct
44 Correct 0 ms 468 KB Output is correct
45 Correct 0 ms 468 KB Output is correct
46 Correct 1 ms 468 KB Output is correct
47 Correct 0 ms 468 KB Output is correct
48 Correct 0 ms 468 KB Output is correct
49 Correct 0 ms 468 KB Output is correct
50 Correct 1 ms 468 KB Output is correct
51 Correct 1 ms 468 KB Output is correct
52 Correct 0 ms 468 KB Output is correct
53 Correct 0 ms 468 KB Output is correct
54 Correct 1 ms 468 KB Output is correct
55 Correct 1 ms 468 KB Output is correct
56 Correct 1 ms 468 KB Output is correct
57 Correct 0 ms 468 KB Output is correct
58 Correct 0 ms 468 KB Output is correct
59 Correct 0 ms 468 KB Output is correct
60 Correct 0 ms 468 KB Output is correct
61 Correct 1 ms 852 KB Output is correct
62 Correct 1 ms 852 KB Output is correct
63 Correct 1 ms 852 KB Output is correct
64 Correct 1 ms 852 KB Output is correct
65 Correct 1 ms 980 KB Output is correct
66 Correct 1 ms 980 KB Output is correct
67 Correct 2 ms 1104 KB Output is correct
68 Correct 2 ms 1104 KB Output is correct
69 Correct 3 ms 1224 KB Output is correct
70 Correct 4 ms 1228 KB Output is correct
71 Correct 6 ms 1472 KB Output is correct
72 Correct 6 ms 1492 KB Output is correct
73 Correct 2 ms 1108 KB Output is correct
74 Correct 2 ms 1100 KB Output is correct
75 Correct 2 ms 1100 KB Output is correct
76 Correct 2 ms 1108 KB Output is correct
77 Correct 2 ms 1108 KB Output is correct
78 Correct 3 ms 1100 KB Output is correct
79 Correct 2 ms 1104 KB Output is correct
80 Correct 2 ms 1108 KB Output is correct
81 Correct 625 ms 8300 KB Output is correct
82 Correct 620 ms 8292 KB Output is correct
83 Correct 651 ms 8412 KB Output is correct
84 Correct 623 ms 8332 KB Output is correct
85 Correct 614 ms 8288 KB Output is correct
86 Correct 619 ms 8292 KB Output is correct
87 Correct 613 ms 8192 KB Output is correct
88 Correct 2 ms 3028 KB Output is correct
89 Correct 2 ms 3028 KB Output is correct
90 Correct 12 ms 4040 KB Output is correct
91 Correct 12 ms 4028 KB Output is correct
92 Correct 80 ms 6212 KB Output is correct
93 Correct 80 ms 6312 KB Output is correct
94 Correct 259 ms 7232 KB Output is correct
95 Correct 262 ms 7316 KB Output is correct
96 Correct 458 ms 7900 KB Output is correct
97 Correct 476 ms 7816 KB Output is correct
98 Correct 218 ms 7156 KB Output is correct
99 Correct 211 ms 7112 KB Output is correct
100 Correct 210 ms 7112 KB Output is correct
101 Correct 220 ms 7192 KB Output is correct
102 Correct 212 ms 7116 KB Output is correct
103 Correct 213 ms 7056 KB Output is correct
104 Correct 241 ms 7112 KB Output is correct
105 Correct 213 ms 7184 KB Output is correct