oj.uz

Submission #536028

# Submission time Handle Problem Language Result Execution time Memory
536028 2022-03-12T07:12:33 Z zaneyu Let's Win the Election (JOI22_ho_t3) C++14
100 / 100
 931 ms 4364 KB 
/*input
20
14
106 277
175 217
170 227
164 245
118 254
139 261
142 270
185 200
162 241
153 239
128 264
103 299
147 248
158 236
160 232
183 205
194 197
135 260
153 234
128 260
*/
#include<bits/stdc++.h>
using namespace std;
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
typedef tree<long long, null_type, less_equal<long long>, rb_tree_tag, tree_order_statistics_node_update> indexed_set;
#pragma GCC optimize("unroll-loops,no-stack-protector")
//order_of_key #of elements less than x
// find_by_order kth element
using ll = long long;
using ld = long double;
using pii = pair<int,int>;
#define f first
#define s second
#define pb push_back
#define REP(i,n) for(int i=0;i<n;i++)
#define REP1(i,n) for(int i=1;i<=n;i++)
#define FILL(n,x) memset(n,x,sizeof(n))
#define ALL(_a) _a.begin(),_a.end()
#define sz(x) (int)x.size()
#define SORT_UNIQUE(c) (sort(c.begin(),c.end()), c.resize(distance(c.begin(),unique(c.begin(),c.end()))))
const ll INF64=4e18;
const int INF=0x3f3f3f3f;
const ll MOD=1e9+7;
const ld PI=acos(-1);
const ld eps=1e-6;
#define lowb(x) x&(-x)
#define MNTO(x,y) x=min(x,(__typeof__(x))y)
#define MXTO(x,y) x=max(x,(__typeof__(x))y)
ll sub(ll a,ll b){
    ll x=a-b;
    while(x<0) x+=MOD;
    while(x>MOD) x-=MOD;
    return x;
}
ll mult(ll a,ll b){
    return (a*b)%MOD;
}
ll mypow(ll a,ll b){
    if(b<=0) return 1;
    ll res=1LL;
    while(b){
        if(b&1) res=(res*a)%MOD;
        a=(a*a)%MOD;
        b>>=1;
    }
    return res;
}
const ll maxn=500+5;
const ll maxlg=__lg(maxn)+2; 
ld dp[maxn][maxn],ndp[maxn][maxn];
pii arr[maxn];
int main(){
    int n,k;
    cin>>n>>k;
    int cnt=0;
    REP1(i,n){
        cin>>arr[i].s>>arr[i].f;
        if(arr[i].f==-1) arr[i].f=INF;
        else ++cnt;
    }
    sort(arr+1,arr+n+1);
    REP1(i,n){
        swap(arr[i].f,arr[i].s);
    }
    ld ans=INF;
    REP(a,min(k,cnt)+1){
        REP(i,n+1) REP(j,k-a+1) dp[i][j]=INF;
        dp[0][0]=0;
        REP1(i,n){
            REP(j,i+1){
                if(i-j>a){
                    dp[i][j]=dp[i-1][j];
                    if(j) MNTO(dp[i][j],dp[i-1][j-1]+(ld)arr[i].f/(a+1));
                }
                else{
                    dp[i][j]=(dp[i-1][j]+(ld)arr[i].s/(i-j));
                    if(j) MNTO(dp[i][j],dp[i-1][j-1]+(ld)arr[i].f/(a+1));
                }
            }
        }
        MNTO(ans,dp[n][k-a]);
    }
    cout<<fixed<<setprecision(20)<<ans<<'\n';
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 312 KB Output is correct
5 Correct 4 ms 3796 KB Output is correct
6 Correct 5 ms 3796 KB Output is correct
7 Correct 5 ms 4276 KB Output is correct
8 Correct 6 ms 4284 KB Output is correct
9 Correct 5 ms 4180 KB Output is correct
10 Correct 4 ms 4180 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 312 KB Output is correct
5 Correct 4 ms 3796 KB Output is correct
6 Correct 5 ms 3796 KB Output is correct
7 Correct 5 ms 4276 KB Output is correct
8 Correct 6 ms 4284 KB Output is correct
9 Correct 5 ms 4180 KB Output is correct
10 Correct 4 ms 4180 KB Output is correct
11 Correct 0 ms 312 KB Output is correct
12 Correct 185 ms 3936 KB Output is correct
13 Correct 194 ms 3940 KB Output is correct
14 Correct 130 ms 3944 KB Output is correct
15 Correct 553 ms 4272 KB Output is correct
16 Correct 486 ms 4260 KB Output is correct
17 Correct 188 ms 4272 KB Output is correct
18 Correct 898 ms 4256 KB Output is correct
19 Correct 662 ms 4256 KB Output is correct
20 Correct 221 ms 4180 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 312 KB Output is correct
2 Correct 1 ms 312 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 312 KB Output is correct
6 Correct 1 ms 308 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 312 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 312 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 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 312 KB Output is correct
2 Correct 1 ms 312 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 312 KB Output is correct
6 Correct 1 ms 308 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 312 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 312 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 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 340 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 312 KB Output is correct
26 Correct 1 ms 312 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 340 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 1 ms 340 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 340 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 312 KB Output is correct
2 Correct 1 ms 312 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 312 KB Output is correct
6 Correct 1 ms 308 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 312 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 312 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 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 340 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 312 KB Output is correct
26 Correct 1 ms 312 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 340 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 1 ms 340 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 340 KB Output is correct
40 Correct 1 ms 340 KB Output is correct
41 Correct 2 ms 724 KB Output is correct
42 Correct 2 ms 724 KB Output is correct
43 Correct 3 ms 724 KB Output is correct
44 Correct 2 ms 724 KB Output is correct
45 Correct 4 ms 724 KB Output is correct
46 Correct 4 ms 724 KB Output is correct
47 Correct 5 ms 824 KB Output is correct
48 Correct 5 ms 724 KB Output is correct
49 Correct 7 ms 724 KB Output is correct
50 Correct 6 ms 820 KB Output is correct
51 Correct 8 ms 852 KB Output is correct
52 Correct 7 ms 852 KB Output is correct
53 Correct 5 ms 852 KB Output is correct
54 Correct 5 ms 724 KB Output is correct
55 Correct 5 ms 724 KB Output is correct
56 Correct 5 ms 836 KB Output is correct
57 Correct 5 ms 820 KB Output is correct
58 Correct 5 ms 828 KB Output is correct
59 Correct 5 ms 820 KB Output is correct
60 Correct 5 ms 824 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 909 ms 4264 KB Output is correct
2 Correct 890 ms 4260 KB Output is correct
3 Correct 931 ms 4260 KB Output is correct
4 Correct 882 ms 4268 KB Output is correct
5 Correct 884 ms 4268 KB Output is correct
6 Correct 907 ms 4264 KB Output is correct
7 Correct 884 ms 4256 KB Output is correct

Subtask #7
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 312 KB Output is correct
5 Correct 4 ms 3796 KB Output is correct
6 Correct 5 ms 3796 KB Output is correct
7 Correct 5 ms 4276 KB Output is correct
8 Correct 6 ms 4284 KB Output is correct
9 Correct 5 ms 4180 KB Output is correct
10 Correct 4 ms 4180 KB Output is correct
11 Correct 0 ms 312 KB Output is correct
12 Correct 185 ms 3936 KB Output is correct
13 Correct 194 ms 3940 KB Output is correct
14 Correct 130 ms 3944 KB Output is correct
15 Correct 553 ms 4272 KB Output is correct
16 Correct 486 ms 4260 KB Output is correct
17 Correct 188 ms 4272 KB Output is correct
18 Correct 898 ms 4256 KB Output is correct
19 Correct 662 ms 4256 KB Output is correct
20 Correct 221 ms 4180 KB Output is correct
21 Correct 1 ms 312 KB Output is correct
22 Correct 1 ms 312 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 312 KB Output is correct
26 Correct 1 ms 308 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 0 ms 340 KB Output is correct
29 Correct 1 ms 312 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 312 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 1 ms 340 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 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 340 KB Output is correct
43 Correct 1 ms 340 KB Output is correct
44 Correct 1 ms 340 KB Output is correct
45 Correct 1 ms 312 KB Output is correct
46 Correct 1 ms 312 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 340 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 340 KB Output is correct
55 Correct 1 ms 340 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 340 KB Output is correct
60 Correct 1 ms 340 KB Output is correct
61 Correct 2 ms 724 KB Output is correct
62 Correct 2 ms 724 KB Output is correct
63 Correct 3 ms 724 KB Output is correct
64 Correct 2 ms 724 KB Output is correct
65 Correct 4 ms 724 KB Output is correct
66 Correct 4 ms 724 KB Output is correct
67 Correct 5 ms 824 KB Output is correct
68 Correct 5 ms 724 KB Output is correct
69 Correct 7 ms 724 KB Output is correct
70 Correct 6 ms 820 KB Output is correct
71 Correct 8 ms 852 KB Output is correct
72 Correct 7 ms 852 KB Output is correct
73 Correct 5 ms 852 KB Output is correct
74 Correct 5 ms 724 KB Output is correct
75 Correct 5 ms 724 KB Output is correct
76 Correct 5 ms 836 KB Output is correct
77 Correct 5 ms 820 KB Output is correct
78 Correct 5 ms 828 KB Output is correct
79 Correct 5 ms 820 KB Output is correct
80 Correct 5 ms 824 KB Output is correct
81 Correct 909 ms 4264 KB Output is correct
82 Correct 890 ms 4260 KB Output is correct
83 Correct 931 ms 4260 KB Output is correct
84 Correct 882 ms 4268 KB Output is correct
85 Correct 884 ms 4268 KB Output is correct
86 Correct 907 ms 4264 KB Output is correct
87 Correct 884 ms 4256 KB Output is correct
88 Correct 59 ms 3796 KB Output is correct
89 Correct 57 ms 3796 KB Output is correct
90 Correct 160 ms 3884 KB Output is correct
91 Correct 181 ms 3884 KB Output is correct
92 Correct 344 ms 4256 KB Output is correct
93 Correct 354 ms 4260 KB Output is correct
94 Correct 638 ms 4256 KB Output is correct
95 Correct 617 ms 4260 KB Output is correct
96 Correct 785 ms 4256 KB Output is correct
97 Correct 753 ms 4260 KB Output is correct
98 Correct 540 ms 4256 KB Output is correct
99 Correct 555 ms 4180 KB Output is correct
100 Correct 533 ms 4364 KB Output is correct
101 Correct 550 ms 4276 KB Output is correct
102 Correct 541 ms 4260 KB Output is correct
103 Correct 545 ms 4256 KB Output is correct
104 Correct 559 ms 4256 KB Output is correct
105 Correct 543 ms 4256 KB Output is correct