oj.uz

Submission #535389

# Submission time Handle Problem Language Result Execution time Memory
535389 2022-03-10T06:53:10 Z Killer2501 Let's Win the Election (JOI22_ho_t3) C++14
100 / 100
 178 ms 2444 KB 
#include <bits/stdc++.h>
#define ll long long
#define ld long double
#define pb push_back
#define pll pair<ll, int>
#define pii pair<int, int>
#define fi first
#define se second
using namespace std;
const int N = 5e2+5;
const int M = 8;
const int mod = 998244353;
const int base = 350;
const int inf = 1e9;
int m, n, k, t, c[N],  d[N] ;
int ans, tong, b[N], a[N];
vector<int> adj[N];
string s;
int r, sz, ntime;
struct BIT
{
    int n;
    vector<int> fe;
    BIT(){}
    void init(int _n)
    {
        n = _n;
        fe.assign(n+1, 0);
    }
    void add(int id, int x)
    {
        ++id;
        for(; id <= n; id += id & -id)fe[id] += x;
    }
    int get(int id)
    {
        ++id;
        id = min(id, n);
        if(id <= 0)return 0;
        int total = 0;
        for(; id; id -= id & -id)total += fe[id];
        return total;
    }
    int get(int l, int r)
    {
        return get(r) - get(l-1);
    }
}bit[3];
void dfs(int u, int p = 0)
{
    int mx = 0;
    d[u] = 1;
    for(int v: adj[u])
    {
        if(v == p || b[v])continue;
        dfs(v, u);
        d[u] += d[v];
        mx = max(d[v], mx);
    }
    mx = max(mx, sz-d[u]);
    if(mx*2 <= sz)r = u;
}

pii p[N];
double dp[N][N];
bool cmp(const pii& x, const pii& y)
{
    if(x.se == y.se)return x.fi < y.fi;
    if(x.se == -1 || y.se == -1)return x.se > y.se;
    return x.se < y.se;
}
void add(double& x, double y)
{
    if(x > y)x = y;
}
void sol()
{
    cin >> n >> k;
    for(int i = 1; i <= n; i ++)cin >> p[i].fi >> p[i].se;
    sort(p+1, p+1+n, cmp);
    double res = inf;
    for(int i = 0; i <= k; i ++)
    {
        for(int j = i+1; j <= n; j ++)a[j-i] = p[j].fi;
        sort(a+1, a+n-i+1);
        for(int j = 1; j <= k-i; j ++)b[i] += a[j];
    }
    for(int x = 0; x <= k; x ++)
    {
        for(int j = 1; j <= x; j ++)dp[0][j] = inf;
        add(res, dp[0][x]+b[0]);
        for(int i = 1; i <= k; i ++)
        {
            for(int j = 0; j <= x; j ++)
            {
                dp[i][j] = inf;
                add(dp[i][j], dp[i-1][j] + p[i].fi*1.0/(x+1));
                if(j && p[i].se != -1)add(dp[i][j], dp[i-1][j-1] + p[i].se*1.0/j);
            }
            add(res, dp[i][x]+b[i]*1.0/(x+1));
        }
    }
    cout << fixed << setprecision(5) << res;
}
int main()
{
    cin.tie(0);
    cout.tie(0);
    ios_base::sync_with_stdio(0);
    #define task "test"
    if(fopen(task".inp", "r"))
	{
		freopen(task".inp", "r", stdin);
		freopen(task".out", "w", stdout);
	}
    int test = 1;
    //cin >> test;
    while(test -- > 0)sol();
    return 0;
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:113:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  113 |   freopen(task".inp", "r", stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:114:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  114 |   freopen(task".out", "w", stdout);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 1 ms 468 KB Output is correct
6 Correct 3 ms 724 KB Output is correct
7 Correct 13 ms 1344 KB Output is correct
8 Correct 32 ms 1748 KB Output is correct
9 Correct 67 ms 2324 KB Output is correct
10 Correct 24 ms 1620 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 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 1 ms 468 KB Output is correct
6 Correct 3 ms 724 KB Output is correct
7 Correct 13 ms 1344 KB Output is correct
8 Correct 32 ms 1748 KB Output is correct
9 Correct 67 ms 2324 KB Output is correct
10 Correct 24 ms 1620 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 6 ms 940 KB Output is correct
13 Correct 6 ms 852 KB Output is correct
14 Correct 5 ms 852 KB Output is correct
15 Correct 51 ms 1620 KB Output is correct
16 Correct 59 ms 1716 KB Output is correct
17 Correct 49 ms 1736 KB Output is correct
18 Correct 158 ms 2260 KB Output is correct
19 Correct 147 ms 2308 KB Output is correct
20 Correct 111 ms 2432 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 1 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 356 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 344 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 340 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 340 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 356 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 344 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 340 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 348 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 0 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 348 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 344 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 356 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 348 KB Output is correct
38 Correct 1 ms 352 KB Output is correct
39 Correct 1 ms 340 KB Output is correct
40 Correct 1 ms 352 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 1 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 356 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 344 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 340 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 348 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 0 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 348 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 344 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 356 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 348 KB Output is correct
38 Correct 1 ms 352 KB Output is correct
39 Correct 1 ms 340 KB Output is correct
40 Correct 1 ms 352 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 468 KB Output is correct
44 Correct 1 ms 468 KB Output is correct
45 Correct 1 ms 468 KB Output is correct
46 Correct 1 ms 468 KB Output is correct
47 Correct 1 ms 596 KB Output is correct
48 Correct 1 ms 596 KB Output is correct
49 Correct 2 ms 596 KB Output is correct
50 Correct 2 ms 724 KB Output is correct
51 Correct 2 ms 724 KB Output is correct
52 Correct 3 ms 724 KB Output is correct
53 Correct 1 ms 596 KB Output is correct
54 Correct 2 ms 596 KB Output is correct
55 Correct 1 ms 596 KB Output is correct
56 Correct 1 ms 600 KB Output is correct
57 Correct 2 ms 596 KB Output is correct
58 Correct 1 ms 596 KB Output is correct
59 Correct 2 ms 612 KB Output is correct
60 Correct 1 ms 732 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 154 ms 2316 KB Output is correct
2 Correct 161 ms 2444 KB Output is correct
3 Correct 178 ms 2272 KB Output is correct
4 Correct 155 ms 2288 KB Output is correct
5 Correct 148 ms 2388 KB Output is correct
6 Correct 164 ms 2320 KB Output is correct
7 Correct 167 ms 2272 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 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 1 ms 468 KB Output is correct
6 Correct 3 ms 724 KB Output is correct
7 Correct 13 ms 1344 KB Output is correct
8 Correct 32 ms 1748 KB Output is correct
9 Correct 67 ms 2324 KB Output is correct
10 Correct 24 ms 1620 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 6 ms 940 KB Output is correct
13 Correct 6 ms 852 KB Output is correct
14 Correct 5 ms 852 KB Output is correct
15 Correct 51 ms 1620 KB Output is correct
16 Correct 59 ms 1716 KB Output is correct
17 Correct 49 ms 1736 KB Output is correct
18 Correct 158 ms 2260 KB Output is correct
19 Correct 147 ms 2308 KB Output is correct
20 Correct 111 ms 2432 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 0 ms 340 KB Output is correct
26 Correct 0 ms 356 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 344 KB Output is correct
30 Correct 0 ms 340 KB Output is correct
31 Correct 1 ms 348 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 348 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 0 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 348 KB Output is correct
44 Correct 1 ms 340 KB Output is correct
45 Correct 1 ms 344 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 356 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 348 KB Output is correct
58 Correct 1 ms 352 KB Output is correct
59 Correct 1 ms 340 KB Output is correct
60 Correct 1 ms 352 KB Output is correct
61 Correct 1 ms 340 KB Output is correct
62 Correct 1 ms 340 KB Output is correct
63 Correct 1 ms 468 KB Output is correct
64 Correct 1 ms 468 KB Output is correct
65 Correct 1 ms 468 KB Output is correct
66 Correct 1 ms 468 KB Output is correct
67 Correct 1 ms 596 KB Output is correct
68 Correct 1 ms 596 KB Output is correct
69 Correct 2 ms 596 KB Output is correct
70 Correct 2 ms 724 KB Output is correct
71 Correct 2 ms 724 KB Output is correct
72 Correct 3 ms 724 KB Output is correct
73 Correct 1 ms 596 KB Output is correct
74 Correct 2 ms 596 KB Output is correct
75 Correct 1 ms 596 KB Output is correct
76 Correct 1 ms 600 KB Output is correct
77 Correct 2 ms 596 KB Output is correct
78 Correct 1 ms 596 KB Output is correct
79 Correct 2 ms 612 KB Output is correct
80 Correct 1 ms 732 KB Output is correct
81 Correct 154 ms 2316 KB Output is correct
82 Correct 161 ms 2444 KB Output is correct
83 Correct 178 ms 2272 KB Output is correct
84 Correct 155 ms 2288 KB Output is correct
85 Correct 148 ms 2388 KB Output is correct
86 Correct 164 ms 2320 KB Output is correct
87 Correct 167 ms 2272 KB Output is correct
88 Correct 3 ms 484 KB Output is correct
89 Correct 2 ms 484 KB Output is correct
90 Correct 6 ms 732 KB Output is correct
91 Correct 6 ms 728 KB Output is correct
92 Correct 24 ms 1236 KB Output is correct
93 Correct 28 ms 1460 KB Output is correct
94 Correct 73 ms 1820 KB Output is correct
95 Correct 78 ms 1820 KB Output is correct
96 Correct 128 ms 2112 KB Output is correct
97 Correct 135 ms 2132 KB Output is correct
98 Correct 59 ms 1744 KB Output is correct
99 Correct 60 ms 1728 KB Output is correct
100 Correct 65 ms 1636 KB Output is correct
101 Correct 69 ms 1728 KB Output is correct
102 Correct 54 ms 1728 KB Output is correct
103 Correct 57 ms 1736 KB Output is correct
104 Correct 58 ms 1740 KB Output is correct
105 Correct 56 ms 1724 KB Output is correct