oj.uz

Submission #697610

# Submission time Handle Problem Language Result Execution time Memory
697610 2023-02-10T14:55:24 Z Dan4Life Road Closures (APIO21_roads) C++17
36 / 100
 247 ms 6624 KB 
#include "roads.h"
#include <bits/stdc++.h>
using namespace std;
#define fi first
#define se second
#define pb push_back
#define sz(a) (int)a.size()
#define all(a) a.begin(),a.end()
using ll = long long;
const int mxN = (int)2e3+10;
const ll LINF = (ll)1e18;

int n, k;
ll dp[mxN][2];
vector<pair<int,ll>> adj[mxN];

void dfs(int s, int p){
    vector<int> v; v.clear();
    for(auto x : adj[s]){
        int u = x.fi; ll w = x.se;
        if(u!=p) dfs(u,s), dp[u][0]+=w, v.pb(u);
    }
    sort(all(v), [&](int a, int b){
        return dp[a][1]-dp[a][0]<dp[b][1]-dp[b][0];
    });
    for(int x = 0; auto u : v){
        if(x<k) dp[s][0]+=min(dp[u][0],dp[u][1]);
        else dp[s][0]+=dp[u][0];
        if(x<k-1) dp[s][1]+=min(dp[u][0],dp[u][1]);
        else dp[s][1]+=dp[u][0];
        x++;
    }
}

vector<ll> minimum_closure_costs(int N, vector<int> U, vector<int> V, vector<int> W) {
    n = N;
    vector<ll> ans(N,0ll);
    ans[0] = accumulate(all(W),0ll);
    if(accumulate(all(U),0ll)==0ll){
        sort(all(W)); reverse(all(W)); int i = 0;
        ll tot = accumulate(all(W),0ll);
        for(auto &u : ans) u=tot,tot-=W[i++];
        return ans;
    }
    bool isLine = 1;
    for(int i = 0; i < N-1; i++)
        isLine &= (U[i]==i and V[i]==i+1);
    if(isLine){
        ll dp[N-1][2];
        dp[0][0] = dp[0][1] = 0;
        for(int i = 1; i < N; i++){
            dp[i][0] = min(dp[i-1][1],dp[i-1][0])+W[i-1];
            dp[i][1] = dp[i-1][0];
        }
        ans[1] = min(dp[N-1][0],dp[N-1][1]);
        return ans;
    }
    for(int i = 0; i < N-1; i++){
        adj[U[i]].pb({V[i],W[i]});
        adj[V[i]].pb({U[i],W[i]});
    }
    for(k = 1; k < n; k++)
        memset(dp,0,sizeof(dp)), dfs(0,-1), ans[k]=dp[0][0];
    return ans;
}

Compilation message

roads.cpp: In function 'void dfs(int, int)':
roads.cpp:27:20: warning: range-based 'for' loops with initializer only available with '-std=c++2a' or '-std=gnu++2a'
   27 |     for(int x = 0; auto u : v){
      |                    ^~~~

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 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 0 ms 340 KB Output is correct
12 Correct 21 ms 2132 KB Output is correct
13 Correct 34 ms 3464 KB Output is correct
14 Correct 41 ms 3388 KB Output is correct
15 Correct 45 ms 3696 KB Output is correct
16 Correct 45 ms 3688 KB Output is correct
17 Correct 39 ms 3748 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 31 ms 3092 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 32 ms 4168 KB Output is correct
3 Correct 38 ms 4660 KB Output is correct
4 Correct 51 ms 4988 KB Output is correct
5 Correct 39 ms 5036 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 2 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 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 21 ms 3156 KB Output is correct
13 Correct 34 ms 5000 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 31 ms 4480 KB Output is correct
16 Correct 33 ms 4948 KB Output is correct

Subtask #3
14.0 / 14.0

# 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 356 KB Output is correct
4 Correct 2 ms 340 KB Output is correct
5 Correct 3 ms 340 KB Output is correct
6 Correct 3 ms 356 KB Output is correct
7 Correct 2 ms 356 KB Output is correct
8 Correct 2 ms 340 KB Output is correct
9 Correct 2 ms 340 KB Output is correct
10 Correct 1 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 1 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 1 ms 356 KB Output is correct
17 Correct 3 ms 356 KB Output is correct
18 Correct 2 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 0 ms 340 KB Output is correct

Subtask #4
10.0 / 10.0

# 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 356 KB Output is correct
4 Correct 2 ms 340 KB Output is correct
5 Correct 3 ms 340 KB Output is correct
6 Correct 3 ms 356 KB Output is correct
7 Correct 2 ms 356 KB Output is correct
8 Correct 2 ms 340 KB Output is correct
9 Correct 2 ms 340 KB Output is correct
10 Correct 1 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 1 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 1 ms 356 KB Output is correct
17 Correct 3 ms 356 KB Output is correct
18 Correct 2 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 0 ms 340 KB Output is correct
22 Correct 0 ms 356 KB Output is correct
23 Correct 107 ms 492 KB Output is correct
24 Correct 238 ms 580 KB Output is correct
25 Correct 177 ms 532 KB Output is correct
26 Correct 179 ms 548 KB Output is correct
27 Correct 190 ms 604 KB Output is correct
28 Correct 93 ms 568 KB Output is correct
29 Correct 208 ms 468 KB Output is correct
30 Correct 149 ms 568 KB Output is correct
31 Correct 154 ms 568 KB Output is correct
32 Correct 94 ms 564 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 1 ms 468 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 1 ms 468 KB Output is correct
37 Correct 1 ms 468 KB Output is correct
38 Correct 1 ms 468 KB Output is correct
39 Correct 1 ms 276 KB Output is correct
40 Correct 0 ms 340 KB Output is correct
41 Correct 2 ms 360 KB Output is correct
42 Correct 3 ms 340 KB Output is correct
43 Correct 3 ms 340 KB Output is correct
44 Correct 3 ms 340 KB Output is correct
45 Correct 3 ms 340 KB Output is correct
46 Correct 3 ms 348 KB Output is correct
47 Correct 0 ms 340 KB Output is correct
48 Correct 1 ms 356 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 143 ms 516 KB Output is correct
54 Correct 247 ms 644 KB Output is correct
55 Correct 135 ms 576 KB Output is correct
56 Correct 1 ms 368 KB Output is correct
57 Correct 1 ms 340 KB Output is correct
58 Correct 1 ms 340 KB Output is correct
59 Correct 5 ms 340 KB Output is correct
60 Correct 3 ms 340 KB Output is correct
61 Correct 0 ms 340 KB Output is correct
62 Correct 0 ms 340 KB Output is correct
63 Correct 1 ms 340 KB Output is correct
64 Correct 229 ms 588 KB Output is correct
65 Correct 235 ms 496 KB Output is correct
66 Correct 99 ms 556 KB Output is correct
67 Correct 94 ms 548 KB Output is correct
68 Correct 102 ms 496 KB Output is correct

Subtask #5
0 / 17.0

# Verdict Execution time Memory Grader output
1 Runtime error 27 ms 6624 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #6
0 / 25.0

# Verdict Execution time Memory Grader output
1 Runtime error 27 ms 6624 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #7
0 / 22.0

# 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 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 0 ms 340 KB Output is correct
12 Correct 21 ms 2132 KB Output is correct
13 Correct 34 ms 3464 KB Output is correct
14 Correct 41 ms 3388 KB Output is correct
15 Correct 45 ms 3696 KB Output is correct
16 Correct 45 ms 3688 KB Output is correct
17 Correct 39 ms 3748 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 31 ms 3092 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 32 ms 4168 KB Output is correct
22 Correct 38 ms 4660 KB Output is correct
23 Correct 51 ms 4988 KB Output is correct
24 Correct 39 ms 5036 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 2 ms 340 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 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 21 ms 3156 KB Output is correct
32 Correct 34 ms 5000 KB Output is correct
33 Correct 0 ms 340 KB Output is correct
34 Correct 31 ms 4480 KB Output is correct
35 Correct 33 ms 4948 KB Output is correct
36 Correct 0 ms 340 KB Output is correct
37 Correct 0 ms 340 KB Output is correct
38 Correct 0 ms 356 KB Output is correct
39 Correct 2 ms 340 KB Output is correct
40 Correct 3 ms 340 KB Output is correct
41 Correct 3 ms 356 KB Output is correct
42 Correct 2 ms 356 KB Output is correct
43 Correct 2 ms 340 KB Output is correct
44 Correct 2 ms 340 KB Output is correct
45 Correct 1 ms 340 KB Output is correct
46 Correct 0 ms 340 KB Output is correct
47 Correct 0 ms 340 KB Output is correct
48 Correct 1 ms 340 KB Output is correct
49 Correct 0 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 3 ms 356 KB Output is correct
53 Correct 2 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 0 ms 340 KB Output is correct
57 Correct 0 ms 356 KB Output is correct
58 Correct 107 ms 492 KB Output is correct
59 Correct 238 ms 580 KB Output is correct
60 Correct 177 ms 532 KB Output is correct
61 Correct 179 ms 548 KB Output is correct
62 Correct 190 ms 604 KB Output is correct
63 Correct 93 ms 568 KB Output is correct
64 Correct 208 ms 468 KB Output is correct
65 Correct 149 ms 568 KB Output is correct
66 Correct 154 ms 568 KB Output is correct
67 Correct 94 ms 564 KB Output is correct
68 Correct 1 ms 340 KB Output is correct
69 Correct 1 ms 468 KB Output is correct
70 Correct 1 ms 340 KB Output is correct
71 Correct 1 ms 468 KB Output is correct
72 Correct 1 ms 468 KB Output is correct
73 Correct 1 ms 468 KB Output is correct
74 Correct 1 ms 276 KB Output is correct
75 Correct 0 ms 340 KB Output is correct
76 Correct 2 ms 360 KB Output is correct
77 Correct 3 ms 340 KB Output is correct
78 Correct 3 ms 340 KB Output is correct
79 Correct 3 ms 340 KB Output is correct
80 Correct 3 ms 340 KB Output is correct
81 Correct 3 ms 348 KB Output is correct
82 Correct 0 ms 340 KB Output is correct
83 Correct 1 ms 356 KB Output is correct
84 Correct 1 ms 340 KB Output is correct
85 Correct 1 ms 340 KB Output is correct
86 Correct 1 ms 340 KB Output is correct
87 Correct 1 ms 340 KB Output is correct
88 Correct 143 ms 516 KB Output is correct
89 Correct 247 ms 644 KB Output is correct
90 Correct 135 ms 576 KB Output is correct
91 Correct 1 ms 368 KB Output is correct
92 Correct 1 ms 340 KB Output is correct
93 Correct 1 ms 340 KB Output is correct
94 Correct 5 ms 340 KB Output is correct
95 Correct 3 ms 340 KB Output is correct
96 Correct 0 ms 340 KB Output is correct
97 Correct 0 ms 340 KB Output is correct
98 Correct 1 ms 340 KB Output is correct
99 Correct 229 ms 588 KB Output is correct
100 Correct 235 ms 496 KB Output is correct
101 Correct 99 ms 556 KB Output is correct
102 Correct 94 ms 548 KB Output is correct
103 Correct 102 ms 496 KB Output is correct
104 Runtime error 27 ms 6624 KB Execution killed with signal 11
105 Halted 0 ms 0 KB -