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Submission #439689

# Submission time Handle Problem Language Result Execution time Memory
439689 2021-06-30T15:25:23 Z CSQ31 Road Closures (APIO21_roads) C++17
36 / 100
 497 ms 27752 KB 
#include "roads.h"
#include<bits/stdc++.h>
using namespace std;
#define pb push_back
#define fi first
#define se second
#define sz(a) (int)(a.size())
#define all(a) a.begin(),a.end()
#define lb lower_bound
#define ub upper_bound
#define owo ios_base::sync_with_stdio(0);cin.tie(0);
#define INF (ll)(1e18)
#define debug(...) fprintf(stderr, __VA_ARGS__),fflush(stderr)
#define time__(d) for(long blockTime = 0; (blockTime == 0 ? (blockTime=clock()) != 0 : false);\
debug("%s time : %.4fs\n", d, (double)(clock() - blockTime) / CLOCKS_PER_SEC))
typedef long long int ll;
typedef long double ld;
typedef pair<ll,ll> PII;
typedef pair<int,int> pii;
typedef vector<vector<int>> vii;
typedef vector<vector<ll>> VII;
ll gcd(ll a,ll b){if(!b)return a;else return gcd(b,a%b);}
vector<vector<PII>> adj(200005);
ll dp[2][2001];
void dfs(int v,int u,int k,ll w){
	int need = sz(adj[v])-k;
	need = max(need,0);
	vector<PII>choose;
	vector<ll>rest;
	for(PII z:adj[v]){
		int x = z.fi;
		ll w = z.se;
		if(x != u){
			dfs(x,v,k,w);
			if(dp[0][x] == INF){
				dp[0][v]+=dp[1][x];
				dp[1][v]+=dp[1][x];
				need--;
			}
		    else choose.pb({dp[1][x]-min(dp[1][x],dp[0][x]),x});
		}
	}
	sort(all(choose));
	if(need <= sz(choose)){
		for(int i=0;i<need;i++)dp[0][v]+=dp[1][choose[i].se];
		for(int i=need;i<sz(choose);i++)dp[0][v]+=min(dp[0][choose[i].se],dp[1][choose[i].se]);
	}
	else dp[0][v] = INF;
	if(u != -1){
		dp[1][v] += w;
		need = max(0,need-1);
		rest.clear();
		for(int i=0;i<need;i++)dp[1][v]+=dp[1][choose[i].se];
		for(int i=need;i<sz(choose);i++)dp[1][v]+=min(dp[0][choose[i].se],dp[1][choose[i].se]);
	}
	
}
vector<ll>ans;
vector<ll> minimum_closure_costs(int n, vector<int> u,vector<int>v,vector<int>w){
	bool sub1 =1;
	bool sub2 = 1;
	bool sub4 = 1;
	ans.resize(n);
	for(int i=0;i<n-1;i++){
		ans[0]+=w[i];
		if(u[i] != i || v[i] != i+1)sub2 = 0;
		if(u[i])sub1 = 0;
		adj[u[i]].pb({v[i],w[i]});
		adj[v[i]].pb({u[i],w[i]});
	}
	if(sub1){
		sort(all(w));
		ll sum = 0;
		for(int i=0;i<n-1;i++){
			sum+=w[i];
			ans[n-i-2] = sum;
		}
		return ans;
	}
	if(sub2){
		VII d(2,vector<ll>(n,INF));
		d[0][0] = 0;
		d[1][0] = w[0];
		for(int i=1;i<n-1;i++){
			d[0][i] = d[1][i-1];
			d[1][i] = min(d[0][i-1],d[1][i-1])+w[i];
		}
		ans[1] = min(d[0][n-2],d[1][n-2]);
		return ans;
	}
	for(int i=0;i<n;i++){
		for(int i=0;i<n;i++)dp[0][i] = dp[1][i] = 0;
		dfs(0,-1,i,0);
		//if(i==1)for(int j=0;j<n;j++)cout<<dp[0][j]<<" "<<dp[1][j]<<'\n';
		ans[i] = dp[0][0];
	}
	return ans;
}

Compilation message

roads.cpp: In function 'std::vector<long long int> minimum_closure_costs(int, std::vector<int>, std::vector<int>, std::vector<int>)':
roads.cpp:62:7: warning: unused variable 'sub4' [-Wunused-variable]
   62 |  bool sub4 = 1;
      |       ^~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 4940 KB Output is correct
2 Correct 7 ms 5188 KB Output is correct
3 Correct 7 ms 5168 KB Output is correct
4 Correct 5 ms 5196 KB Output is correct
5 Correct 4 ms 4940 KB Output is correct
6 Correct 8 ms 4972 KB Output is correct
7 Correct 3 ms 5008 KB Output is correct
8 Correct 12 ms 5068 KB Output is correct
9 Correct 7 ms 5196 KB Output is correct
10 Correct 11 ms 5008 KB Output is correct
11 Correct 4 ms 4940 KB Output is correct
12 Correct 47 ms 10648 KB Output is correct
13 Correct 72 ms 14536 KB Output is correct
14 Correct 79 ms 14420 KB Output is correct
15 Correct 84 ms 15444 KB Output is correct
16 Correct 95 ms 15584 KB Output is correct
17 Correct 96 ms 15704 KB Output is correct
18 Correct 4 ms 4904 KB Output is correct
19 Correct 79 ms 13580 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4940 KB Output is correct
2 Correct 84 ms 15180 KB Output is correct
3 Correct 64 ms 16484 KB Output is correct
4 Correct 84 ms 17304 KB Output is correct
5 Correct 72 ms 17296 KB Output is correct
6 Correct 5 ms 5144 KB Output is correct
7 Correct 7 ms 5144 KB Output is correct
8 Correct 6 ms 5180 KB Output is correct
9 Correct 4 ms 4940 KB Output is correct
10 Correct 4 ms 5004 KB Output is correct
11 Correct 5 ms 4940 KB Output is correct
12 Correct 39 ms 11832 KB Output is correct
13 Correct 59 ms 16480 KB Output is correct
14 Correct 3 ms 4940 KB Output is correct
15 Correct 53 ms 15316 KB Output is correct
16 Correct 76 ms 16512 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 5000 KB Output is correct
2 Correct 4 ms 5004 KB Output is correct
3 Correct 4 ms 5012 KB Output is correct
4 Correct 8 ms 5004 KB Output is correct
5 Correct 8 ms 4940 KB Output is correct
6 Correct 7 ms 4940 KB Output is correct
7 Correct 7 ms 4940 KB Output is correct
8 Correct 7 ms 4940 KB Output is correct
9 Correct 8 ms 4940 KB Output is correct
10 Correct 12 ms 4940 KB Output is correct
11 Correct 4 ms 4940 KB Output is correct
12 Correct 5 ms 4940 KB Output is correct
13 Correct 4 ms 4940 KB Output is correct
14 Correct 4 ms 5004 KB Output is correct
15 Correct 4 ms 4940 KB Output is correct
16 Correct 5 ms 4940 KB Output is correct
17 Correct 7 ms 5028 KB Output is correct
18 Correct 7 ms 4984 KB Output is correct
19 Correct 5 ms 5000 KB Output is correct
20 Correct 4 ms 4940 KB Output is correct
21 Correct 4 ms 5000 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 5000 KB Output is correct
2 Correct 4 ms 5004 KB Output is correct
3 Correct 4 ms 5012 KB Output is correct
4 Correct 8 ms 5004 KB Output is correct
5 Correct 8 ms 4940 KB Output is correct
6 Correct 7 ms 4940 KB Output is correct
7 Correct 7 ms 4940 KB Output is correct
8 Correct 7 ms 4940 KB Output is correct
9 Correct 8 ms 4940 KB Output is correct
10 Correct 12 ms 4940 KB Output is correct
11 Correct 4 ms 4940 KB Output is correct
12 Correct 5 ms 4940 KB Output is correct
13 Correct 4 ms 4940 KB Output is correct
14 Correct 4 ms 5004 KB Output is correct
15 Correct 4 ms 4940 KB Output is correct
16 Correct 5 ms 4940 KB Output is correct
17 Correct 7 ms 5028 KB Output is correct
18 Correct 7 ms 4984 KB Output is correct
19 Correct 5 ms 5000 KB Output is correct
20 Correct 4 ms 4940 KB Output is correct
21 Correct 4 ms 5000 KB Output is correct
22 Correct 4 ms 5016 KB Output is correct
23 Correct 164 ms 5168 KB Output is correct
24 Correct 497 ms 5252 KB Output is correct
25 Correct 344 ms 5196 KB Output is correct
26 Correct 311 ms 5216 KB Output is correct
27 Correct 339 ms 5264 KB Output is correct
28 Correct 397 ms 5252 KB Output is correct
29 Correct 308 ms 5204 KB Output is correct
30 Correct 243 ms 5244 KB Output is correct
31 Correct 291 ms 5228 KB Output is correct
32 Correct 295 ms 5232 KB Output is correct
33 Correct 6 ms 5196 KB Output is correct
34 Correct 5 ms 5196 KB Output is correct
35 Correct 7 ms 5144 KB Output is correct
36 Correct 8 ms 5196 KB Output is correct
37 Correct 6 ms 5196 KB Output is correct
38 Correct 5 ms 5232 KB Output is correct
39 Correct 5 ms 4940 KB Output is correct
40 Correct 5 ms 5000 KB Output is correct
41 Correct 6 ms 4940 KB Output is correct
42 Correct 7 ms 5004 KB Output is correct
43 Correct 7 ms 4940 KB Output is correct
44 Correct 6 ms 5004 KB Output is correct
45 Correct 6 ms 5004 KB Output is correct
46 Correct 6 ms 4940 KB Output is correct
47 Correct 6 ms 4992 KB Output is correct
48 Correct 5 ms 5004 KB Output is correct
49 Correct 15 ms 4964 KB Output is correct
50 Correct 5 ms 4940 KB Output is correct
51 Correct 4 ms 5004 KB Output is correct
52 Correct 4 ms 5004 KB Output is correct
53 Correct 199 ms 5068 KB Output is correct
54 Correct 359 ms 5228 KB Output is correct
55 Correct 347 ms 5244 KB Output is correct
56 Correct 5 ms 5144 KB Output is correct
57 Correct 6 ms 5196 KB Output is correct
58 Correct 5 ms 4940 KB Output is correct
59 Correct 7 ms 5004 KB Output is correct
60 Correct 7 ms 4940 KB Output is correct
61 Correct 4 ms 4940 KB Output is correct
62 Correct 5 ms 5008 KB Output is correct
63 Correct 4 ms 4940 KB Output is correct
64 Correct 318 ms 5216 KB Output is correct
65 Correct 331 ms 5196 KB Output is correct
66 Correct 257 ms 5212 KB Output is correct
67 Correct 319 ms 5216 KB Output is correct
68 Correct 253 ms 5212 KB Output is correct

Subtask #5
0 / 17.0

# Verdict Execution time Memory Grader output
1 Runtime error 71 ms 27752 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 71 ms 27752 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 5 ms 4940 KB Output is correct
2 Correct 7 ms 5188 KB Output is correct
3 Correct 7 ms 5168 KB Output is correct
4 Correct 5 ms 5196 KB Output is correct
5 Correct 4 ms 4940 KB Output is correct
6 Correct 8 ms 4972 KB Output is correct
7 Correct 3 ms 5008 KB Output is correct
8 Correct 12 ms 5068 KB Output is correct
9 Correct 7 ms 5196 KB Output is correct
10 Correct 11 ms 5008 KB Output is correct
11 Correct 4 ms 4940 KB Output is correct
12 Correct 47 ms 10648 KB Output is correct
13 Correct 72 ms 14536 KB Output is correct
14 Correct 79 ms 14420 KB Output is correct
15 Correct 84 ms 15444 KB Output is correct
16 Correct 95 ms 15584 KB Output is correct
17 Correct 96 ms 15704 KB Output is correct
18 Correct 4 ms 4904 KB Output is correct
19 Correct 79 ms 13580 KB Output is correct
20 Correct 4 ms 4940 KB Output is correct
21 Correct 84 ms 15180 KB Output is correct
22 Correct 64 ms 16484 KB Output is correct
23 Correct 84 ms 17304 KB Output is correct
24 Correct 72 ms 17296 KB Output is correct
25 Correct 5 ms 5144 KB Output is correct
26 Correct 7 ms 5144 KB Output is correct
27 Correct 6 ms 5180 KB Output is correct
28 Correct 4 ms 4940 KB Output is correct
29 Correct 4 ms 5004 KB Output is correct
30 Correct 5 ms 4940 KB Output is correct
31 Correct 39 ms 11832 KB Output is correct
32 Correct 59 ms 16480 KB Output is correct
33 Correct 3 ms 4940 KB Output is correct
34 Correct 53 ms 15316 KB Output is correct
35 Correct 76 ms 16512 KB Output is correct
36 Correct 5 ms 5000 KB Output is correct
37 Correct 4 ms 5004 KB Output is correct
38 Correct 4 ms 5012 KB Output is correct
39 Correct 8 ms 5004 KB Output is correct
40 Correct 8 ms 4940 KB Output is correct
41 Correct 7 ms 4940 KB Output is correct
42 Correct 7 ms 4940 KB Output is correct
43 Correct 7 ms 4940 KB Output is correct
44 Correct 8 ms 4940 KB Output is correct
45 Correct 12 ms 4940 KB Output is correct
46 Correct 4 ms 4940 KB Output is correct
47 Correct 5 ms 4940 KB Output is correct
48 Correct 4 ms 4940 KB Output is correct
49 Correct 4 ms 5004 KB Output is correct
50 Correct 4 ms 4940 KB Output is correct
51 Correct 5 ms 4940 KB Output is correct
52 Correct 7 ms 5028 KB Output is correct
53 Correct 7 ms 4984 KB Output is correct
54 Correct 5 ms 5000 KB Output is correct
55 Correct 4 ms 4940 KB Output is correct
56 Correct 4 ms 5000 KB Output is correct
57 Correct 4 ms 5016 KB Output is correct
58 Correct 164 ms 5168 KB Output is correct
59 Correct 497 ms 5252 KB Output is correct
60 Correct 344 ms 5196 KB Output is correct
61 Correct 311 ms 5216 KB Output is correct
62 Correct 339 ms 5264 KB Output is correct
63 Correct 397 ms 5252 KB Output is correct
64 Correct 308 ms 5204 KB Output is correct
65 Correct 243 ms 5244 KB Output is correct
66 Correct 291 ms 5228 KB Output is correct
67 Correct 295 ms 5232 KB Output is correct
68 Correct 6 ms 5196 KB Output is correct
69 Correct 5 ms 5196 KB Output is correct
70 Correct 7 ms 5144 KB Output is correct
71 Correct 8 ms 5196 KB Output is correct
72 Correct 6 ms 5196 KB Output is correct
73 Correct 5 ms 5232 KB Output is correct
74 Correct 5 ms 4940 KB Output is correct
75 Correct 5 ms 5000 KB Output is correct
76 Correct 6 ms 4940 KB Output is correct
77 Correct 7 ms 5004 KB Output is correct
78 Correct 7 ms 4940 KB Output is correct
79 Correct 6 ms 5004 KB Output is correct
80 Correct 6 ms 5004 KB Output is correct
81 Correct 6 ms 4940 KB Output is correct
82 Correct 6 ms 4992 KB Output is correct
83 Correct 5 ms 5004 KB Output is correct
84 Correct 15 ms 4964 KB Output is correct
85 Correct 5 ms 4940 KB Output is correct
86 Correct 4 ms 5004 KB Output is correct
87 Correct 4 ms 5004 KB Output is correct
88 Correct 199 ms 5068 KB Output is correct
89 Correct 359 ms 5228 KB Output is correct
90 Correct 347 ms 5244 KB Output is correct
91 Correct 5 ms 5144 KB Output is correct
92 Correct 6 ms 5196 KB Output is correct
93 Correct 5 ms 4940 KB Output is correct
94 Correct 7 ms 5004 KB Output is correct
95 Correct 7 ms 4940 KB Output is correct
96 Correct 4 ms 4940 KB Output is correct
97 Correct 5 ms 5008 KB Output is correct
98 Correct 4 ms 4940 KB Output is correct
99 Correct 318 ms 5216 KB Output is correct
100 Correct 331 ms 5196 KB Output is correct
101 Correct 257 ms 5212 KB Output is correct
102 Correct 319 ms 5216 KB Output is correct
103 Correct 253 ms 5212 KB Output is correct
104 Runtime error 71 ms 27752 KB Execution killed with signal 11
105 Halted 0 ms 0 KB -