oj.uz

Submission #88008

# Submission time Handle Problem Language Result Execution time Memory
88008 2018-12-03T11:17:41 Z Pajaraja Race (IOI11_race) C++17
100 / 100
 1166 ms 107076 KB 
#include "race.h"
#include <bits/stdc++.h>
using namespace std;
vector<int> g[200007], w[200007];
bool vi[200007];
int x,c,p[200007],b[1000007],sol,k;
queue<pair<int,int> > q;
queue<int> qb;
void dfsbroj(int s,int f)
{
	if(vi[s]) return;
	x++;
	for(int i=0;i<g[s].size();i++) if(g[s][i]!=f) dfsbroj(g[s][i],s);
}
int dfs(int s,int f)
{
	if(vi[s]) return 0;
	int k=1;
	bool moze=true;
	for(int i=0;i<g[s].size();i++) if(g[s][i]!=f)
	{
	    int a=dfs(g[s][i],s);
        if(a>x/2) moze=false;
	    k+=a;
	}
	if(x-k>x/2) moze=false;
	if(moze) c=s;
	return k;
}
void dfssolve(int s,int f,int d,int dist)
{
	if(vi[s] || dist>k) return;
	q.push(make_pair(d,dist));
	qb.push(dist);
	for(int i=0;i<g[s].size();i++) if(g[s][i]!=f) dfssolve(g[s][i],s,d+1,dist+w[s][i]);
}
void centrodecomp(int s,int f)
{
	x=0;
	dfsbroj(s,f);
	dfs(s,f);
	vi[c]=true;
	for(int i=0;i<g[c].size();i++) if(!vi[g[c][i]]) 
	{
	    dfssolve(g[c][i],c,1,w[c][i]);
	    queue<pair<int,int> > qv;
	    while(!q.empty())
	    {
	    	sol=fmin(sol,q.front().first+b[k-q.front().second]);
	    	qv.push(q.front());
	    	q.pop();
		}
		while(!qv.empty())
		{
			b[qv.front().second]=fmin(b[qv.front().second],qv.front().first);
			qv.pop();
		}
	}
	while(!qb.empty())
	{
		b[qb.front()]=100000007;
		qb.pop();
	}
	int r=c;
	for(int i=0;i<g[r].size();i++) if(!vi[g[r][i]]) centrodecomp(g[r][i],r);
}
int best_path(int N, int K, int H[][2], int L[])
{
	k=K;
	for(int i=0;i<N-1;i++)
	{
		g[H[i][0]].push_back(H[i][1]);
		w[H[i][0]].push_back(L[i]);
		g[H[i][1]].push_back(H[i][0]);
		w[H[i][1]].push_back(L[i]);
	}
	sol=100000007;
	for(int i=1;i<1000007;i++) b[i]=100000007;
	centrodecomp(0,-2);
	return (sol>N?-1:sol);
}

Compilation message

race.cpp: In function 'void dfsbroj(int, int)':
race.cpp:13:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0;i<g[s].size();i++) if(g[s][i]!=f) dfsbroj(g[s][i],s);
              ~^~~~~~~~~~~~
race.cpp: In function 'int dfs(int, int)':
race.cpp:20:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0;i<g[s].size();i++) if(g[s][i]!=f)
              ~^~~~~~~~~~~~
race.cpp: In function 'void dfssolve(int, int, int, int)':
race.cpp:35:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0;i<g[s].size();i++) if(g[s][i]!=f) dfssolve(g[s][i],s,d+1,dist+w[s][i]);
              ~^~~~~~~~~~~~
race.cpp: In function 'void centrodecomp(int, int)':
race.cpp:43:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0;i<g[c].size();i++) if(!vi[g[c][i]]) 
              ~^~~~~~~~~~~~
race.cpp:65:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0;i<g[r].size();i++) if(!vi[g[r][i]]) centrodecomp(g[r][i],r);
              ~^~~~~~~~~~~~

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 13816 KB Output is correct
2 Correct 15 ms 13936 KB Output is correct
3 Correct 14 ms 13988 KB Output is correct
4 Correct 14 ms 13988 KB Output is correct
5 Correct 15 ms 13988 KB Output is correct
6 Correct 15 ms 14028 KB Output is correct
7 Correct 14 ms 14128 KB Output is correct
8 Correct 17 ms 14228 KB Output is correct
9 Correct 17 ms 14228 KB Output is correct
10 Correct 17 ms 14228 KB Output is correct
11 Correct 16 ms 14228 KB Output is correct
12 Correct 17 ms 14228 KB Output is correct
13 Correct 16 ms 14228 KB Output is correct
14 Correct 15 ms 14228 KB Output is correct
15 Correct 15 ms 14228 KB Output is correct
16 Correct 17 ms 14228 KB Output is correct
17 Correct 16 ms 14232 KB Output is correct
18 Correct 17 ms 14236 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 13816 KB Output is correct
2 Correct 15 ms 13936 KB Output is correct
3 Correct 14 ms 13988 KB Output is correct
4 Correct 14 ms 13988 KB Output is correct
5 Correct 15 ms 13988 KB Output is correct
6 Correct 15 ms 14028 KB Output is correct
7 Correct 14 ms 14128 KB Output is correct
8 Correct 17 ms 14228 KB Output is correct
9 Correct 17 ms 14228 KB Output is correct
10 Correct 17 ms 14228 KB Output is correct
11 Correct 16 ms 14228 KB Output is correct
12 Correct 17 ms 14228 KB Output is correct
13 Correct 16 ms 14228 KB Output is correct
14 Correct 15 ms 14228 KB Output is correct
15 Correct 15 ms 14228 KB Output is correct
16 Correct 17 ms 14228 KB Output is correct
17 Correct 16 ms 14232 KB Output is correct
18 Correct 17 ms 14236 KB Output is correct
19 Correct 17 ms 14240 KB Output is correct
20 Correct 16 ms 14240 KB Output is correct
21 Correct 16 ms 14248 KB Output is correct
22 Correct 17 ms 14280 KB Output is correct
23 Correct 15 ms 14292 KB Output is correct
24 Correct 16 ms 14308 KB Output is correct
25 Correct 16 ms 14324 KB Output is correct
26 Correct 16 ms 14356 KB Output is correct
27 Correct 17 ms 14388 KB Output is correct
28 Correct 16 ms 14404 KB Output is correct
29 Correct 16 ms 14420 KB Output is correct
30 Correct 16 ms 14452 KB Output is correct
31 Correct 16 ms 14468 KB Output is correct
32 Correct 16 ms 14484 KB Output is correct
33 Correct 51 ms 14500 KB Output is correct
34 Correct 15 ms 14580 KB Output is correct
35 Correct 15 ms 14580 KB Output is correct
36 Correct 15 ms 14580 KB Output is correct
37 Correct 16 ms 14620 KB Output is correct
38 Correct 16 ms 14620 KB Output is correct

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 13816 KB Output is correct
2 Correct 15 ms 13936 KB Output is correct
3 Correct 14 ms 13988 KB Output is correct
4 Correct 14 ms 13988 KB Output is correct
5 Correct 15 ms 13988 KB Output is correct
6 Correct 15 ms 14028 KB Output is correct
7 Correct 14 ms 14128 KB Output is correct
8 Correct 17 ms 14228 KB Output is correct
9 Correct 17 ms 14228 KB Output is correct
10 Correct 17 ms 14228 KB Output is correct
11 Correct 16 ms 14228 KB Output is correct
12 Correct 17 ms 14228 KB Output is correct
13 Correct 16 ms 14228 KB Output is correct
14 Correct 15 ms 14228 KB Output is correct
15 Correct 15 ms 14228 KB Output is correct
16 Correct 17 ms 14228 KB Output is correct
17 Correct 16 ms 14232 KB Output is correct
18 Correct 17 ms 14236 KB Output is correct
19 Correct 324 ms 23600 KB Output is correct
20 Correct 260 ms 25048 KB Output is correct
21 Correct 263 ms 26608 KB Output is correct
22 Correct 262 ms 28204 KB Output is correct
23 Correct 199 ms 29004 KB Output is correct
24 Correct 180 ms 30928 KB Output is correct
25 Correct 310 ms 36020 KB Output is correct
26 Correct 202 ms 41844 KB Output is correct
27 Correct 557 ms 44756 KB Output is correct
28 Correct 776 ms 62324 KB Output is correct
29 Correct 737 ms 64240 KB Output is correct
30 Correct 532 ms 64240 KB Output is correct
31 Correct 412 ms 64240 KB Output is correct
32 Correct 519 ms 64240 KB Output is correct
33 Correct 644 ms 64240 KB Output is correct
34 Correct 577 ms 65516 KB Output is correct

Subtask #4
57.0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 13816 KB Output is correct
2 Correct 15 ms 13936 KB Output is correct
3 Correct 14 ms 13988 KB Output is correct
4 Correct 14 ms 13988 KB Output is correct
5 Correct 15 ms 13988 KB Output is correct
6 Correct 15 ms 14028 KB Output is correct
7 Correct 14 ms 14128 KB Output is correct
8 Correct 17 ms 14228 KB Output is correct
9 Correct 17 ms 14228 KB Output is correct
10 Correct 17 ms 14228 KB Output is correct
11 Correct 16 ms 14228 KB Output is correct
12 Correct 17 ms 14228 KB Output is correct
13 Correct 16 ms 14228 KB Output is correct
14 Correct 15 ms 14228 KB Output is correct
15 Correct 15 ms 14228 KB Output is correct
16 Correct 17 ms 14228 KB Output is correct
17 Correct 16 ms 14232 KB Output is correct
18 Correct 17 ms 14236 KB Output is correct
19 Correct 17 ms 14240 KB Output is correct
20 Correct 16 ms 14240 KB Output is correct
21 Correct 16 ms 14248 KB Output is correct
22 Correct 17 ms 14280 KB Output is correct
23 Correct 15 ms 14292 KB Output is correct
24 Correct 16 ms 14308 KB Output is correct
25 Correct 16 ms 14324 KB Output is correct
26 Correct 16 ms 14356 KB Output is correct
27 Correct 17 ms 14388 KB Output is correct
28 Correct 16 ms 14404 KB Output is correct
29 Correct 16 ms 14420 KB Output is correct
30 Correct 16 ms 14452 KB Output is correct
31 Correct 16 ms 14468 KB Output is correct
32 Correct 16 ms 14484 KB Output is correct
33 Correct 51 ms 14500 KB Output is correct
34 Correct 15 ms 14580 KB Output is correct
35 Correct 15 ms 14580 KB Output is correct
36 Correct 15 ms 14580 KB Output is correct
37 Correct 16 ms 14620 KB Output is correct
38 Correct 16 ms 14620 KB Output is correct
39 Correct 324 ms 23600 KB Output is correct
40 Correct 260 ms 25048 KB Output is correct
41 Correct 263 ms 26608 KB Output is correct
42 Correct 262 ms 28204 KB Output is correct
43 Correct 199 ms 29004 KB Output is correct
44 Correct 180 ms 30928 KB Output is correct
45 Correct 310 ms 36020 KB Output is correct
46 Correct 202 ms 41844 KB Output is correct
47 Correct 557 ms 44756 KB Output is correct
48 Correct 776 ms 62324 KB Output is correct
49 Correct 737 ms 64240 KB Output is correct
50 Correct 532 ms 64240 KB Output is correct
51 Correct 412 ms 64240 KB Output is correct
52 Correct 519 ms 64240 KB Output is correct
53 Correct 644 ms 64240 KB Output is correct
54 Correct 577 ms 65516 KB Output is correct
55 Correct 29 ms 65516 KB Output is correct
56 Correct 30 ms 65516 KB Output is correct
57 Correct 163 ms 65516 KB Output is correct
58 Correct 79 ms 65516 KB Output is correct
59 Correct 207 ms 70424 KB Output is correct
60 Correct 1000 ms 88788 KB Output is correct
61 Correct 442 ms 88788 KB Output is correct
62 Correct 479 ms 88788 KB Output is correct
63 Correct 608 ms 88788 KB Output is correct
64 Correct 1166 ms 88788 KB Output is correct
65 Correct 596 ms 89272 KB Output is correct
66 Correct 992 ms 104064 KB Output is correct
67 Correct 389 ms 104064 KB Output is correct
68 Correct 746 ms 104064 KB Output is correct
69 Correct 609 ms 104460 KB Output is correct
70 Correct 507 ms 107076 KB Output is correct