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답안 #986313

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
986313 2024-05-20T09:55:56 Z Pyqe 경주 (Race) (IOI11_race) C++17
100 / 100
 367 ms 120144 KB 
#include "race.h"
#include <bits/stdc++.h>

using namespace std;

#define mp make_pair
#define fr first
#define sc second

long long d,dsu[200069],cc[200069],lz[200069][2],z,inf=1e18;
vector<pair<long long,long long>> al[200069];
bitset<200069> vtd;
multiset<pair<long long,long long>> ms[200069];
multiset<pair<long long,long long>>::iterator it,it2;

long long fd(long long x)
{
	if(dsu[x]!=x)
	{
		dsu[x]=fd(dsu[x]);
	}
	return dsu[x];
}

void jo(long long x,long long y)
{
	long long k,w;
	
	x=fd(x);
	y=fd(y);
	if(cc[x]<cc[y])
	{
		swap(x,y);
	}
	for(it=ms[y].begin();it!=ms[y].end();it++)
	{
		k=it->fr+lz[y][1];
		w=it->sc+lz[y][0];
		it2=ms[x].lower_bound({d-k-lz[x][1],-inf});
		if(it2!=ms[x].end()&&it2->fr+lz[x][1]==d-k)
		{
			z=min(z,w+it2->sc+lz[x][0]);
		}
	}
	for(it=ms[y].begin();it!=ms[y].end();it++)
	{
		k=it->fr+lz[y][1];
		w=it->sc+lz[y][0];
		ms[x].insert({k-lz[x][1],w-lz[x][0]});
	}
	dsu[y]=x;
	cc[x]+=cc[y];
}

void dfs(long long x)
{
	long long i,sz=al[x].size(),l,w;
	
	vtd[x]=1;
	dsu[x]=x;
	cc[x]=1;
	ms[x].insert({0,0});
	for(i=0;i<sz;i++)
	{
		l=al[x][i].fr;
		w=al[x][i].sc;
		if(!vtd[l])
		{
			dfs(l);
			lz[fd(l)][0]++;
			lz[fd(l)][1]+=w;
			jo(x,l);
		}
	}
}

int best_path(int n,int od,int ed[][2],int wg[])
{
	long long i,k,l;
	
	d=od;
	for(i=0;i<n-1;i++)
	{
		k=ed[i][0];
		l=ed[i][1];
		al[k].push_back({l,wg[i]});
		al[l].push_back({k,wg[i]});
	}
	z=inf;
	dfs(0);
	if(z==inf)
	{
		z=-1;
	}
	return z;
}

Subtask #1
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 20824 KB Output is correct
2 Correct 4 ms 20828 KB Output is correct
3 Correct 4 ms 20828 KB Output is correct
4 Correct 4 ms 20828 KB Output is correct
5 Correct 4 ms 20828 KB Output is correct
6 Correct 4 ms 20828 KB Output is correct
7 Correct 4 ms 20828 KB Output is correct
8 Correct 4 ms 20828 KB Output is correct
9 Correct 4 ms 21080 KB Output is correct
10 Correct 4 ms 20828 KB Output is correct
11 Correct 4 ms 20824 KB Output is correct
12 Correct 4 ms 20828 KB Output is correct
13 Correct 4 ms 20824 KB Output is correct
14 Correct 4 ms 20828 KB Output is correct
15 Correct 4 ms 20824 KB Output is correct
16 Correct 4 ms 20828 KB Output is correct
17 Correct 4 ms 20828 KB Output is correct
18 Correct 4 ms 20828 KB Output is correct

Subtask #2
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 20824 KB Output is correct
2 Correct 4 ms 20828 KB Output is correct
3 Correct 4 ms 20828 KB Output is correct
4 Correct 4 ms 20828 KB Output is correct
5 Correct 4 ms 20828 KB Output is correct
6 Correct 4 ms 20828 KB Output is correct
7 Correct 4 ms 20828 KB Output is correct
8 Correct 4 ms 20828 KB Output is correct
9 Correct 4 ms 21080 KB Output is correct
10 Correct 4 ms 20828 KB Output is correct
11 Correct 4 ms 20824 KB Output is correct
12 Correct 4 ms 20828 KB Output is correct
13 Correct 4 ms 20824 KB Output is correct
14 Correct 4 ms 20828 KB Output is correct
15 Correct 4 ms 20824 KB Output is correct
16 Correct 4 ms 20828 KB Output is correct
17 Correct 4 ms 20828 KB Output is correct
18 Correct 4 ms 20828 KB Output is correct
19 Correct 4 ms 20828 KB Output is correct
20 Correct 4 ms 20824 KB Output is correct
21 Correct 5 ms 21080 KB Output is correct
22 Correct 5 ms 21184 KB Output is correct
23 Correct 5 ms 21220 KB Output is correct
24 Correct 5 ms 21080 KB Output is correct
25 Correct 5 ms 21084 KB Output is correct
26 Correct 5 ms 21036 KB Output is correct
27 Correct 5 ms 21080 KB Output is correct
28 Correct 5 ms 21084 KB Output is correct
29 Correct 5 ms 21196 KB Output is correct
30 Correct 7 ms 21280 KB Output is correct
31 Correct 5 ms 21084 KB Output is correct
32 Correct 6 ms 21084 KB Output is correct
33 Correct 5 ms 21084 KB Output is correct
34 Correct 5 ms 21084 KB Output is correct
35 Correct 6 ms 21084 KB Output is correct
36 Correct 5 ms 21200 KB Output is correct
37 Correct 5 ms 21084 KB Output is correct
38 Correct 5 ms 21084 KB Output is correct

Subtask #3
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 20824 KB Output is correct
2 Correct 4 ms 20828 KB Output is correct
3 Correct 4 ms 20828 KB Output is correct
4 Correct 4 ms 20828 KB Output is correct
5 Correct 4 ms 20828 KB Output is correct
6 Correct 4 ms 20828 KB Output is correct
7 Correct 4 ms 20828 KB Output is correct
8 Correct 4 ms 20828 KB Output is correct
9 Correct 4 ms 21080 KB Output is correct
10 Correct 4 ms 20828 KB Output is correct
11 Correct 4 ms 20824 KB Output is correct
12 Correct 4 ms 20828 KB Output is correct
13 Correct 4 ms 20824 KB Output is correct
14 Correct 4 ms 20828 KB Output is correct
15 Correct 4 ms 20824 KB Output is correct
16 Correct 4 ms 20828 KB Output is correct
17 Correct 4 ms 20828 KB Output is correct
18 Correct 4 ms 20828 KB Output is correct
19 Correct 166 ms 71632 KB Output is correct
20 Correct 173 ms 71900 KB Output is correct
21 Correct 175 ms 72180 KB Output is correct
22 Correct 161 ms 67408 KB Output is correct
23 Correct 196 ms 84816 KB Output is correct
24 Correct 150 ms 68432 KB Output is correct
25 Correct 107 ms 52964 KB Output is correct
26 Correct 62 ms 54584 KB Output is correct
27 Correct 236 ms 76056 KB Output is correct
28 Correct 206 ms 84520 KB Output is correct
29 Correct 202 ms 82136 KB Output is correct
30 Correct 225 ms 76620 KB Output is correct
31 Correct 229 ms 76772 KB Output is correct
32 Correct 316 ms 76772 KB Output is correct
33 Correct 270 ms 97108 KB Output is correct
34 Correct 259 ms 95248 KB Output is correct

Subtask #4
57.0 / 57.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 20824 KB Output is correct
2 Correct 4 ms 20828 KB Output is correct
3 Correct 4 ms 20828 KB Output is correct
4 Correct 4 ms 20828 KB Output is correct
5 Correct 4 ms 20828 KB Output is correct
6 Correct 4 ms 20828 KB Output is correct
7 Correct 4 ms 20828 KB Output is correct
8 Correct 4 ms 20828 KB Output is correct
9 Correct 4 ms 21080 KB Output is correct
10 Correct 4 ms 20828 KB Output is correct
11 Correct 4 ms 20824 KB Output is correct
12 Correct 4 ms 20828 KB Output is correct
13 Correct 4 ms 20824 KB Output is correct
14 Correct 4 ms 20828 KB Output is correct
15 Correct 4 ms 20824 KB Output is correct
16 Correct 4 ms 20828 KB Output is correct
17 Correct 4 ms 20828 KB Output is correct
18 Correct 4 ms 20828 KB Output is correct
19 Correct 4 ms 20828 KB Output is correct
20 Correct 4 ms 20824 KB Output is correct
21 Correct 5 ms 21080 KB Output is correct
22 Correct 5 ms 21184 KB Output is correct
23 Correct 5 ms 21220 KB Output is correct
24 Correct 5 ms 21080 KB Output is correct
25 Correct 5 ms 21084 KB Output is correct
26 Correct 5 ms 21036 KB Output is correct
27 Correct 5 ms 21080 KB Output is correct
28 Correct 5 ms 21084 KB Output is correct
29 Correct 5 ms 21196 KB Output is correct
30 Correct 7 ms 21280 KB Output is correct
31 Correct 5 ms 21084 KB Output is correct
32 Correct 6 ms 21084 KB Output is correct
33 Correct 5 ms 21084 KB Output is correct
34 Correct 5 ms 21084 KB Output is correct
35 Correct 6 ms 21084 KB Output is correct
36 Correct 5 ms 21200 KB Output is correct
37 Correct 5 ms 21084 KB Output is correct
38 Correct 5 ms 21084 KB Output is correct
39 Correct 166 ms 71632 KB Output is correct
40 Correct 173 ms 71900 KB Output is correct
41 Correct 175 ms 72180 KB Output is correct
42 Correct 161 ms 67408 KB Output is correct
43 Correct 196 ms 84816 KB Output is correct
44 Correct 150 ms 68432 KB Output is correct
45 Correct 107 ms 52964 KB Output is correct
46 Correct 62 ms 54584 KB Output is correct
47 Correct 236 ms 76056 KB Output is correct
48 Correct 206 ms 84520 KB Output is correct
49 Correct 202 ms 82136 KB Output is correct
50 Correct 225 ms 76620 KB Output is correct
51 Correct 229 ms 76772 KB Output is correct
52 Correct 316 ms 76772 KB Output is correct
53 Correct 270 ms 97108 KB Output is correct
54 Correct 259 ms 95248 KB Output is correct
55 Correct 14 ms 24408 KB Output is correct
56 Correct 15 ms 24844 KB Output is correct
57 Correct 175 ms 85548 KB Output is correct
58 Correct 76 ms 43936 KB Output is correct
59 Correct 62 ms 54868 KB Output is correct
60 Correct 199 ms 84352 KB Output is correct
61 Correct 231 ms 76112 KB Output is correct
62 Correct 224 ms 76624 KB Output is correct
63 Correct 300 ms 76660 KB Output is correct
64 Correct 367 ms 120144 KB Output is correct
65 Correct 344 ms 111900 KB Output is correct
66 Correct 229 ms 80648 KB Output is correct
67 Correct 251 ms 65232 KB Output is correct
68 Correct 282 ms 76208 KB Output is correct
69 Correct 317 ms 79536 KB Output is correct
70 Correct 266 ms 74320 KB Output is correct