oj.uz

답안 #400197

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
400197 2021-05-07T14:38:23 Z MOUF_MAHMALAT 경주 (Race) (IOI11_race) C++14
100 / 100
 1997 ms 48796 KB 
#include "race.h"
#include<bits/stdc++.h>
#define f first
#define s second
using namespace std;
typedef int ll;
vector<vector<pair<ll,ll> > >v;
ll x,y,p[200009],k,ans=1e7;
bool b[200009];
deque<ll>dq;
map<ll,ll>op;
void dfs(ll d,ll pp)
{
    p[d]=1;
    for(auto z:v[d])
    {
        if(z.f==pp||b[z.f])
            continue;
        dfs(z.f,d);
        p[d]+=p[z.f];
    }
}
ll center(ll d,ll pp)
{
    for(auto z:v[d])
    {
        if(z.f==pp||b[z.f])
            continue;
        if(p[z.f]*2>y)
            return center(z.f,d);
    }
    return d;
}
void add(ll d,ll pp,ll sum,ll h)
{
    if(sum>k)
        return;
    if(op[k-sum]||sum==k)
        ans=min(ans,op[k-sum]+h);
    for(auto z:v[d])
    {
        if(z.f==pp||b[z.f])
            continue;
        add(z.f,d,sum+z.s,h+1);
    }
}
void ok(ll d,ll pp,ll sum,ll h)
{
    if(op[sum])
        op[sum]=min(op[sum],h);
    else
        op[sum]=h;
    for(auto z:v[d])
    {
        if(z.f==pp||b[z.f])
            continue;
        ok(z.f,d,sum+z.s,h+1);
    }
}
ll best_path(ll n, ll K, ll H[][2], ll co[])
{
    k=K;
    if(k==0)
        return 0;
    v.resize(n);
    for(ll i=0; i<n-1; i++)
    {
        x=H[i][0], y=H[i][1];
        v[x].push_back({y,co[i]});
        v[y].push_back({x,co[i]});
    }
    dq.push_back(0);
    while(dq.size())
    {
        x=dq.front();
        dq.pop_front();
        dfs(x,-1);
        y=p[x];
        x=center(x,-1);
        op.clear();
        b[x]=1;
        for(auto z:v[x])
        {
            if(b[z.f])
                continue;
            add(z.f,x,z.s,1);
            ok(z.f,x,z.s,1);
            dq.push_back(z.f);
        }
    }
    if(ans>=n)
        ans=-1;
    return ans;
}

Subtask #1
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 312 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 308 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct

Subtask #2
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 312 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 308 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 3 ms 332 KB Output is correct
22 Correct 3 ms 332 KB Output is correct
23 Correct 3 ms 332 KB Output is correct
24 Correct 3 ms 460 KB Output is correct
25 Correct 3 ms 444 KB Output is correct
26 Correct 2 ms 460 KB Output is correct
27 Correct 2 ms 332 KB Output is correct
28 Correct 3 ms 460 KB Output is correct
29 Correct 3 ms 464 KB Output is correct
30 Correct 3 ms 460 KB Output is correct
31 Correct 3 ms 460 KB Output is correct
32 Correct 3 ms 444 KB Output is correct
33 Correct 4 ms 460 KB Output is correct
34 Correct 3 ms 460 KB Output is correct
35 Correct 3 ms 460 KB Output is correct
36 Correct 3 ms 460 KB Output is correct
37 Correct 3 ms 460 KB Output is correct
38 Correct 3 ms 460 KB Output is correct

Subtask #3
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 312 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 308 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 334 ms 8284 KB Output is correct
20 Correct 318 ms 8248 KB Output is correct
21 Correct 353 ms 8316 KB Output is correct
22 Correct 327 ms 8388 KB Output is correct
23 Correct 343 ms 8676 KB Output is correct
24 Correct 164 ms 8732 KB Output is correct
25 Correct 259 ms 13460 KB Output is correct
26 Correct 134 ms 15608 KB Output is correct
27 Correct 428 ms 16404 KB Output is correct
28 Correct 1006 ms 39924 KB Output is correct
29 Correct 1043 ms 38516 KB Output is correct
30 Correct 436 ms 16324 KB Output is correct
31 Correct 428 ms 16564 KB Output is correct
32 Correct 556 ms 16376 KB Output is correct
33 Correct 639 ms 15172 KB Output is correct
34 Correct 997 ms 24384 KB Output is correct

Subtask #4
57.0 / 57.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 312 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 308 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 3 ms 332 KB Output is correct
22 Correct 3 ms 332 KB Output is correct
23 Correct 3 ms 332 KB Output is correct
24 Correct 3 ms 460 KB Output is correct
25 Correct 3 ms 444 KB Output is correct
26 Correct 2 ms 460 KB Output is correct
27 Correct 2 ms 332 KB Output is correct
28 Correct 3 ms 460 KB Output is correct
29 Correct 3 ms 464 KB Output is correct
30 Correct 3 ms 460 KB Output is correct
31 Correct 3 ms 460 KB Output is correct
32 Correct 3 ms 444 KB Output is correct
33 Correct 4 ms 460 KB Output is correct
34 Correct 3 ms 460 KB Output is correct
35 Correct 3 ms 460 KB Output is correct
36 Correct 3 ms 460 KB Output is correct
37 Correct 3 ms 460 KB Output is correct
38 Correct 3 ms 460 KB Output is correct
39 Correct 334 ms 8284 KB Output is correct
40 Correct 318 ms 8248 KB Output is correct
41 Correct 353 ms 8316 KB Output is correct
42 Correct 327 ms 8388 KB Output is correct
43 Correct 343 ms 8676 KB Output is correct
44 Correct 164 ms 8732 KB Output is correct
45 Correct 259 ms 13460 KB Output is correct
46 Correct 134 ms 15608 KB Output is correct
47 Correct 428 ms 16404 KB Output is correct
48 Correct 1006 ms 39924 KB Output is correct
49 Correct 1043 ms 38516 KB Output is correct
50 Correct 436 ms 16324 KB Output is correct
51 Correct 428 ms 16564 KB Output is correct
52 Correct 556 ms 16376 KB Output is correct
53 Correct 639 ms 15172 KB Output is correct
54 Correct 997 ms 24384 KB Output is correct
55 Correct 31 ms 1492 KB Output is correct
56 Correct 20 ms 1152 KB Output is correct
57 Correct 204 ms 9680 KB Output is correct
58 Correct 53 ms 9656 KB Output is correct
59 Correct 465 ms 23368 KB Output is correct
60 Correct 1568 ms 48796 KB Output is correct
61 Correct 525 ms 20292 KB Output is correct
62 Correct 505 ms 19096 KB Output is correct
63 Correct 660 ms 19108 KB Output is correct
64 Correct 1997 ms 28356 KB Output is correct
65 Correct 1058 ms 29252 KB Output is correct
66 Correct 1325 ms 39236 KB Output is correct
67 Correct 159 ms 20384 KB Output is correct
68 Correct 796 ms 31036 KB Output is correct
69 Correct 784 ms 31156 KB Output is correct
70 Correct 680 ms 29764 KB Output is correct