oj.uz

답안 #91516

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
91516 2018-12-28T03:25:29 Z faustaadp 경주 (Race) (IOI11_race) C++17
100 / 100
 1071 ms 114648 KB 
#include "race.h"
#include<bits/stdc++.h>
#define ll long long
#define pb push_back
#define mp make_pair
#define fi first
#define se second
using namespace std;
ll n,k,has,b[202020],besar[202020],calon,me[1010101],i;
vector<ll> v[202020];
vector<ll> w[202020];
void dfs(ll aa,ll bb,ll cc)
{
    ll ii,ma=0;
    besar[aa]=1;
    for(ii=0;ii<v[aa].size();ii++)
        if((v[aa][ii]!=bb)&&(!b[v[aa][ii]]))
        {
            dfs(v[aa][ii],aa,cc);
            besar[aa]+=besar[v[aa][ii]];
            ma=max(ma,besar[v[aa][ii]]);
        }
    //cout<<aa<<" "<<ma<<" "<<(cc-besar[aa])<<"\n";
    if((ma<=(cc/2))&&((cc-besar[aa])<=(cc/2)))calon=aa;
}
void dfs2(ll aa,ll bb)
{
    ll ii,ma=0;
    besar[aa]=1;
    for(ii=0;ii<v[aa].size();ii++)
        if((v[aa][ii]!=bb)&&(!b[v[aa][ii]]))
        {
            dfs2(v[aa][ii],aa);
            besar[aa]+=besar[v[aa][ii]];
        }
   // cout<<aa<<" "<<ma<<" "<<(cc-besar[aa])<<"\n";
   // if((ma<=(cc/2))&&((cc-besar[aa])<=(cc/2)))calon=aa;
}
vector<pair<ll,ll> > isi;
void cari(ll aa,ll bb,ll cc,ll dd)
{
    if(dd>k)return ;
    //cout<<aa<<" "<<bb<<" "<<cc<<" "<<dd<<" "<<me[k-dd]<<"\n";
    if(me[k-dd]!=0)has=min(has,cc+me[k-dd]);
    isi.pb(mp(cc,dd));
    ll ii;
    for(ii=0;ii<v[aa].size();ii++)
        if((v[aa][ii]!=bb)&&(!b[v[aa][ii]]))
            cari(v[aa][ii],aa,cc+1,dd+w[aa][ii]);
}
void cari(ll aa,ll bb)
{
   // cout<<aa<<" "<<bb<<"\n";
    calon=-1;
    dfs(aa,aa,bb);
    ll C0=calon;
   // cout<<calon<<"\n";
    ll ii,jj;
    vector<ll> ini;
    vector<ll> BS;
    for(ii=0;ii<v[calon].size();ii++)
    {
        if(b[v[calon][ii]])continue;
        //cout<<calon<<" "<<v[calon][ii]<<" x\n";
        isi.clear();
        cari(v[calon][ii],calon,1,w[calon][ii]);
        for(jj=0;jj<isi.size();jj++)
        {
            //cout<<jj<<"->"<<k-isi[jj].se<<"\n";
            if((me[isi[jj].se]==0)||(me[isi[jj].se]>isi[jj].fi))
                me[isi[jj].se]=isi[jj].fi;
            ini.pb(isi[jj].se);
        }
        if(me[k]!=0)has=min(has,me[k]);
    }
    for(ii=0;ii<ini.size();ii++)
        me[ini[ii]]=0;
    b[calon]=1;
    dfs2(calon,calon);
    ll te=0;
    for(ii=0;ii<v[C0].size();ii++)
    {
        if(b[v[C0][ii]])continue;
        //cout<<calon<<" "<<v[calon][ii]<<" z\n";
        cari(v[C0][ii],besar[v[C0][ii]]);
        //te++;
    }
}
int best_path(int N, int K, int H[][2], int L[])
{
    n=N;
    k=K;
    has=1e18;
    for(i=0;i<(n-1);i++)
    {
        v[H[i][0]].pb(H[i][1]);
        w[H[i][0]].pb(L[i]);
        v[H[i][1]].pb(H[i][0]);
        w[H[i][1]].pb(L[i]);
    }
    cari(0,N);
    if(has==1e18)has=-1;
    return has;
}

Compilation message

race.cpp: In function 'void dfs(long long int, long long int, long long int)':
race.cpp:16:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(ii=0;ii<v[aa].size();ii++)
              ~~^~~~~~~~~~~~~
race.cpp: In function 'void dfs2(long long int, long long int)':
race.cpp:30:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(ii=0;ii<v[aa].size();ii++)
              ~~^~~~~~~~~~~~~
race.cpp:28:11: warning: unused variable 'ma' [-Wunused-variable]
     ll ii,ma=0;
           ^~
race.cpp: In function 'void cari(long long int, long long int, long long int, long long int)':
race.cpp:47:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(ii=0;ii<v[aa].size();ii++)
              ~~^~~~~~~~~~~~~
race.cpp: In function 'void cari(long long int, long long int)':
race.cpp:61:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(ii=0;ii<v[calon].size();ii++)
              ~~^~~~~~~~~~~~~~~~
race.cpp:67:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(jj=0;jj<isi.size();jj++)
                  ~~^~~~~~~~~~~
race.cpp:76:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(ii=0;ii<ini.size();ii++)
              ~~^~~~~~~~~~~
race.cpp:81:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(ii=0;ii<v[C0].size();ii++)
              ~~^~~~~~~~~~~~~
race.cpp:80:8: warning: unused variable 'te' [-Wunused-variable]
     ll te=0;
        ^~

Subtask #1
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 10 ms 9976 KB Output is correct
2 Correct 11 ms 10080 KB Output is correct
3 Correct 10 ms 10152 KB Output is correct
4 Correct 10 ms 10280 KB Output is correct
5 Correct 10 ms 10280 KB Output is correct
6 Correct 10 ms 10284 KB Output is correct
7 Correct 8 ms 10288 KB Output is correct
8 Correct 8 ms 10296 KB Output is correct
9 Correct 11 ms 10364 KB Output is correct
10 Correct 10 ms 10364 KB Output is correct
11 Correct 10 ms 10364 KB Output is correct
12 Correct 10 ms 10364 KB Output is correct
13 Correct 10 ms 10372 KB Output is correct
14 Correct 10 ms 10376 KB Output is correct
15 Correct 10 ms 10380 KB Output is correct
16 Correct 10 ms 10380 KB Output is correct
17 Correct 10 ms 10388 KB Output is correct
18 Correct 11 ms 10520 KB Output is correct

Subtask #2
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 10 ms 9976 KB Output is correct
2 Correct 11 ms 10080 KB Output is correct
3 Correct 10 ms 10152 KB Output is correct
4 Correct 10 ms 10280 KB Output is correct
5 Correct 10 ms 10280 KB Output is correct
6 Correct 10 ms 10284 KB Output is correct
7 Correct 8 ms 10288 KB Output is correct
8 Correct 8 ms 10296 KB Output is correct
9 Correct 11 ms 10364 KB Output is correct
10 Correct 10 ms 10364 KB Output is correct
11 Correct 10 ms 10364 KB Output is correct
12 Correct 10 ms 10364 KB Output is correct
13 Correct 10 ms 10372 KB Output is correct
14 Correct 10 ms 10376 KB Output is correct
15 Correct 10 ms 10380 KB Output is correct
16 Correct 10 ms 10380 KB Output is correct
17 Correct 10 ms 10388 KB Output is correct
18 Correct 11 ms 10520 KB Output is correct
19 Correct 8 ms 10520 KB Output is correct
20 Correct 9 ms 10520 KB Output is correct
21 Correct 11 ms 10536 KB Output is correct
22 Correct 16 ms 13876 KB Output is correct
23 Correct 15 ms 13876 KB Output is correct
24 Correct 16 ms 14708 KB Output is correct
25 Correct 15 ms 14708 KB Output is correct
26 Correct 14 ms 14708 KB Output is correct
27 Correct 11 ms 14708 KB Output is correct
28 Correct 13 ms 14708 KB Output is correct
29 Correct 14 ms 14708 KB Output is correct
30 Correct 14 ms 14708 KB Output is correct
31 Correct 15 ms 14708 KB Output is correct
32 Correct 15 ms 14708 KB Output is correct
33 Correct 17 ms 15524 KB Output is correct
34 Correct 16 ms 15524 KB Output is correct
35 Correct 17 ms 15812 KB Output is correct
36 Correct 18 ms 16084 KB Output is correct
37 Correct 16 ms 16084 KB Output is correct
38 Correct 14 ms 16084 KB Output is correct

Subtask #3
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 10 ms 9976 KB Output is correct
2 Correct 11 ms 10080 KB Output is correct
3 Correct 10 ms 10152 KB Output is correct
4 Correct 10 ms 10280 KB Output is correct
5 Correct 10 ms 10280 KB Output is correct
6 Correct 10 ms 10284 KB Output is correct
7 Correct 8 ms 10288 KB Output is correct
8 Correct 8 ms 10296 KB Output is correct
9 Correct 11 ms 10364 KB Output is correct
10 Correct 10 ms 10364 KB Output is correct
11 Correct 10 ms 10364 KB Output is correct
12 Correct 10 ms 10364 KB Output is correct
13 Correct 10 ms 10372 KB Output is correct
14 Correct 10 ms 10376 KB Output is correct
15 Correct 10 ms 10380 KB Output is correct
16 Correct 10 ms 10380 KB Output is correct
17 Correct 10 ms 10388 KB Output is correct
18 Correct 11 ms 10520 KB Output is correct
19 Correct 283 ms 22644 KB Output is correct
20 Correct 215 ms 23868 KB Output is correct
21 Correct 252 ms 26080 KB Output is correct
22 Correct 271 ms 28356 KB Output is correct
23 Correct 220 ms 28356 KB Output is correct
24 Correct 149 ms 29520 KB Output is correct
25 Correct 333 ms 33772 KB Output is correct
26 Correct 164 ms 41040 KB Output is correct
27 Correct 341 ms 45440 KB Output is correct
28 Correct 798 ms 61396 KB Output is correct
29 Correct 899 ms 63488 KB Output is correct
30 Correct 377 ms 63488 KB Output is correct
31 Correct 393 ms 63488 KB Output is correct
32 Correct 505 ms 63488 KB Output is correct
33 Correct 700 ms 63488 KB Output is correct
34 Correct 616 ms 64680 KB Output is correct

Subtask #4
57.0 / 57.0

# 결과 실행 시간 메모리 Grader output
1 Correct 10 ms 9976 KB Output is correct
2 Correct 11 ms 10080 KB Output is correct
3 Correct 10 ms 10152 KB Output is correct
4 Correct 10 ms 10280 KB Output is correct
5 Correct 10 ms 10280 KB Output is correct
6 Correct 10 ms 10284 KB Output is correct
7 Correct 8 ms 10288 KB Output is correct
8 Correct 8 ms 10296 KB Output is correct
9 Correct 11 ms 10364 KB Output is correct
10 Correct 10 ms 10364 KB Output is correct
11 Correct 10 ms 10364 KB Output is correct
12 Correct 10 ms 10364 KB Output is correct
13 Correct 10 ms 10372 KB Output is correct
14 Correct 10 ms 10376 KB Output is correct
15 Correct 10 ms 10380 KB Output is correct
16 Correct 10 ms 10380 KB Output is correct
17 Correct 10 ms 10388 KB Output is correct
18 Correct 11 ms 10520 KB Output is correct
19 Correct 8 ms 10520 KB Output is correct
20 Correct 9 ms 10520 KB Output is correct
21 Correct 11 ms 10536 KB Output is correct
22 Correct 16 ms 13876 KB Output is correct
23 Correct 15 ms 13876 KB Output is correct
24 Correct 16 ms 14708 KB Output is correct
25 Correct 15 ms 14708 KB Output is correct
26 Correct 14 ms 14708 KB Output is correct
27 Correct 11 ms 14708 KB Output is correct
28 Correct 13 ms 14708 KB Output is correct
29 Correct 14 ms 14708 KB Output is correct
30 Correct 14 ms 14708 KB Output is correct
31 Correct 15 ms 14708 KB Output is correct
32 Correct 15 ms 14708 KB Output is correct
33 Correct 17 ms 15524 KB Output is correct
34 Correct 16 ms 15524 KB Output is correct
35 Correct 17 ms 15812 KB Output is correct
36 Correct 18 ms 16084 KB Output is correct
37 Correct 16 ms 16084 KB Output is correct
38 Correct 14 ms 16084 KB Output is correct
39 Correct 283 ms 22644 KB Output is correct
40 Correct 215 ms 23868 KB Output is correct
41 Correct 252 ms 26080 KB Output is correct
42 Correct 271 ms 28356 KB Output is correct
43 Correct 220 ms 28356 KB Output is correct
44 Correct 149 ms 29520 KB Output is correct
45 Correct 333 ms 33772 KB Output is correct
46 Correct 164 ms 41040 KB Output is correct
47 Correct 341 ms 45440 KB Output is correct
48 Correct 798 ms 61396 KB Output is correct
49 Correct 899 ms 63488 KB Output is correct
50 Correct 377 ms 63488 KB Output is correct
51 Correct 393 ms 63488 KB Output is correct
52 Correct 505 ms 63488 KB Output is correct
53 Correct 700 ms 63488 KB Output is correct
54 Correct 616 ms 64680 KB Output is correct
55 Correct 22 ms 64680 KB Output is correct
56 Correct 24 ms 64680 KB Output is correct
57 Correct 127 ms 64680 KB Output is correct
58 Correct 52 ms 64680 KB Output is correct
59 Correct 156 ms 70592 KB Output is correct
60 Correct 1071 ms 95964 KB Output is correct
61 Correct 437 ms 95964 KB Output is correct
62 Correct 454 ms 95964 KB Output is correct
63 Correct 426 ms 95964 KB Output is correct
64 Correct 813 ms 95964 KB Output is correct
65 Correct 465 ms 95964 KB Output is correct
66 Correct 850 ms 111208 KB Output is correct
67 Correct 297 ms 111208 KB Output is correct
68 Correct 485 ms 111208 KB Output is correct
69 Correct 573 ms 112444 KB Output is correct
70 Correct 542 ms 114648 KB Output is correct