oj.uz

답안 #640575

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
640575 2022-09-15T01:19:03 Z Hiennoob123 Paprike (COI18_paprike) C++14
100 / 100
 52 ms 21452 KB 
#include<bits/stdc++.h>
#define ll long long
#define int long long
#define ld double
#define cd complex<ld>
#define pll pair<ll,ll>
#define pld pair<ld,ld>
#define pb push_back
#define mp make_pair
#define fi first
#define se second
using namespace std ;
vector<ll> T[300005] ;
bool check[300005] ;
ll val[300005] ;
ll A[300005] ;
ll n , k ;
ll ans = 0 ;
void dfs(ll v , ll par)
{
    vector<ll> save ;
    val[v] = A[v] ;
    for(int i = 0 ; i< T[v].size() ; i++)
    {
        if(T[v][i]==par) continue ;
        dfs(T[v][i] , v) ;
        save.push_back(val[T[v][i]]) ;
    }
    sort(save.begin() , save.end()) ;
    for(int i = 0 ; i< save.size() ; i++)
    {
        if(val[v]+save[i]>k)
        {
            ans++ ;
        }
        else val[v] += save[i] ;
    }
}
void solve()
{
    cin >> n>> k ;
    for(int i = 1 ; i<= n ; i++) cin >> A[i] ;
    for(int i = 1 ; i< n ; i++)
    {
        ll a,  b ;
        cin >> a >> b ;
        T[a].push_back(b) ;
        T[b].push_back(a) ;
    }
    dfs(1 , 0) ;
    cout << ans ;
}
signed main()
{
    ios_base::sync_with_stdio(0) ; cin.tie(0) ; cout.tie(0) ;
    //freopen("IN.txt","r",stdin) ;
    //freopen("LINES.inp" , "r" , stdin) ;
    //freopen("LINES.out" , "w" , stdout) ;
    //freopen("OUT.txt" , "w" , stdout) ;
    int t = 1 ;
    //cout << t << " " << n << "\n" ;
    for(int i = 1 ; i<= t ; i++)
    {
        solve();
    }
}

Compilation message

paprike.cpp: In function 'void dfs(long long int, long long int)':
paprike.cpp:23:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   23 |     for(int i = 0 ; i< T[v].size() ; i++)
      |                     ~^~~~~~~~~~~~~
paprike.cpp:30:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |     for(int i = 0 ; i< save.size() ; i++)
      |                     ~^~~~~~~~~~~~~

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 7252 KB Output is correct
2 Correct 4 ms 7252 KB Output is correct
3 Correct 4 ms 7252 KB Output is correct
4 Correct 4 ms 7252 KB Output is correct
5 Correct 4 ms 7252 KB Output is correct
6 Correct 4 ms 7252 KB Output is correct
7 Correct 4 ms 7252 KB Output is correct
8 Correct 4 ms 7252 KB Output is correct
9 Correct 3 ms 7252 KB Output is correct
10 Correct 4 ms 7252 KB Output is correct
11 Correct 4 ms 7252 KB Output is correct
12 Correct 3 ms 7252 KB Output is correct
13 Correct 4 ms 7380 KB Output is correct
14 Correct 4 ms 7376 KB Output is correct
15 Correct 4 ms 7252 KB Output is correct
16 Correct 4 ms 7252 KB Output is correct
17 Correct 4 ms 7252 KB Output is correct
18 Correct 3 ms 7252 KB Output is correct
19 Correct 4 ms 7380 KB Output is correct
20 Correct 3 ms 7252 KB Output is correct
21 Correct 4 ms 7252 KB Output is correct

Subtask #2
13.0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 42 ms 21404 KB Output is correct
2 Correct 44 ms 21452 KB Output is correct
3 Correct 52 ms 21444 KB Output is correct
4 Correct 44 ms 21336 KB Output is correct
5 Correct 44 ms 21412 KB Output is correct
6 Correct 41 ms 21400 KB Output is correct
7 Correct 42 ms 21356 KB Output is correct
8 Correct 39 ms 21332 KB Output is correct

Subtask #3
27.0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 7252 KB Output is correct
2 Correct 4 ms 7252 KB Output is correct
3 Correct 4 ms 7252 KB Output is correct
4 Correct 4 ms 7252 KB Output is correct
5 Correct 4 ms 7252 KB Output is correct
6 Correct 4 ms 7252 KB Output is correct
7 Correct 4 ms 7252 KB Output is correct
8 Correct 4 ms 7252 KB Output is correct
9 Correct 3 ms 7252 KB Output is correct
10 Correct 4 ms 7252 KB Output is correct
11 Correct 4 ms 7252 KB Output is correct
12 Correct 3 ms 7252 KB Output is correct
13 Correct 4 ms 7380 KB Output is correct
14 Correct 4 ms 7376 KB Output is correct
15 Correct 4 ms 7252 KB Output is correct
16 Correct 4 ms 7252 KB Output is correct
17 Correct 4 ms 7252 KB Output is correct
18 Correct 3 ms 7252 KB Output is correct
19 Correct 4 ms 7380 KB Output is correct
20 Correct 3 ms 7252 KB Output is correct
21 Correct 4 ms 7252 KB Output is correct
22 Correct 4 ms 7380 KB Output is correct
23 Correct 4 ms 7380 KB Output is correct
24 Correct 6 ms 7384 KB Output is correct
25 Correct 4 ms 7340 KB Output is correct
26 Correct 5 ms 7380 KB Output is correct
27 Correct 6 ms 7400 KB Output is correct
28 Correct 4 ms 7380 KB Output is correct
29 Correct 4 ms 7380 KB Output is correct
30 Correct 5 ms 7380 KB Output is correct
31 Correct 5 ms 7404 KB Output is correct
32 Correct 4 ms 7340 KB Output is correct
33 Correct 4 ms 7380 KB Output is correct
34 Correct 4 ms 7380 KB Output is correct
35 Correct 4 ms 7380 KB Output is correct
36 Correct 4 ms 7380 KB Output is correct
37 Correct 4 ms 7380 KB Output is correct
38 Correct 4 ms 7380 KB Output is correct

Subtask #4
49.0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 7252 KB Output is correct
2 Correct 4 ms 7252 KB Output is correct
3 Correct 4 ms 7252 KB Output is correct
4 Correct 4 ms 7252 KB Output is correct
5 Correct 4 ms 7252 KB Output is correct
6 Correct 4 ms 7252 KB Output is correct
7 Correct 4 ms 7252 KB Output is correct
8 Correct 4 ms 7252 KB Output is correct
9 Correct 3 ms 7252 KB Output is correct
10 Correct 4 ms 7252 KB Output is correct
11 Correct 4 ms 7252 KB Output is correct
12 Correct 3 ms 7252 KB Output is correct
13 Correct 4 ms 7380 KB Output is correct
14 Correct 4 ms 7376 KB Output is correct
15 Correct 4 ms 7252 KB Output is correct
16 Correct 4 ms 7252 KB Output is correct
17 Correct 4 ms 7252 KB Output is correct
18 Correct 3 ms 7252 KB Output is correct
19 Correct 4 ms 7380 KB Output is correct
20 Correct 3 ms 7252 KB Output is correct
21 Correct 4 ms 7252 KB Output is correct
22 Correct 42 ms 21404 KB Output is correct
23 Correct 44 ms 21452 KB Output is correct
24 Correct 52 ms 21444 KB Output is correct
25 Correct 44 ms 21336 KB Output is correct
26 Correct 44 ms 21412 KB Output is correct
27 Correct 41 ms 21400 KB Output is correct
28 Correct 42 ms 21356 KB Output is correct
29 Correct 39 ms 21332 KB Output is correct
30 Correct 4 ms 7380 KB Output is correct
31 Correct 4 ms 7380 KB Output is correct
32 Correct 6 ms 7384 KB Output is correct
33 Correct 4 ms 7340 KB Output is correct
34 Correct 5 ms 7380 KB Output is correct
35 Correct 6 ms 7400 KB Output is correct
36 Correct 4 ms 7380 KB Output is correct
37 Correct 4 ms 7380 KB Output is correct
38 Correct 5 ms 7380 KB Output is correct
39 Correct 5 ms 7404 KB Output is correct
40 Correct 4 ms 7340 KB Output is correct
41 Correct 4 ms 7380 KB Output is correct
42 Correct 4 ms 7380 KB Output is correct
43 Correct 4 ms 7380 KB Output is correct
44 Correct 4 ms 7380 KB Output is correct
45 Correct 4 ms 7380 KB Output is correct
46 Correct 4 ms 7380 KB Output is correct
47 Correct 44 ms 15932 KB Output is correct
48 Correct 43 ms 14404 KB Output is correct
49 Correct 52 ms 13740 KB Output is correct
50 Correct 46 ms 13616 KB Output is correct
51 Correct 50 ms 12664 KB Output is correct
52 Correct 51 ms 12680 KB Output is correct
53 Correct 50 ms 12584 KB Output is correct
54 Correct 50 ms 12632 KB Output is correct
55 Correct 46 ms 12600 KB Output is correct
56 Correct 47 ms 12664 KB Output is correct
57 Correct 37 ms 14012 KB Output is correct