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Submission #930524

# Submission time Handle Problem Language Result Execution time Memory
930524 2024-02-20T05:37:09 Z sleepntsheep Paprike (COI18_paprike) C++17
100 / 100
 37 ms 18016 KB 
#include <stdio.h>
#include <algorithm>
#include <vector>
#include <string>
#define N 100003

int n, K, a[N];
std::basic_string<int> g[N];

int dp[N];
long long b[N];

void dfs(int u, int p)
{
    b[u] += a[u];

    std::vector<long long> bot;

    for (int v : g[u]) if ( v - p )
    {
        dfs(v, u);
        bot.push_back(b[v]);
        dp[u] += dp[v];
        b[u] += b[v];
    }
    std::sort(bot.begin(), bot.end());

    while (b[u] > K)
    {
        b[u] -= bot.back();
        ++dp[u];
        bot.pop_back();
    }
}

int main()
{
    scanf("%d%d", &n, &K);
    for (int i = 1; i <= n; ++i) scanf("%d", a+i);
    for (int u, v, i = 1; i < n; ++i) scanf("%d%d", &u, &v), g[u].push_back(v), g[v].push_back(u);
    dfs(1, 1);
    printf("%d", dp[1]);
    return 0;
}

Compilation message

paprike.cpp: In function 'int main()':
paprike.cpp:38:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   38 |     scanf("%d%d", &n, &K);
      |     ~~~~~^~~~~~~~~~~~~~~~
paprike.cpp:39:39: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   39 |     for (int i = 1; i <= n; ++i) scanf("%d", a+i);
      |                                  ~~~~~^~~~~~~~~~~
paprike.cpp:40:44: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   40 |     for (int u, v, i = 1; i < n; ++i) scanf("%d%d", &u, &v), g[u].push_back(v), g[v].push_back(u);
      |                                       ~~~~~^~~~~~~~~~~~~~~~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 3672 KB Output is correct
2 Correct 2 ms 3676 KB Output is correct
3 Correct 1 ms 3676 KB Output is correct
4 Correct 1 ms 3676 KB Output is correct
5 Correct 1 ms 3676 KB Output is correct
6 Correct 1 ms 3676 KB Output is correct
7 Correct 1 ms 3676 KB Output is correct
8 Correct 1 ms 3676 KB Output is correct
9 Correct 1 ms 3676 KB Output is correct
10 Correct 1 ms 3676 KB Output is correct
11 Correct 1 ms 3676 KB Output is correct
12 Correct 1 ms 3672 KB Output is correct
13 Correct 2 ms 3676 KB Output is correct
14 Correct 2 ms 3676 KB Output is correct
15 Correct 2 ms 3676 KB Output is correct
16 Correct 1 ms 3676 KB Output is correct
17 Correct 1 ms 3676 KB Output is correct
18 Correct 1 ms 3676 KB Output is correct
19 Correct 1 ms 3676 KB Output is correct
20 Correct 1 ms 3676 KB Output is correct
21 Correct 1 ms 3928 KB Output is correct

Subtask #2
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 31 ms 18012 KB Output is correct
2 Correct 33 ms 17896 KB Output is correct
3 Correct 31 ms 18016 KB Output is correct
4 Correct 37 ms 18000 KB Output is correct
5 Correct 30 ms 17748 KB Output is correct
6 Correct 31 ms 17748 KB Output is correct
7 Correct 31 ms 17744 KB Output is correct
8 Correct 31 ms 17384 KB Output is correct

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 3672 KB Output is correct
2 Correct 2 ms 3676 KB Output is correct
3 Correct 1 ms 3676 KB Output is correct
4 Correct 1 ms 3676 KB Output is correct
5 Correct 1 ms 3676 KB Output is correct
6 Correct 1 ms 3676 KB Output is correct
7 Correct 1 ms 3676 KB Output is correct
8 Correct 1 ms 3676 KB Output is correct
9 Correct 1 ms 3676 KB Output is correct
10 Correct 1 ms 3676 KB Output is correct
11 Correct 1 ms 3676 KB Output is correct
12 Correct 1 ms 3672 KB Output is correct
13 Correct 2 ms 3676 KB Output is correct
14 Correct 2 ms 3676 KB Output is correct
15 Correct 2 ms 3676 KB Output is correct
16 Correct 1 ms 3676 KB Output is correct
17 Correct 1 ms 3676 KB Output is correct
18 Correct 1 ms 3676 KB Output is correct
19 Correct 1 ms 3676 KB Output is correct
20 Correct 1 ms 3676 KB Output is correct
21 Correct 1 ms 3928 KB Output is correct
22 Correct 2 ms 3676 KB Output is correct
23 Correct 1 ms 3676 KB Output is correct
24 Correct 1 ms 3748 KB Output is correct
25 Correct 1 ms 3676 KB Output is correct
26 Correct 1 ms 3736 KB Output is correct
27 Correct 2 ms 3672 KB Output is correct
28 Correct 2 ms 3928 KB Output is correct
29 Correct 1 ms 3676 KB Output is correct
30 Correct 2 ms 3676 KB Output is correct
31 Correct 1 ms 3676 KB Output is correct
32 Correct 1 ms 3728 KB Output is correct
33 Correct 2 ms 3676 KB Output is correct
34 Correct 2 ms 3676 KB Output is correct
35 Correct 1 ms 3676 KB Output is correct
36 Correct 2 ms 3676 KB Output is correct
37 Correct 1 ms 3752 KB Output is correct
38 Correct 1 ms 3676 KB Output is correct

Subtask #4
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 3672 KB Output is correct
2 Correct 2 ms 3676 KB Output is correct
3 Correct 1 ms 3676 KB Output is correct
4 Correct 1 ms 3676 KB Output is correct
5 Correct 1 ms 3676 KB Output is correct
6 Correct 1 ms 3676 KB Output is correct
7 Correct 1 ms 3676 KB Output is correct
8 Correct 1 ms 3676 KB Output is correct
9 Correct 1 ms 3676 KB Output is correct
10 Correct 1 ms 3676 KB Output is correct
11 Correct 1 ms 3676 KB Output is correct
12 Correct 1 ms 3672 KB Output is correct
13 Correct 2 ms 3676 KB Output is correct
14 Correct 2 ms 3676 KB Output is correct
15 Correct 2 ms 3676 KB Output is correct
16 Correct 1 ms 3676 KB Output is correct
17 Correct 1 ms 3676 KB Output is correct
18 Correct 1 ms 3676 KB Output is correct
19 Correct 1 ms 3676 KB Output is correct
20 Correct 1 ms 3676 KB Output is correct
21 Correct 1 ms 3928 KB Output is correct
22 Correct 31 ms 18012 KB Output is correct
23 Correct 33 ms 17896 KB Output is correct
24 Correct 31 ms 18016 KB Output is correct
25 Correct 37 ms 18000 KB Output is correct
26 Correct 30 ms 17748 KB Output is correct
27 Correct 31 ms 17748 KB Output is correct
28 Correct 31 ms 17744 KB Output is correct
29 Correct 31 ms 17384 KB Output is correct
30 Correct 2 ms 3676 KB Output is correct
31 Correct 1 ms 3676 KB Output is correct
32 Correct 1 ms 3748 KB Output is correct
33 Correct 1 ms 3676 KB Output is correct
34 Correct 1 ms 3736 KB Output is correct
35 Correct 2 ms 3672 KB Output is correct
36 Correct 2 ms 3928 KB Output is correct
37 Correct 1 ms 3676 KB Output is correct
38 Correct 2 ms 3676 KB Output is correct
39 Correct 1 ms 3676 KB Output is correct
40 Correct 1 ms 3728 KB Output is correct
41 Correct 2 ms 3676 KB Output is correct
42 Correct 2 ms 3676 KB Output is correct
43 Correct 1 ms 3676 KB Output is correct
44 Correct 2 ms 3676 KB Output is correct
45 Correct 1 ms 3752 KB Output is correct
46 Correct 1 ms 3676 KB Output is correct
47 Correct 29 ms 11352 KB Output is correct
48 Correct 29 ms 9556 KB Output is correct
49 Correct 29 ms 9040 KB Output is correct
50 Correct 28 ms 8536 KB Output is correct
51 Correct 31 ms 7508 KB Output is correct
52 Correct 30 ms 7516 KB Output is correct
53 Correct 29 ms 7508 KB Output is correct
54 Correct 31 ms 7604 KB Output is correct
55 Correct 29 ms 7000 KB Output is correct
56 Correct 28 ms 7000 KB Output is correct
57 Correct 24 ms 8140 KB Output is correct