Submission #888607

#	Time	Username	Problem	Language	Result	Execution time	Memory
888607		fanwen	Nestabilnost (COI23_nestabilnost)	C++17	41 / 100	194 ms	206648 KiB

code1

#include <bits/stdc++.h>

#define fi first
#define se second
#define file(name) if (fopen(name".inp", "r")) { freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout); }

using namespace std;

const int MAX = 3e5 + 5;

int n, a[MAX], f[MAX];
vector <int> adj[MAX];

namespace sub1 {
    bool check() {
        return n <= 5000;
    }
    long long dp[5005][5005], ans[MAX];

    void dfs(int u, int p) {
        for (int i = a[u] + 1; i <= n; ++i) dp[u][i] = f[i];
        for (auto v : adj[u]) if(v != p) {
            dfs(v, u);
            for (int k = a[u] + 1; k <= n; ++k) {
                if(a[v] == (a[u] + 1) % k) {
                    dp[u][k] += min(ans[v], dp[v][k] - f[k]);
                } else {
                    dp[u][k] += ans[v];
                }
            }
        }
        ans[u] = *min_element(dp[u] + 1, dp[u] + n + 1);
    }
    void solve() {
        memset(dp, 0x3f, sizeof dp);
        dfs(1, 0);
        cout << ans[1]; exit(0);
    }
}

void you_make_it(void) {
    cin >> n;
    for (int i = 1; i <= n; ++i) cin >> a[i];
    for (int i = 1; i <= n; ++i) cin >> f[i];

    for (int i = 1; i < n; ++i) {
        int u, v; cin >> u >> v;
        adj[u].push_back(v);
        adj[v].push_back(u);
    }

    if(sub1::check()) sub1::solve();
}

signed main() {

#ifdef LOCAL
    freopen("TASK.inp", "r", stdin);
    freopen("TASK.out", "w", stdout);
#endif
    file("nestabilnost");
    auto start_time = chrono::steady_clock::now();

    cin.tie(0), cout.tie(0) -> sync_with_stdio(0);

    you_make_it();

    auto end_time = chrono::steady_clock::now();

    cerr << "\nExecution time : " << chrono::duration_cast <chrono::milliseconds> (end_time - start_time).count() << "[ms]" << endl;

    return (0 ^ 0);
}

// Dream it. Wish it. Do it.

Compilation message (stderr)

code1.cpp: In function 'int main()':
code1.cpp:5:57: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    5 | #define file(name) if (fopen(name".inp", "r")) { freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout); }
      |                                                  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
code1.cpp:61:5: note: in expansion of macro 'file'
   61 |     file("nestabilnost");
      |     ^~~~
code1.cpp:5:90: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    5 | #define file(name) if (fopen(name".inp", "r")) { freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout); }
      |                                                                                   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
code1.cpp:61:5: note: in expansion of macro 'file'
   61 |     file("nestabilnost");
      |     ^~~~

• Subtask 1: 12 / 12
• Subtask 2: 0 / 20
• Subtask 3: 7 / 7
• Subtask 4: 22 / 22
• Subtask 5: 0 / 39