Submission #878441

#	Time	Username	Problem	Language	Result	Execution time	Memory
878441		borisAngelov	Sprinkler (JOI22_sprinkler)	C++17	3 / 100	4041 ms	25248 KiB

sprinkler

#include <bits/stdc++.h>

using namespace std;

const int maxn = 200005;

int n, q;
long long mod;

vector<int> g[maxn];

long long height[maxn];

void dfs(int node, int par, int dep, long long mult)
{
    height[node] = (height[node] * mult) % mod;

    for (int i = 0; i < g[node].size(); ++i)
    {
        if (g[node][i] != par && dep >= 1)
        {
            dfs(g[node][i], node, dep - 1, mult);
        }
    }
}

void fastIO()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
}

int main()
{
    fastIO();

    cin >> n >> mod;

    for (int i = 1; i <= n - 1; ++i)
    {
        int x, y;
        cin >> x >> y;

        g[x].push_back(y);
        g[y].push_back(x);
    }

    for (int i = 1; i <= n; ++i)
    {
        cin >> height[i];
    }

    cin >> q;

    for (int i = 1; i <= q; ++i)
    {
        int type;
        cin >> type;

        if (type == 1)
        {
            int node, dist, mult;
            cin >> node >> dist >> mult;
            dfs(node, node, dist, mult);
        }
        else
        {
            int node;
            cin >> node;
            cout << height[node] << "\n";
        }
    }

    return 0;
}

Compilation message (stderr)

sprinkler.cpp: In function 'void dfs(int, int, int, long long int)':
sprinkler.cpp:18:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   18 |     for (int i = 0; i < g[node].size(); ++i)
      |                     ~~^~~~~~~~~~~~~~~~

• Subtask 1: 3 / 3
• Subtask 2: 0 / 9
• Subtask 3: 0 / 29
• Subtask 4: 0 / 12
• Subtask 5: 0 / 30
• Subtask 6: 0 / 17