oj.uz

Submission #675484

# Submission time Handle Problem Language Result Execution time Memory
675484 2022-12-27T10:38:05 Z messiuuuuu Uzastopni (COCI15_uzastopni) C++17
0 / 160
 152 ms 65536 KB 
///
#include<bits/stdc++.h>
#define task "C"
#define ll long long
#define ld long double
#define fi first
#define se second
#define pb push_back
using namespace std;
const int MAXN = 1e4 + 5;
const ll INF = 1e18 + 5;

int n;
int c[MAXN];
vector<int> Adj[MAXN];

void Input()
{
    cin >> n;
    for (int i = 1; i <= n; i++)
        cin >> c[i];
    for (int i = 1; i < n; i++)
    {
        int u, v;
        cin >> u >> v;
        Adj[u].pb(v);
        Adj[v].pb(u);
    }
}

bitset<105> dp[MAXN][105], t[105];
vector<int> pl[MAXN][105], pr[MAXN][105];

void DFS(int u, int par)
{
    for (int v : Adj[u])
    {
        if (v == par)
            continue;
        DFS(v, u);
        for (int l = 1; l <= 100; l++)
            for (int r = l; r <= 100; r++)
                if (dp[v][l][r])
                {
                    pl[u][l].pb(r);
                    pr[u][r].pb(l);
                }
    }
    for (int i = 1; i <= 100; i++)
        t[i].reset();
    t[c[u] - 1][c[u]] = t[c[u] + 1][c[u]] = 1;
    for (int i = 100; i >= c[u] + 1; i--)
    {
        for (int j : pl[u][i])
        {
            t[i][j] = 1;
            t[i] |= t[j + 1];
        }
    }
    for (int i = 1; i <= c[u] - 1; i++)
    {
        for (int j : pr[u][i])
        {
            t[i][j] = 1;
            t[i] |= t[j - 1];
        }
    }
    for (int x = 1; x <= 100; x++)
    {
        if (t[c[u] - 1][x] == 0)
            continue;
        for (int y = x; y <= 100; y++)
        {
            if (t[c[u] + 1][y] == 0)
                continue;
            dp[u][x][y] = 1;
        }
    }
}

void Solve()
{
    DFS(1, 0);
    int res = 0;
    for (int i = 1; i <= 100; i++)
    {
        for (int j = i; j <= 100; j++)
        {
            //if (dp[1][i][j])
             //   cout << i << ' ' << j << '\n';
            res += dp[1][i][j];
        }
    }
    cout << res;
}

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    if (fopen(task".INP","r"))
    {
        freopen(task".INP","r",stdin);
        //freopen(task".OUT","w",stdout);
    }
    Input();
    Solve();
}

Compilation message

uzastopni.cpp: In function 'int main()':
uzastopni.cpp:103:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  103 |         freopen(task".INP","r",stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~

Subtask #1
0 / 160.0

# Verdict Execution time Memory Grader output
1 Runtime error 23 ms 49972 KB Memory limit exceeded
2 Runtime error 26 ms 49976 KB Memory limit exceeded
3 Runtime error 24 ms 50004 KB Memory limit exceeded
4 Runtime error 25 ms 49996 KB Memory limit exceeded
5 Runtime error 25 ms 50088 KB Memory limit exceeded
6 Runtime error 26 ms 50004 KB Memory limit exceeded
7 Runtime error 26 ms 50132 KB Memory limit exceeded
8 Runtime error 26 ms 50020 KB Memory limit exceeded
9 Runtime error 25 ms 49980 KB Memory limit exceeded
10 Runtime error 31 ms 49976 KB Memory limit exceeded
11 Runtime error 133 ms 65536 KB Execution killed with signal 9
12 Runtime error 132 ms 65536 KB Execution killed with signal 9
13 Runtime error 131 ms 65536 KB Execution killed with signal 9
14 Runtime error 102 ms 65536 KB Execution killed with signal 9
15 Runtime error 101 ms 65536 KB Execution killed with signal 9
16 Runtime error 101 ms 65536 KB Execution killed with signal 9
17 Runtime error 134 ms 65536 KB Execution killed with signal 9
18 Runtime error 133 ms 65536 KB Execution killed with signal 9
19 Runtime error 152 ms 65536 KB Execution killed with signal 9
20 Runtime error 150 ms 65536 KB Execution killed with signal 9