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Submission #675263

# Submission time Handle Problem Language Result Execution time Memory
675263 2022-12-27T03:40:20 Z tamthegod Uzastopni (COCI15_uzastopni) C++14
80 / 160
 125 ms 33572 KB 
// Make the best become better
// No room for laziness
#include<bits/stdc++.h>

#define pb push_back
#define fi first
#define se second
using namespace std;
using ll = long long;
using ld = long double;
using ull = unsigned long long;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
const int maxN = 1e4 + 5;
const int maxV = 105;
const int mod = 1e9 + 7;
const ll oo = 1e18;
int n;
int a[maxN];
vector<int> adj[maxN];
int deg[maxN];
int root;
bool can[maxN];
bitset<maxV> bs[maxN][maxV];
void ReadInput()
{
    cin >> n;
    for(int i=1; i<=n; i++)
        cin >> a[i];
    for(int i=1; i<n; i++)
    {
        int u, v;
        cin >> u >> v;
        adj[u].pb(v);
        deg[v]++;
    }
}
void dfs(int u)
{
    for(int v : adj[u])
    {
        dfs(v);
    }
    bitset<maxV> f[maxV];
    f[a[u]][a[u]] = 1;
    for(int v : adj[u])
    {
        for(int l=1; l<=100; l++)
            f[l] |= bs[v][l];
    }
    for(int l=1; l<=100; l++)
        for(int r=l; r<=100; r++)
            if(f[l][r]) f[l] |= f[r + 1];
    for(int l=1; l<=100; l++)
        for(int r=l; r<=100; r++)
            if(l <= a[u] && r >= a[u] && f[l][r])
               bs[u][l][r] = 1;
}
void Solve()
{
    dfs(1);
    int res = 0;
    for(int l=1; l<=100; l++)
        for(int r=l; r<=100; r++)
            res += bs[1][l][r];
    cout << res;
}
int32_t main()
{
  //  freopen("x.inp", "r", stdin);
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    ReadInput();
    Solve();
}

Subtask #1
80.0 / 160.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 596 KB Output is correct
2 Correct 1 ms 596 KB Output is correct
3 Incorrect 2 ms 596 KB Output isn't correct
4 Incorrect 1 ms 596 KB Output isn't correct
5 Incorrect 1 ms 724 KB Output isn't correct
6 Correct 2 ms 852 KB Output is correct
7 Correct 2 ms 852 KB Output is correct
8 Correct 2 ms 852 KB Output is correct
9 Correct 3 ms 724 KB Output is correct
10 Correct 2 ms 724 KB Output is correct
11 Incorrect 115 ms 17160 KB Output isn't correct
12 Incorrect 110 ms 17220 KB Output isn't correct
13 Correct 109 ms 17188 KB Output is correct
14 Runtime error 110 ms 33572 KB Memory limit exceeded
15 Runtime error 125 ms 33496 KB Memory limit exceeded
16 Runtime error 117 ms 33524 KB Memory limit exceeded
17 Correct 109 ms 17236 KB Output is correct
18 Correct 113 ms 17240 KB Output is correct
19 Incorrect 108 ms 17064 KB Output isn't correct
20 Incorrect 114 ms 17108 KB Output isn't correct