oj.uz

Submission #890212

# Submission time Handle Problem Language Result Execution time Memory
890212 2023-12-20T16:55:40 Z cpptowin Uzastopni (COCI15_uzastopni) C++17
80 / 160
 280 ms 19188 KB 
#include<bits/stdc++.h>
#define fo(i,d,c) for(int i=d;i<=c;i++)
#define fod(i,c,d) for(int i=c;i>=d;i--)
#define maxn 10010
#define N 1010
#define fi first
#define se second
#define pb emplace_back
#define en cout<<"\n";
#define inf 1000000000
#define pii pair<int,int>
#define vii vector<pii>
#define lb(x) x&-x
#define bit(i,j) ((i>>j)&1)
#define offbit(i,j) (i^(1<<j))
#define onbit(i,j) (i|(1<<j))
#define vi vector<int>
template <typename T1, typename T2> bool minimize(T1 &a, T2 b){if (a > b) {a = b; return true;} return false;}
template <typename T1, typename T2> bool maximize(T1 &a, T2 b){if (a < b) {a = b; return true;} return false;}
using namespace std;
bitset<105> dp[10010][110];
vi ke[maxn];
int v[maxn];
int n;
    bitset<105> f[110];
void dfs(int u)
{
    for(int v : ke[u]) dfs(v);
    fo(i,1,100) f[i].reset();
    f[v[u]][v[u]] = 1;
    for(int v : ke[u])
    {
        fo(i,1,100) f[i] |= dp[v][i];
    }
    fo(i,1,100) fo(j,1,100) if(f[i][j]) f[i] |= f[j];
    dp[u][v[u]][v[u]] = 1;
    fo(i,1,100) fo(j,1,100)
    {
        if(f[i + 1][j] and i == v[u]) dp[u][i][j] = 1;
        if(f[i][j - 1] and j == v[u]) dp[u][i][j] = 1;
        if(f[i][v[u] - 1] and f[v[u] + 1][j]) dp[u][i][j] = 1;
    }
}
main()
{
    #define name "TASK"
    if(fopen(name".inp","r"))
    {
       freopen(name".inp","r",stdin);
       freopen(name".out","w",stdout);
    }
    ios_base::sync_with_stdio(false);cin.tie(NULL);
    cin >> n;
    fo(i,1,n) cin >> v[i];
    fo(i,1,n - 1)
    {
        int u,v;
        cin >> u >> v;
        ke[u].pb(v);
    }
    dfs(1);
    int ans = 0;
    fo(i,1,100) ans += dp[1][i].count();
    cout << ans;
}

Compilation message

uzastopni.cpp:44:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   44 | main()
      | ^~~~
uzastopni.cpp: In function 'int main()':
uzastopni.cpp:49:15: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   49 |        freopen(name".inp","r",stdin);
      |        ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
uzastopni.cpp:50:15: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   50 |        freopen(name".out","w",stdout);
      |        ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
80.0 / 160.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 2648 KB Output isn't correct
2 Incorrect 2 ms 2396 KB Output isn't correct
3 Incorrect 3 ms 2652 KB Output isn't correct
4 Correct 3 ms 2652 KB Output is correct
5 Correct 4 ms 2652 KB Output is correct
6 Correct 3 ms 2652 KB Output is correct
7 Correct 4 ms 2660 KB Output is correct
8 Correct 3 ms 2652 KB Output is correct
9 Incorrect 3 ms 2664 KB Output isn't correct
10 Incorrect 3 ms 2652 KB Output isn't correct
11 Incorrect 271 ms 18008 KB Output isn't correct
12 Incorrect 272 ms 18004 KB Output isn't correct
13 Correct 280 ms 18008 KB Output is correct
14 Correct 269 ms 19096 KB Output is correct
15 Correct 277 ms 19188 KB Output is correct
16 Correct 267 ms 18884 KB Output is correct
17 Incorrect 275 ms 18264 KB Output isn't correct
18 Correct 267 ms 18004 KB Output is correct
19 Incorrect 266 ms 17744 KB Output isn't correct
20 Incorrect 264 ms 17748 KB Output isn't correct