oj.uz

답안 #890215

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
890215 2023-12-20T16:57:47 Z cpptowin Uzastopni (COCI15_uzastopni) C++17
80 / 160
 276 ms 19096 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<110> dp[10010][110];
vi ke[maxn];
int v[maxn];
int n;
bitset<110> 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,i,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);
    long long ans = 0;
    fo(i,1,100) ans += dp[1][i].count();
    cout << ans;
}

Compilation message

uzastopni.cpp:60:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   60 | main()
      | ^~~~
uzastopni.cpp: In function 'int main()':
uzastopni.cpp:65:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   65 |         freopen(name".inp","r",stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
uzastopni.cpp:66:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   66 |         freopen(name".out","w",stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
80.0 / 160.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 2652 KB Output isn't correct
2 Incorrect 2 ms 2652 KB Output isn't correct
3 Incorrect 3 ms 2396 KB Output isn't correct
4 Correct 3 ms 2652 KB Output is correct
5 Correct 3 ms 2652 KB Output is correct
6 Correct 3 ms 2904 KB Output is correct
7 Correct 3 ms 2652 KB Output is correct
8 Correct 3 ms 2652 KB Output is correct
9 Incorrect 3 ms 2652 KB Output isn't correct
10 Incorrect 3 ms 2652 KB Output isn't correct
11 Incorrect 254 ms 17968 KB Output isn't correct
12 Incorrect 254 ms 18256 KB Output isn't correct
13 Correct 252 ms 18004 KB Output is correct
14 Correct 253 ms 19096 KB Output is correct
15 Correct 252 ms 19040 KB Output is correct
16 Correct 253 ms 18964 KB Output is correct
17 Incorrect 262 ms 18080 KB Output isn't correct
18 Correct 252 ms 18096 KB Output is correct
19 Incorrect 247 ms 17748 KB Output isn't correct
20 Incorrect 276 ms 17820 KB Output isn't correct