#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;
void dfs(int u)
{
bitset<105> f[110];
f[v[u]][v[u]] = 1;
for(int v : ke[u])
{
dfs(v);
fo(i,1,100) f[i] |= dp[v][i];
}
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:42:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
42 | main()
| ^~~~
uzastopni.cpp: In function 'int main()':
uzastopni.cpp:47:15: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
47 | freopen(name".inp","r",stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
uzastopni.cpp:48:15: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
48 | freopen(name".out","w",stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
2 ms |
2648 KB |
Output isn't correct |
| 2 |
Incorrect |
2 ms |
2648 KB |
Output isn't correct |
| 3 |
Incorrect |
2 ms |
2652 KB |
Output isn't correct |
| 4 |
Correct |
3 ms |
2652 KB |
Output is correct |
| 5 |
Incorrect |
4 ms |
2676 KB |
Output isn't correct |
| 6 |
Correct |
4 ms |
2648 KB |
Output is correct |
| 7 |
Correct |
2 ms |
2792 KB |
Output is correct |
| 8 |
Correct |
2 ms |
2652 KB |
Output is correct |
| 9 |
Incorrect |
2 ms |
2652 KB |
Output isn't correct |
| 10 |
Incorrect |
2 ms |
2652 KB |
Output isn't correct |
| 11 |
Incorrect |
170 ms |
18216 KB |
Output isn't correct |
| 12 |
Incorrect |
170 ms |
18116 KB |
Output isn't correct |
| 13 |
Correct |
170 ms |
18084 KB |
Output is correct |
| 14 |
Runtime error |
181 ms |
35412 KB |
Memory limit exceeded |
| 15 |
Runtime error |
205 ms |
35452 KB |
Memory limit exceeded |
| 16 |
Runtime error |
179 ms |
35412 KB |
Memory limit exceeded |
| 17 |
Incorrect |
174 ms |
17888 KB |
Output isn't correct |
| 18 |
Correct |
171 ms |
18020 KB |
Output is correct |
| 19 |
Incorrect |
166 ms |
18004 KB |
Output isn't correct |
| 20 |
Incorrect |
168 ms |
18004 KB |
Output isn't correct |
