oj.uz

Submission #989043

# Submission time Handle Problem Language Result Execution time Memory
989043 2024-05-27T10:48:24 Z diaabt Cats or Dogs (JOI18_catdog) C++14
0 / 100
 1 ms 3676 KB 
#include "catdog.h"
#include <bits/stdc++.h>
#define f first
#define s second
#define pb push_back
#define mp make_pair
#define ll long long
#define ldb long double
#define db double
#define fin(x) freopen(x,"r",stdin)
#define fout(x) freopen(x,"w",stdout)
#define fo(i,l,r) for(int i=(l);i<=(r);i++)
#define foi(i,l,r) for(int i=(l);i>=(r);i--)
#define el cout<<'\n';
#define cel cerr<<'\n';
#define all(x) x.begin(),x.end()
#define ii pair<int,int>
#define iii pair<int,ii>
#define gb(x,i) (((x)>>(i))&1)
#define mask(i) (1LL<<(i))
#define TIME (1.0 * clock()/CLOCKS_PER_SEC)
using namespace std;
const int N=1e5+5;
const int bl=60;
const ll base=1e9+7;
const ll inf=1e9;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
ll Rand(ll l,ll r)
{
    return l+(1ll*rng()*rng()%(r-l+1)+(r-l+1))%(r-l+1);
}
template<class X,class Y>bool maximize(X &a,Y b)
{
    if(a<b) return a=b,true;
    return false;
}
template<class X,class Y>bool minimize(X &a, Y b)
{
    if(a>b) return a=b,true;
    return false;
}
void add(auto &a,auto b)
{
    a+=b;
    if(a>=base) a-=base;
    if(a<0) a+=base;
}
vector<int>g[N];
int c[N],dp[N][2];
void dfs(int u,int p)
{
    if(!~c[u]) dp[u][0]=dp[u][1]=0;
    else dp[u][c[u]^1]=1e9,dp[u][c[u]]=0;
    for(int v:g[u]) if(v!=p)
    {
        dfs(v,u);
        fo(i,0,1) if(dp[u][i]!=1e9) dp[u][i]+=min(dp[v][i],dp[v][i^1]);
    }
}
int cat(int u)
{
    c[u]=0;
    dfs(1,0);
    return min(dp[1][0],dp[1][1]);
}
int dog(int u)
{
    c[u]=1;
    dfs(1,0);
    return min(dp[1][0],dp[1][1]);
}
int neighbor(int u)
{
    c[u]=-1;
    dfs(1,0);
    return min(dp[1][0],dp[1][1]);
}
void initialize(int n,vector<int>a,vector<int>b)
{
    fo(i,0,n-2) g[a[i]].pb(b[i]),g[b[i]].pb(a[i]);
    fo(i,1,n) c[i]=-1;
}

Compilation message

catdog.cpp:42:10: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   42 | void add(auto &a,auto b)
      |          ^~~~
catdog.cpp:42:18: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   42 | void add(auto &a,auto b)
      |                  ^~~~

Subtask #1
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 3676 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 30.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 3676 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 62.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 3676 KB Output isn't correct
2 Halted 0 ms 0 KB -