Submission #915266

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
915266	2024-01-23 15:16:57	Tuanlinh123	Capital City (JOI20_capital_city)	C++17	100 / 100	261 ms	221036 KiB

capital_city

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#include<bits/stdc++.h>
#define ll long long
#define pll pair<ll, ll>
#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define ld long double
using namespace std;
const ll maxn=1000005, inf=1e9;
stack <ll> st;
vector <pll> euler;
pll sp[20][maxn*2]; 
vector <ll> A[maxn], B[maxn];
ll c[maxn], lca[maxn], pa[maxn], r[maxn];
ll cnt, Time, num[maxn], lo[maxn], comp[maxn], sz[maxn];
void dfs(ll u)
{
    lca[u]=euler.size()+1;
    euler.pb({lca[u], u});
    for (ll v:A[u])
    {
        if (v==pa[u])
            continue;
        pa[v]=u, dfs(v);
        euler.pb({lca[u], u});
    }
}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

capital_city.cpp: In function 'void initlca()':
capital_city.cpp:39:53: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   39 |             sp[i][j]=min(sp[i-1][j], sp[i-1][j+(1<<i-1)]);
      |                                                    ~^~
capital_city.cpp: In function 'void dfs2(long long int)':
capital_city.cpp:52:10: warning: unused variable 'ok' [-Wunused-variable]
   52 |     bool ok=1;
      |          ^~

• Subtask 1: 1 / 1
• Subtask 2: 10 / 10
• Subtask 3: 30 / 30
• Subtask 4: 59 / 59