oj.uz

답안 #525137

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
525137 2022-02-10T20:47:05 Z perchuts Poklon (COCI17_poklon7) C++17
120 / 120
 224 ms 48188 KB 
#include <bits/stdc++.h>
#define maxn (int)(1e5+51)
#define all(x) x.begin(), x.end()
#define sz(x) (int) x.size()
#define endl '\n'
#define ll long long
#define pb push_back
#define ull unsigned long long
#define ii pair<int,int>
#define iii tuple<int,int,int>
#define inf 2000000001
#define mod 1000000007 //998244353
#define _ ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);

using namespace std;

template<typename X, typename Y> bool ckmin(X& x, const Y& y) { return (y < x) ? (x=y,1):0; }
template<typename X, typename Y> bool ckmax(X& x, const Y& y) { return (x < y) ? (x=y,1):0; }
struct node{
    pair<ll,ll> l,r;
}nd;
vector<node>g;

pair<ll,ll> dfs(int x){
    if(g[x].l.first>0)g[x].l = dfs(g[x].l.first);
    else g[x].l.first*=-1LL;
    if(g[x].r.first>0)g[x].r = dfs(g[x].r.first);
    else g[x].r.first*=-1LL;
    if(g[x].l.first<g[x].r.first)swap(g[x].l,g[x].r);
    ll msb = 0,tmp = g[x].r.first;
    if(tmp)while(tmp<g[x].l.first)tmp<<=1LL,msb++;
    else return {g[x].l.first,g[x].l.second+1LL};
    if(g[x].r.second-g[x].l.second>=msb)return {g[x].r.first,g[x].r.second+1LL};
    else return {g[x].l.first,g[x].l.second+1LL};
}

int main(){_
    int n;cin>>n;
    g.resize(n+1);
    for(int i=1;i<=n;i++){
        ll l,r;cin>>g[i].l.first>>g[i].r.first;
    }    
    auto [ans,zero] = dfs(1);
    vector<int>resp;
    while(ans){
        resp.pb(ans&1LL);
        ans>>=1LL;
    }
    reverse(all(resp));
    for(auto x:resp)cout<<x;
    for(int i=0;i<zero;i++)cout<<'0';
    cout<<endl;
}

Compilation message

poklon.cpp: In function 'int main()':
poklon.cpp:41:12: warning: unused variable 'l' [-Wunused-variable]
   41 |         ll l,r;cin>>g[i].l.first>>g[i].r.first;
      |            ^
poklon.cpp:41:14: warning: unused variable 'r' [-Wunused-variable]
   41 |         ll l,r;cin>>g[i].l.first>>g[i].r.first;
      |              ^

Subtask #1
120.0 / 120.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 2 ms 588 KB Output is correct
12 Correct 3 ms 664 KB Output is correct
13 Correct 11 ms 2272 KB Output is correct
14 Correct 22 ms 4188 KB Output is correct
15 Correct 20 ms 3404 KB Output is correct
16 Correct 73 ms 12924 KB Output is correct
17 Correct 172 ms 29252 KB Output is correct
18 Correct 170 ms 30240 KB Output is correct
19 Correct 214 ms 34428 KB Output is correct
20 Correct 224 ms 48188 KB Output is correct