oj.uz

Submission #787690

# Submission time Handle Problem Language Result Execution time Memory
787690 2023-07-19T10:58:05 Z vjudge1 Editor (BOI15_edi) C++17
100 / 100
 214 ms 72508 KB 
//i_love_aisukiuwu
#include <bits/stdc++.h>
using namespace std;

#ifdef LOCAL
	#include "/home/trucmai/.vim/tools.h"
	#define debug(x...) cerr << "\e[91m"<<__func__<<":"<<__LINE__<<" [" << #x << "] = ["; _print(x); cerr << "\e[39m" << endl;
	#else
	#define debug(x...)
#endif

void open(){
  if(fopen("i.inp","r")){
    freopen("i.inp","r",stdin);
    freopen("o.out","w",stdout);
  }
}

#define ll long long
#define all(a) (a).begin(), (a).end()
#define vi vector<ll>
#define pi pair<ll,ll>
#define pii pair<ll,pair<ll,ll>>
#define fi first
#define se second
#define gcd __gcd
#define mset(a,v) memset(a, v, sizeof(a))
#define endl '\n'
#define spc " "

const int MN1 = 1e6 + 5,MN2 = 1e4 + 5,LOG = 27;
const ll MOD = 1e9 + 7,INF = 1e9;
ll n,a[MN1],up[MN1][LOG],lvl[MN1];
void solve(){
  cin>>n;
  for(ll i = 1;i <= n;++i) cin>>a[i]; 
  auto lift=[&](ll u,ll w)->ll{
    if(lvl[u] <= w) return u;
    for(ll i = LOG-1;i >= 0;--i)
      if(lvl[up[u][i]] > w) u = up[u][i]; 
    return up[u][0];
  };
  for(ll i = 1;i <= n;++i){
    if(a[i] < 0){
      lvl[i] = -a[i];
      ll tmp = lift(i-1,lvl[i]-1); 
      up[i][0] = lift(tmp-1,lvl[i]-1);
      //cout<<"DEBUG "<<tmp<<endl;
      for(ll j = 1;j < LOG;++j) up[i][j] = up[up[i][j-1]][j-1];
    }
    cout<<a[lift(i,0)]<<endl;
  }
}

signed main(){
  cin.tie(0) -> sync_with_stdio(0);
  open();
  ll t = 1; //cin>>t;
  while(t--) solve(); 
  
  #ifdef LOCAL
    cerr << endl << "Time elapsed: " << 1.0 * clock() / CLOCKS_PER_SEC << " s.\n";
  #endif
}

Compilation message

edi.cpp: In function 'void open()':
edi.cpp:14:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 |     freopen("i.inp","r",stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~
edi.cpp:15:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |     freopen("o.out","w",stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 2 ms 980 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 3 ms 1492 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 3 ms 1536 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 2 ms 1492 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 129 ms 71752 KB Output is correct
2 Correct 128 ms 71728 KB Output is correct

Subtask #3
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 59 ms 19788 KB Output is correct
2 Correct 66 ms 23620 KB Output is correct
3 Correct 173 ms 56904 KB Output is correct
4 Correct 129 ms 71732 KB Output is correct
5 Correct 120 ms 72408 KB Output is correct
6 Correct 116 ms 69684 KB Output is correct

Subtask #4
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 2 ms 980 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 3 ms 1492 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 3 ms 1536 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 2 ms 1492 KB Output is correct
10 Correct 129 ms 71752 KB Output is correct
11 Correct 128 ms 71728 KB Output is correct
12 Correct 59 ms 19788 KB Output is correct
13 Correct 66 ms 23620 KB Output is correct
14 Correct 173 ms 56904 KB Output is correct
15 Correct 129 ms 71732 KB Output is correct
16 Correct 120 ms 72408 KB Output is correct
17 Correct 116 ms 69684 KB Output is correct
18 Correct 116 ms 39580 KB Output is correct
19 Correct 107 ms 39464 KB Output is correct
20 Correct 214 ms 70944 KB Output is correct
21 Correct 129 ms 71788 KB Output is correct
22 Correct 119 ms 72508 KB Output is correct