# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
371069 | Atill83 | Poklon (COCI17_poklon7) | C++14 | 1033 ms | 262148 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
#define ff first
#define ss second
#define endl '\n'
using namespace std;
const long long INF = (long long) 1e18;
const int mod = (int) 1e9+7;
const int MAXN = (int) 1e6+5;
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
ll n;
int l[MAXN], r[MAXN];
int Gidx = 0;
string idx[MAXN];
vector<int> hsh[MAXN];
int do_it(int v){
assert(Gidx <= MAXN);
if(v < 0){
int cur = -v;
int pow = 1;
while(cur){
idx[Gidx] += (char)('0' + cur % 2);
hsh[Gidx].push_back(pow * (cur % 2) % mod);
pow = pow * 2 % mod;
cur /= 2;
}
reverse(idx[Gidx].begin(), idx[Gidx].end());
return Gidx++;
}
int left = do_it(l[v]), right = do_it(r[v]);
int winner = -1;
if(idx[left].size() != idx[right].size()){
winner = (idx[left].size() > idx[right].size() ? left : right);
}else{
int l = 0, r = idx[left].size() - 1;
while(l < r){
int m = (l + r + 1) / 2;
if(hsh[left][m] != hsh[right][m]){
r = m - 1;
}else{
l = m;
}
}
l++;
if(l == idx[left].size() || idx[left][l] == '1')
winner = left;
else
winner = right;
}
idx[winner] += '0';
hsh[winner].push_back(hsh[winner].back() * 2 % mod);
return winner;
}
int main(){
ios_base::sync_with_stdio(false);
cin.tie(nullptr);cout.tie(nullptr);
#ifdef Local
freopen("C:/Users/Admin/Desktop/Yazilim/C/IO/int.txt","r",stdin);
freopen("C:/Users/Admin/Desktop/Yazilim/C/IO/out.txt","w",stdout);
#endif
cin>>n;
for(int i = 1; i <= n; i++)
cin>>l[i]>>r[i];
string & cev = idx[do_it(1)];
cout<<cev<<endl;
#ifdef Local
cout<<endl<<fixed<<setprecision(2)<<1000.0 * clock() / CLOCKS_PER_SEC<< " milliseconds ";
#endif
}
Compilation message (stderr)
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