#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) 2e6+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];
int len[MAXN];
vector<int> hsh[MAXN];
int do_it(int v){
assert(Gidx <= MAXN);
if(v < 0){
int cur = -v, pow = 1;
while(cur){
idx[Gidx] += (char)('0' + cur % 2);
hsh[Gidx].push_back(((hsh[Gidx].empty() ? 0 : hsh[Gidx].back()) + pow * (cur % 2) % mod) % mod);
pow = pow * 2 % mod;
cur /= 2;
}
reverse(idx[Gidx].begin(), idx[Gidx].end());
reverse(hsh[Gidx].begin(), hsh[Gidx].end());
len[Gidx] = hsh[Gidx].size();
return Gidx++;
}
int left = do_it(l[v]), right = do_it(r[v]);
int winner = -1;
if(len[left] != len[right]){
winner = (len[left] > len[right] ? left : right);
}else{
if(idx[left].size() != idx[right].size()){
return (idx[left].size() > idx[right].size() ? left : right);
}
int yer = -1;
for(yer = 0; yer < idx[left].size(); yer++){
if(idx[left][yer] != idx[right][yer])
break;
}
if(yer == idx[left].size() || idx[left][yer] == '1')
winner = left;
else
winner = right;
}
len[winner]++;
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];
int ans = do_it(1);
string & cev = idx[ans];
while(cev.size() != len[ans])
cev += '0';
cerr<<ans<<endl;
cout<<cev<<endl;
#ifdef Local
cout<<endl<<fixed<<setprecision(2)<<1000.0 * clock() / CLOCKS_PER_SEC<< " milliseconds ";
#endif
}
Compilation message
poklon.cpp: In function 'int do_it(int)':
poklon.cpp:46:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
46 | for(yer = 0; yer < idx[left].size(); yer++){
| ~~~~^~~~~~~~~~~~~~~~~~
poklon.cpp:50:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
50 | if(yer == idx[left].size() || idx[left][yer] == '1')
| ~~~~^~~~~~~~~~~~~~~~~~~
poklon.cpp: In function 'int main()':
poklon.cpp:77:22: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
77 | while(cev.size() != len[ans])
| ~~~~~~~~~~~^~~~~~~~~~~
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
75 ms |
110060 KB |
Output is correct |
| 2 |
Correct |
72 ms |
109932 KB |
Output is correct |
| 3 |
Correct |
82 ms |
109932 KB |
Output is correct |
| 4 |
Correct |
74 ms |
110012 KB |
Output is correct |
| 5 |
Correct |
73 ms |
109976 KB |
Output is correct |
| 6 |
Correct |
73 ms |
109932 KB |
Output is correct |
| 7 |
Correct |
73 ms |
109932 KB |
Output is correct |
| 8 |
Correct |
73 ms |
110080 KB |
Output is correct |
| 9 |
Incorrect |
74 ms |
110060 KB |
Output isn't correct |
| 10 |
Correct |
75 ms |
110316 KB |
Output is correct |
| 11 |
Correct |
91 ms |
112492 KB |
Output is correct |
| 12 |
Correct |
86 ms |
112748 KB |
Output is correct |
| 13 |
Correct |
130 ms |
122732 KB |
Output is correct |
| 14 |
Correct |
192 ms |
135660 KB |
Output is correct |
| 15 |
Correct |
187 ms |
129900 KB |
Output is correct |
| 16 |
Correct |
467 ms |
191360 KB |
Output is correct |
| 17 |
Runtime error |
778 ms |
262144 KB |
Execution killed with signal 9 |
| 18 |
Runtime error |
772 ms |
262144 KB |
Execution killed with signal 9 |
| 19 |
Runtime error |
861 ms |
262148 KB |
Execution killed with signal 9 |
| 20 |
Runtime error |
504 ms |
262148 KB |
Execution killed with signal 9 |
