#include <bits/stdc++.h>
//#include <vector>
//#include <iostream>
#define ll long long
#define pb push_back
#define s second
#define f first
using namespace std;
const int N = 1000005;
int a[N],b[N];
vector<int> bin(int x){
vector<int> str; str.clear();
bool z=0;
for (int j=29;j>=0;j--){
if((1LL<<j)&x) str.pb(1),z=1;
else if (z) str.pb(0);
}
return str;
}
vector <int> comp(vector <int> a,vector <int> b){
if (a.size() > b.size()) return a;
if (a.size() < b.size()) return b;
for (int i=0;i<a.size();i++){
if (a[i] > b[i]) return a;
if (a[i] < b[i]) return b;
}
return a;
}
vector <int> dfs(int x){
vector<int> mx;
if (a[x] < 0 && b[x] < 0) {
mx = bin(max(-a[x],-b[x]));
}else if (a[x] < 0){
mx = bin(-a[x]);
}else if (b[x]<0){
mx = bin(-b[x]);
}else{
mx= comp(dfs(a[x]),dfs(b[x]));
mx.pb(0);
return mx;
}
if (a[x] > 0)
mx = comp(mx,dfs(a[x]));
if (b[x] > 0)
mx = comp(mx,dfs(b[x]));
mx.pb(0);
return mx;
}
signed main() {
ios_base::sync_with_stdio(0),cin.tie(NULL),cout.tie(NULL);
int n;
cin>>n;
for(int i = 1; i <= n; i++)
cin>>a[i]>>b[i];
vector<int> res = dfs(1);
bool z=0;
for (int i=0;i<res.size();i++){
if (res[i] == 1) z=1;
if(z) cout<<res[i];
}
}
Compilation message
poklon.cpp: In function 'std::vector<int> comp(std::vector<int>, std::vector<int>)':
poklon.cpp:26:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
26 | for (int i=0;i<a.size();i++){
| ~^~~~~~~~~
poklon.cpp: In function 'int main()':
poklon.cpp:65:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
65 | for (int i=0;i<res.size();i++){
| ~^~~~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
340 KB |
Output is correct |
8 |
Correct |
1 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
7 ms |
2132 KB |
Output is correct |
12 |
Correct |
10 ms |
1684 KB |
Output is correct |
13 |
Correct |
32 ms |
9888 KB |
Output is correct |
14 |
Correct |
60 ms |
20248 KB |
Output is correct |
15 |
Correct |
47 ms |
1120 KB |
Output is correct |
16 |
Correct |
207 ms |
48948 KB |
Output is correct |
17 |
Correct |
452 ms |
101160 KB |
Output is correct |
18 |
Correct |
454 ms |
117220 KB |
Output is correct |
19 |
Correct |
574 ms |
73948 KB |
Output is correct |
20 |
Runtime error |
531 ms |
262144 KB |
Execution killed with signal 9 |