// NK
#include <bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
//using namespace __gnu_pbds;
typedef pair<int,int> ii;
typedef long long ll;
typedef vector<int> vi;
typedef vector<ii> vii;
typedef vector<ll> vll;
#define pb push_back
#define eb emplace_back
#define pob pop_back
#define psf push_front
#define pof pop_front
#define mkp make_pair
#define mkt make_tuple
#define all(x) x.begin(), x.end()
#define Bolivia_is_nice ios::sync_with_stdio(false), cin.tie(nullptr)
//typedef tree<ii, null_type, less<ii>, rb_tree_tag, tree_order_statistics_node_update> ord_set;
const int MAXS = 1e5 + 10;
deque<int> Abin(MAXS), Bbin(MAXS);
void helper(deque<int> & ops, int pos){
ops[pos - 1] += ops[pos] / 2;
if (ops[pos] < 0 && ops[pos]%2 != 0){
ops[pos - 1]--;
}
ops[pos] = abs(ops[pos]) % 2;
}
void traverse(string s, deque<int> & ops){
int iter;
ops[0] = iter = 1;
for (int i=0; i<s.size(); i++){
if (s[i] == '1'){
ops[iter] = 0;
iter++;
}else if (s[i] == '2'){
ops[iter] = 1;
iter++;
}else if (s[i] == 'L'){
ops[iter - 1]--;
}else if (s[i] == 'R'){
ops[iter - 1]++;
}else{ // U
helper(ops, iter - 1);
iter--;
}
}
for (int i=iter-1; i>=1; i--){
helper(ops, i);
}
while(ops.size() > iter) ops.pob();
while(ops.front() == 0) ops.pof();
}
void solve(){
string a,b; cin>>a>>b;
traverse(a, Abin);
traverse(b, Bbin);
if (Abin.size() < Bbin.size()) swap(Abin, Bbin);
int ans, UB;
ans = UB = MAXS * 2;
int diff = Abin.size() - Bbin.size();
while(Abin.size() > Bbin.size()) Abin.pob();
int HOR = 0;
for (int i=0; i<Abin.size(); i++){
HOR = HOR * 2 + Abin[i] - Bbin[i];
int current = diff + abs(HOR) + 2 * (int)(Abin.size() - i - 1);
if (current >= UB) break;
ans = min(ans, current);
}
cout<<ans<<'\n';
}
int main(){
Bolivia_is_nice;
int t = 1; //cin>>t;
while(t--)
solve();
return 0;
}
/*
~/.emacs
*/
Compilation message
board.cpp: In function 'void traverse(std::string, std::deque<int>&)':
board.cpp:41:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
41 | for (int i=0; i<s.size(); i++){
| ~^~~~~~~~~
board.cpp:60:19: warning: comparison of integer expressions of different signedness: 'std::deque<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
60 | while(ops.size() > iter) ops.pob();
| ~~~~~~~~~~~^~~~~~
board.cpp: In function 'void solve()':
board.cpp:76:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::deque<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
76 | for (int i=0; i<Abin.size(); i++){
| ~^~~~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
1132 KB |
Output is correct |
2 |
Correct |
1 ms |
1132 KB |
Output is correct |
3 |
Correct |
1 ms |
1132 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
4 ms |
1516 KB |
Output is correct |
2 |
Correct |
2 ms |
1260 KB |
Output is correct |
3 |
Correct |
4 ms |
1516 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
1132 KB |
Output is correct |
2 |
Correct |
1 ms |
1132 KB |
Output is correct |
3 |
Correct |
1 ms |
1132 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
1260 KB |
Output is correct |
2 |
Correct |
4 ms |
1644 KB |
Output is correct |
3 |
Correct |
3 ms |
1516 KB |
Output is correct |
4 |
Correct |
2 ms |
1280 KB |
Output is correct |
5 |
Correct |
1 ms |
1132 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
1164 KB |
Output is correct |
2 |
Correct |
1 ms |
1132 KB |
Output is correct |
3 |
Correct |
2 ms |
1132 KB |
Output is correct |
4 |
Correct |
1 ms |
1132 KB |
Output is correct |
5 |
Correct |
1 ms |
1132 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
1132 KB |
Output is correct |
2 |
Correct |
2 ms |
1260 KB |
Output is correct |
3 |
Correct |
1 ms |
1132 KB |
Output is correct |
4 |
Correct |
2 ms |
1132 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
1260 KB |
Output is correct |
2 |
Correct |
5 ms |
1644 KB |
Output is correct |
3 |
Correct |
4 ms |
1516 KB |
Output is correct |
4 |
Correct |
2 ms |
1152 KB |
Output is correct |
5 |
Correct |
2 ms |
1132 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
1772 KB |
Output is correct |
2 |
Correct |
5 ms |
1644 KB |
Output is correct |
3 |
Correct |
2 ms |
1260 KB |
Output is correct |
4 |
Correct |
2 ms |
1260 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
1772 KB |
Output is correct |
2 |
Correct |
5 ms |
1772 KB |
Output is correct |
3 |
Correct |
2 ms |
1132 KB |
Output is correct |
4 |
Correct |
2 ms |
1260 KB |
Output is correct |
5 |
Correct |
5 ms |
1644 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
1644 KB |
Output is correct |
2 |
Correct |
5 ms |
1644 KB |
Output is correct |
3 |
Correct |
4 ms |
1644 KB |
Output is correct |
4 |
Correct |
2 ms |
1260 KB |
Output is correct |
5 |
Correct |
2 ms |
1260 KB |
Output is correct |
6 |
Correct |
5 ms |
1644 KB |
Output is correct |