Submission #1082853

#TimeUsernameProblemLanguageResultExecution timeMemory
1082853codexistentBoard (CEOI13_board)C++14
30 / 100
4 ms604 KiB
#include <bits/stdc++.h> using namespace std; #define MAXN 100005 #define FOR(i, a, b) for(int i = a; i <= b; i++) #define f first #define s second int r = 0; pair<int, int> getnd(string str){ pair<int, int> nd = {0, 1}; for(char c : str){ if(c == '1'){ nd.f++; nd.s = nd.s * 2 - 1; }else if(c == '2'){ nd.f++; nd.s *= 2; }else if(c == 'U'){ nd.f--; nd.s = (nd.s + 1) / 2; }else if(c == 'L'){ nd.s--; }else if(c == 'R'){ nd.s++; } // cout << " => " << nd.f << ", " << nd.s << endl; } return nd; } pair<int, int> moveup(pair<int, int> nd, int upsz){ FOR(i, 1, upsz){ nd.f--; nd.s = (nd.s + 1) / 2; } return nd; } void go(pair<int, int> a, pair<int, int> b){ if(a.s > b.s) swap(a, b); while(a.f != 0){ int ud = 2 + (b.s - a.s) / 2 + (a.s % 2 == 0 && b.s % 2 == 1); if(b.s - a.s < ud) { r += b.s - a.s; return; } a = moveup(a, 1), b = moveup(b, 1); r += 2; } } int main(){ string sa, sb; cin >> sa >> sb; pair<int, int> a = getnd(sa); // cout << endl; pair<int, int> b = getnd(sb); if(a.f < b.f) swap(a, b); r += a.f - b.f; // cout << r << " a is : " << a.f << ", " << a.s << " and b is : " << b.f << ", " << b.s << endl; a = moveup(a, a.f - b.f); // cout << r << " a is : " << a.f << ", " << a.s << " and b is : " << b.f << ", " << b.s << endl; go(a, b); cout << r << endl; }
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