結果
問題 | No.2018 X-Y-X |
ユーザー | milanis48663220 |
提出日時 | 2023-07-05 23:56:12 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 10 ms / 2,000 ms |
コード長 | 5,101 bytes |
コンパイル時間 | 1,556 ms |
コンパイル使用メモリ | 142,316 KB |
実行使用メモリ | 8,336 KB |
最終ジャッジ日時 | 2024-07-19 18:20:58 |
合計ジャッジ時間 | 2,696 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 2 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 1 ms
5,376 KB |
testcase_06 | AC | 3 ms
5,376 KB |
testcase_07 | AC | 5 ms
5,376 KB |
testcase_08 | AC | 7 ms
6,524 KB |
testcase_09 | AC | 6 ms
6,528 KB |
testcase_10 | AC | 6 ms
6,004 KB |
testcase_11 | AC | 6 ms
6,132 KB |
testcase_12 | AC | 6 ms
6,308 KB |
testcase_13 | AC | 4 ms
5,376 KB |
testcase_14 | AC | 5 ms
5,376 KB |
testcase_15 | AC | 5 ms
5,396 KB |
testcase_16 | AC | 3 ms
5,376 KB |
testcase_17 | AC | 5 ms
5,376 KB |
testcase_18 | AC | 4 ms
5,376 KB |
testcase_19 | AC | 3 ms
5,376 KB |
testcase_20 | AC | 7 ms
6,520 KB |
testcase_21 | AC | 3 ms
5,376 KB |
testcase_22 | AC | 4 ms
5,376 KB |
testcase_23 | AC | 3 ms
5,376 KB |
testcase_24 | AC | 9 ms
8,336 KB |
testcase_25 | AC | 8 ms
6,412 KB |
testcase_26 | AC | 10 ms
8,216 KB |
testcase_27 | AC | 3 ms
5,376 KB |
testcase_28 | AC | 2 ms
5,376 KB |
testcase_29 | AC | 3 ms
5,376 KB |
testcase_30 | AC | 4 ms
5,376 KB |
testcase_31 | AC | 5 ms
5,376 KB |
testcase_32 | AC | 5 ms
5,376 KB |
ソースコード
#include <iostream> #include <algorithm> #include <iomanip> #include <vector> #include <queue> #include <deque> #include <set> #include <map> #include <tuple> #include <cmath> #include <numeric> #include <functional> #include <cassert> #define debug_value(x) cerr << "line" << __LINE__ << ":<" << __func__ << ">:" << #x << "=" << x << endl; #define debug(x) cerr << "line" << __LINE__ << ":<" << __func__ << ">:" << x << endl; template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; } template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; } using namespace std; typedef long long ll; template<typename T> vector<vector<T>> vec2d(int n, int m, T v){ return vector<vector<T>>(n, vector<T>(m, v)); } template<typename T> vector<vector<vector<T>>> vec3d(int n, int m, int k, T v){ return vector<vector<vector<T>>>(n, vector<vector<T>>(m, vector<T>(k, v))); } template<typename T> void print_vector(vector<T> v, char delimiter=' '){ if(v.empty()) { cout << endl; return; } for(int i = 0; i+1 < v.size(); i++) cout << v[i] << delimiter; cout << v.back() << endl; } struct UnionFind { vector<int> data; UnionFind(int size) : data(size, -1) {} bool unionSet(int x, int y) { x = root(x); y = root(y); if (x != y) { if (data[y] < data[x]) swap(x, y); data[x] += data[y]; data[y] = x; } return x != y; } bool findSet(int x, int y) { return root(x) == root(y); } int root(int x) { return data[x] < 0 ? x : data[x] = root(data[x]); } int size(int x) { return -data[root(x)]; } }; void test(int n){ int m = 1<<n; UnionFind uf(m); for(int s = 0; s < m; s++){ for(int i = 0; i+2 < n; i++){ int a = (s&(1<<i)) ? 1 : 0; int b = (s&(1<<(i+2))) ? 1 : 0; if(a != b){ int t = s^(1<<(i+1)); uf.unionSet(s, t); } } } vector<vector<int>> components(m); for(int i = 0; i < m; i++){ components[uf.root(i)].push_back(i); } int cnt = 0; for(int r = 0; r < m; r++){ if(components[r].size() > 0){ cnt++; cout << "====" << endl; for(int x: components[r]){ for(int i = 0; i < n; i++){ if(x&(1<<i)) cout << 1; else cout << 0; } cout << ' '; } cout << endl; } } debug_value(cnt) } char inv(char c){ return 'A'+((c-'A')^1); } using P = pair<char, int>; vector<P> run_length(string s){ char c = s[0]; int cnt = 1; int n = s.size(); vector<P> ans; for(int i = 1; i < n; i++){ if(c == s[i]){ cnt++; }else{ ans.push_back({c, cnt}); c = s[i]; cnt = 1; } } ans.push_back({c, cnt}); return ans; } ll solve(string s, string t){ int n = s.size(); for(int i = 0; i < n; i++){ int j = i/2; if(j%2 == 1){ s[i] = inv(s[i]); t[i] = inv(t[i]); } } auto ps = run_length(s); auto pt = run_length(t); if(ps.size() != pt.size()){ return -1; } ll ans = 0; int m = ps.size(); int s_len = 0, t_len = 0; for(int i = 0; i < m; i++){ auto [cs, xs] = ps[i]; auto [ct, xt] = pt[i]; if(cs != ct){ return -1; } if(cs == 'A') { int l = min(s_len, t_len); int r = max(s_len+xs, t_len+xt); ans += (r-l)*2 - (xs+xt); } s_len += xs; t_len += xt; } return ans; } int naive(string s, string t){ map<string, int> dist; queue<string> que; auto set_dist = [&](string s, int d){ if(dist.count(s)) return; dist[s] = d; que.push(s); }; set_dist(s, 0); int n = s.size(); while(!que.empty()){ string s = que.front(); que.pop(); for(int i = 0; i+2 < n; i++){ if(s[i] != s[i+2]) continue; auto t = s; t[i+1] = inv(s[i+1]); set_dist(t, dist[s]+1); } } if(dist.count(t)) return dist[t]; return -1; } void verify(int n){ auto f = [&](int s){ string ans; for(int i = 0; i < n; i++){ if(s&(1<<i)) ans += 'B'; else ans += 'A'; } return ans; }; for(int i = 0; i < (1<<n); i++){ string s = f(i); for(int j = 0; j < (1<<n); j++){ string t = f(j); int s0 = solve(s, t); int s1 = naive(s, t); if(s0 != s1){ cout << s << ' ' << t << ' ' << s0 << ' ' << s1 << endl; } } } debug_value("OK") } int main(){ ios::sync_with_stdio(false); cin.tie(0); cout << setprecision(10) << fixed; int n; cin >> n; // verify(n); string s, t; cin >> s >> t; cout << solve(s, t) << endl; }