Submission #1545376
Source Code Expand
#include <bits/stdc++.h> #define FOR(i,b,e) for(int i=(b); i <= (e); ++i) #define FORD(i,b,e) for(int i=(b); i >= (e); --i) #define REP(i,n) for(int i=0; i < (n); ++i) #define SIZE(c) (int) (c).size() #define ALL(c) (c).begin(), (c).end() #define PB push_back #define MP make_pair #define ST first #define ND second #define FWD(i,a,b) for (int i=(a); i<(b); ++i) #define BCK(i,a,b) for (int i=(a); i>(b); --i) #define PI 3.14159265358979311600 #define pb push_back #define mp make_pair #define x first #define y second using namespace std; typedef long long ll; typedef pair <int, int> pii; typedef pair <ll, ll> pll; typedef vector < int > VI; typedef vector<ll> VL; typedef long double K; const int inf = 1000 * 1000 * 1000 + 7; const int N = 2005; int n; string a, b; int lf[N], rt[N]; vector<int> g[N]; multiset<int> s; int result = inf; void solve() { REP(shift, n + 1) { REP(i, n + 1) g[i].clear(); s.clear(); int l, r; int here = shift; REP(i, n) { int pos = (i + shift) % n; if (!i) l = r = pos; if (b[pos] == '1') l = pos; if (r == (pos - 1 + n) % n) r = (r+1) % n; while (b[r] != '1') r = (r+1) % n; while (b[l] != '1') l = (l-1+n) % n; if (a[i] != b[pos]) ++here; int sl = (pos - l) + (pos < l ? n : 0); int sr = (r - pos) + (r < pos ? n : 0); lf[i] = sl; rt[i] = sr; if (sl <= shift || !sr || a[i] == b[pos]) continue; g[sl - shift].push_back(sr); s.insert(sr); } int best = inf; REP(sh, n + 1) { for (auto& item : g[sh]) s.erase(s.find(item)); int val = s.empty() ? 0 : (*s.rbegin()); best = min(best, here + 2*(sh + val)); } result = min(result, best); } } int main() { ios_base::sync_with_stdio(false); cin.tie(0); cin >> a >> b; n = SIZE(a); int check = 0; REP(i, n) if (b[i] == '1') check |= 1; REP(i, n) if (a[i] == '1') check |= 2; if (check == 2) { cout << -1 << '\n'; return 0; } if (!check) { cout << 0 << '\n'; return 0; } REP(i, 2) { solve(); reverse(a.begin(), a.end()); reverse(b.begin(), b.end()); } cout << result << '\n'; return 0; }
Submission Info
Submission Time | |
---|---|
Task | D - Shift and Flip |
User | nobik |
Language | C++14 (GCC 5.4.1) |
Score | 1000 |
Code Size | 2172 Byte |
Status | AC |
Exec Time | 622 ms |
Memory | 512 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 1000 / 1000 | ||||
Status |
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Set Name | Test Cases |
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Sample | sample_01.txt, sample_02.txt, sample_03.txt, sample_04.txt |
All | sample_01.txt, sample_02.txt, sample_03.txt, sample_04.txt, sample_01.txt, sample_02.txt, sample_03.txt, sample_04.txt, subtask_1_01.txt, subtask_1_02.txt, subtask_1_03.txt, subtask_1_04.txt, subtask_1_05.txt, subtask_1_06.txt, subtask_1_07.txt, subtask_1_08.txt, subtask_1_09.txt, subtask_1_10.txt, subtask_1_11.txt, subtask_1_12.txt, subtask_1_13.txt, subtask_1_14.txt, subtask_1_15.txt, subtask_1_16.txt, subtask_1_17.txt, subtask_1_18.txt, subtask_1_19.txt, subtask_1_20.txt, subtask_1_21.txt, subtask_1_22.txt, subtask_1_23.txt, subtask_1_24.txt, subtask_1_25.txt, subtask_1_26.txt, subtask_1_27.txt, subtask_1_28.txt, subtask_1_29.txt, subtask_1_30.txt, subtask_1_31.txt, subtask_1_32.txt, subtask_1_33.txt, subtask_1_34.txt, subtask_1_35.txt, subtask_1_36.txt, subtask_1_37.txt, subtask_1_38.txt, subtask_1_39.txt, subtask_1_40.txt, subtask_1_41.txt, subtask_1_42.txt, subtask_1_43.txt, subtask_1_44.txt, subtask_1_45.txt, subtask_1_46.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
sample_01.txt | AC | 1 ms | 256 KB |
sample_02.txt | AC | 1 ms | 256 KB |
sample_03.txt | AC | 1 ms | 256 KB |
sample_04.txt | AC | 1 ms | 256 KB |
subtask_1_01.txt | AC | 1 ms | 256 KB |
subtask_1_02.txt | AC | 1 ms | 256 KB |
subtask_1_03.txt | AC | 1 ms | 256 KB |
subtask_1_04.txt | AC | 1 ms | 256 KB |
subtask_1_05.txt | AC | 142 ms | 384 KB |
subtask_1_06.txt | AC | 1 ms | 256 KB |
subtask_1_07.txt | AC | 141 ms | 384 KB |
subtask_1_08.txt | AC | 1 ms | 256 KB |
subtask_1_09.txt | AC | 1 ms | 256 KB |
subtask_1_10.txt | AC | 2 ms | 384 KB |
subtask_1_11.txt | AC | 188 ms | 384 KB |
subtask_1_12.txt | AC | 175 ms | 384 KB |
subtask_1_13.txt | AC | 192 ms | 384 KB |
subtask_1_14.txt | AC | 470 ms | 384 KB |
subtask_1_15.txt | AC | 370 ms | 384 KB |
subtask_1_16.txt | AC | 282 ms | 384 KB |
subtask_1_17.txt | AC | 265 ms | 384 KB |
subtask_1_18.txt | AC | 216 ms | 384 KB |
subtask_1_19.txt | AC | 203 ms | 384 KB |
subtask_1_20.txt | AC | 198 ms | 384 KB |
subtask_1_21.txt | AC | 428 ms | 384 KB |
subtask_1_22.txt | AC | 428 ms | 384 KB |
subtask_1_23.txt | AC | 593 ms | 512 KB |
subtask_1_24.txt | AC | 622 ms | 512 KB |
subtask_1_25.txt | AC | 592 ms | 512 KB |
subtask_1_26.txt | AC | 2 ms | 384 KB |
subtask_1_27.txt | AC | 3 ms | 384 KB |
subtask_1_28.txt | AC | 14 ms | 384 KB |
subtask_1_29.txt | AC | 49 ms | 384 KB |
subtask_1_30.txt | AC | 196 ms | 384 KB |
subtask_1_31.txt | AC | 1 ms | 256 KB |
subtask_1_32.txt | AC | 2 ms | 384 KB |
subtask_1_33.txt | AC | 3 ms | 384 KB |
subtask_1_34.txt | AC | 13 ms | 384 KB |
subtask_1_35.txt | AC | 52 ms | 384 KB |
subtask_1_36.txt | AC | 202 ms | 384 KB |
subtask_1_37.txt | AC | 2 ms | 384 KB |
subtask_1_38.txt | AC | 3 ms | 384 KB |
subtask_1_39.txt | AC | 13 ms | 384 KB |
subtask_1_40.txt | AC | 50 ms | 384 KB |
subtask_1_41.txt | AC | 207 ms | 384 KB |
subtask_1_42.txt | AC | 206 ms | 384 KB |
subtask_1_43.txt | AC | 205 ms | 384 KB |
subtask_1_44.txt | AC | 206 ms | 384 KB |
subtask_1_45.txt | AC | 204 ms | 384 KB |
subtask_1_46.txt | AC | 206 ms | 384 KB |