Submission #5565240
Source Code Expand
#include <algorithm> #include <iostream> #include <vector> #include <bitset> #include <set> using namespace std; typedef long long ll; typedef pair <ll, ll> pii; const ll MAX_N = 4e3 + 6, inf = 1e9 + 7; string A, B; bitset <MAX_N> a, b, c, d, Lf[MAX_N], Rt[MAX_N]; vector <pii> seg; ll n, ans = inf; pii Arr[MAX_N]; ll mx[MAX_N]; bool cmp (pii a, pii b) { return a.second < b.second; } int main() { ios::sync_with_stdio(false), cin.tie(0); cin >> A >> B; n = A.size(); for (ll i = 0; i < n; i++) { a[i] = (A[n - i - 1] == '1'); b[i] = (B[n - i - 1] == '1'); d[i] = true; } ll tmp = b.count() + a.count(); if (b.count() == 0) { if (a.count() == 0) cout << "0\n"; else cout << "-1\n"; return 0; } for (ll i = 0; i < n; i++) { ll ind = -1, cnt = 0; for (ll j = i; ~j; j--, cnt++) if (B[j] == '1') { ind = j; break; } if (ind == -1) for (ll j = n - 1; ~j; j--, cnt++) if (B[j] == '1') { ind = j; break; } Arr[i].first = cnt; cnt = 0; ind = -1; for (ll j = i; j < n; j++, cnt++) if (B[j] == '1') { ind = j; break; } if (ind == -1) for (ll j = 0; j < n - 1; j++, cnt++) if (B[j] == '1') { ind = j; break; } Arr[i].second = cnt; if (A[i] == '1') seg.push_back({Arr[i].second, Arr[i].first}); } sort(seg.begin(), seg.end()); for (ll i = seg.size() - 1; ~i; i--) mx[i] = max(mx[i + 1], seg[i].second); for (ll len = 0; len < n; len++) { ll res = inf; for (ll i = len; i < n; i++) { ll ind = upper_bound(seg.begin(), seg.end(), pii(i, inf)) - seg.begin(); res = min(res, i + (i - len) + (mx[ind] << 1)); } c = a; c = (c >> len) | ((c << (n - len)) & d); res += tmp - ((b & c).count() << 1); ans = min(ans, res); } seg.clear(); for (int i = 0; i < n; i++) if (A[i] == '1') seg.push_back(Arr[i]); sort(seg.begin(), seg.end()); for (ll i = seg.size() - 1; ~i; i--) mx[i] = max(mx[i + 1], seg[i].second); for (ll len = 0; len < n; len++) { ll res = inf; for (ll i = len; i < n; i++) { ll ind = upper_bound(seg.begin(), seg.end(), pii(i, inf)) - seg.begin(); res = min(res, i + (i - len) + (mx[ind] << 1)); } c = a; c = ((c << len) & d) | ((c << len) >> n); res += tmp - ((b & c).count() << 1); ans = min(ans, res); } cout << ans << "\n"; return 0; }
Submission Info
Submission Time | |
---|---|
Task | D - Shift and Flip |
User | vjudge3 |
Language | C++14 (Clang 3.8.0) |
Score | 1000 |
Code Size | 2607 Byte |
Status | AC |
Exec Time | 225 ms |
Memory | 384 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 1000 / 1000 | ||||
Status |
|
|
Set Name | Test Cases |
---|---|
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 | 10 ms | 256 KB |
subtask_1_06.txt | AC | 1 ms | 256 KB |
subtask_1_07.txt | AC | 85 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 | 256 KB |
subtask_1_11.txt | AC | 77 ms | 384 KB |
subtask_1_12.txt | AC | 77 ms | 384 KB |
subtask_1_13.txt | AC | 77 ms | 384 KB |
subtask_1_14.txt | AC | 164 ms | 384 KB |
subtask_1_15.txt | AC | 128 ms | 384 KB |
subtask_1_16.txt | AC | 94 ms | 384 KB |
subtask_1_17.txt | AC | 91 ms | 384 KB |
subtask_1_18.txt | AC | 80 ms | 384 KB |
subtask_1_19.txt | AC | 86 ms | 384 KB |
subtask_1_20.txt | AC | 78 ms | 384 KB |
subtask_1_21.txt | AC | 133 ms | 384 KB |
subtask_1_22.txt | AC | 134 ms | 384 KB |
subtask_1_23.txt | AC | 225 ms | 384 KB |
subtask_1_24.txt | AC | 225 ms | 384 KB |
subtask_1_25.txt | AC | 224 ms | 384 KB |
subtask_1_26.txt | AC | 1 ms | 256 KB |
subtask_1_27.txt | AC | 2 ms | 256 KB |
subtask_1_28.txt | AC | 5 ms | 256 KB |
subtask_1_29.txt | AC | 19 ms | 256 KB |
subtask_1_30.txt | AC | 79 ms | 384 KB |
subtask_1_31.txt | AC | 1 ms | 256 KB |
subtask_1_32.txt | AC | 2 ms | 256 KB |
subtask_1_33.txt | AC | 2 ms | 256 KB |
subtask_1_34.txt | AC | 6 ms | 256 KB |
subtask_1_35.txt | AC | 24 ms | 256 KB |
subtask_1_36.txt | AC | 80 ms | 384 KB |
subtask_1_37.txt | AC | 2 ms | 256 KB |
subtask_1_38.txt | AC | 2 ms | 256 KB |
subtask_1_39.txt | AC | 6 ms | 256 KB |
subtask_1_40.txt | AC | 20 ms | 256 KB |
subtask_1_41.txt | AC | 80 ms | 384 KB |
subtask_1_42.txt | AC | 80 ms | 384 KB |
subtask_1_43.txt | AC | 80 ms | 384 KB |
subtask_1_44.txt | AC | 80 ms | 384 KB |
subtask_1_45.txt | AC | 80 ms | 384 KB |
subtask_1_46.txt | AC | 80 ms | 384 KB |