| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 108119 |
2019-04-27T13:51:56 Z |
hugo_pm |
Lamps (JOI19_lamps) |
C++17 |
|
151 ms |
67072 KB |
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define form2(i, a, b) for (int i = (a); i < (b); ++i)
#define ford2(i, a, b) for (int i = (a-1); i >= (b); --i)
#define form(i, n) form2(i, 0, n)
#define ford(i, n) ford2(i, n, 0)
#define chmax(x, v) x = max(x, (v))
#define chmin(x, v) x = min(x, (v))
#define fi first
#define se second
const long long BIG = 1000000000000000000LL;
typedef long long ll;
typedef long double ld;
typedef pair<int, int> pii;
void solve();
signed main()
{
ios::sync_with_stdio(false);
cin.tie(0);
solve();
return 0;
}
const int borne = 1000*1000 + 5;
int dp[borne][2][3];
int len;
int cur[borne];
int cible[borne];
void calc(int dep, int isToggle, int set)
{
int &rep = dp[dep][isToggle][set];
rep = BIG;
if (dep) {
int vc = cur[dep];
if (isToggle) vc ^= 1;
if (set < 2) vc = set;
if (vc != cible[dep]) { rep = BIG; return; }
}
if (dep == len) { rep = 0; return; }
form(newTog, 2) form(newSet, 3) {
int cx = dp[dep+1][newTog][newSet];
if (newTog == 1 && isToggle == 0) ++cx;
if (newSet != set && newSet != 2) ++cx;
chmin(rep, cx);
}
}
void solve()
{
cin >> len;
string s, t;
cin >> s >> t;
form(i, len) cur[i+1] = (s[i] == '0' ? 0 : 1);
form(i, len) cible[i+1] = (t[i] == '0' ? 0 : 1);
ford(i, len) form(a, 2) form(b, 3) calc(i+1,a,b);
calc(0, 0, 2);
cout << dp[0][0][2] << "\n";
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
384 KB |
Output is correct |
| 2 |
Correct |
3 ms |
384 KB |
Output is correct |
| 3 |
Correct |
2 ms |
384 KB |
Output is correct |
| 4 |
Correct |
2 ms |
384 KB |
Output is correct |
| 5 |
Correct |
2 ms |
384 KB |
Output is correct |
| 6 |
Correct |
2 ms |
384 KB |
Output is correct |
| 7 |
Correct |
2 ms |
384 KB |
Output is correct |
| 8 |
Correct |
3 ms |
384 KB |
Output is correct |
| 9 |
Correct |
2 ms |
384 KB |
Output is correct |
| 10 |
Correct |
3 ms |
384 KB |
Output is correct |
| 11 |
Correct |
3 ms |
384 KB |
Output is correct |
| 12 |
Correct |
2 ms |
384 KB |
Output is correct |
| 13 |
Correct |
3 ms |
384 KB |
Output is correct |
| 14 |
Correct |
2 ms |
384 KB |
Output is correct |
| 15 |
Correct |
2 ms |
384 KB |
Output is correct |
| 16 |
Incorrect |
2 ms |
384 KB |
Output isn't correct |
| 17 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
384 KB |
Output is correct |
| 2 |
Correct |
3 ms |
384 KB |
Output is correct |
| 3 |
Correct |
2 ms |
384 KB |
Output is correct |
| 4 |
Correct |
2 ms |
384 KB |
Output is correct |
| 5 |
Correct |
2 ms |
384 KB |
Output is correct |
| 6 |
Correct |
2 ms |
384 KB |
Output is correct |
| 7 |
Correct |
2 ms |
384 KB |
Output is correct |
| 8 |
Correct |
3 ms |
384 KB |
Output is correct |
| 9 |
Correct |
2 ms |
384 KB |
Output is correct |
| 10 |
Correct |
3 ms |
384 KB |
Output is correct |
| 11 |
Correct |
3 ms |
384 KB |
Output is correct |
| 12 |
Correct |
2 ms |
384 KB |
Output is correct |
| 13 |
Correct |
3 ms |
384 KB |
Output is correct |
| 14 |
Correct |
2 ms |
384 KB |
Output is correct |
| 15 |
Correct |
2 ms |
384 KB |
Output is correct |
| 16 |
Incorrect |
2 ms |
384 KB |
Output isn't correct |
| 17 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
384 KB |
Output is correct |
| 2 |
Correct |
3 ms |
384 KB |
Output is correct |
| 3 |
Correct |
2 ms |
384 KB |
Output is correct |
| 4 |
Correct |
2 ms |
256 KB |
Output is correct |
| 5 |
Correct |
3 ms |
384 KB |
Output is correct |
| 6 |
Correct |
2 ms |
384 KB |
Output is correct |
| 7 |
Correct |
116 ms |
66936 KB |
Output is correct |
| 8 |
Correct |
127 ms |
66944 KB |
Output is correct |
| 9 |
Correct |
125 ms |
66972 KB |
Output is correct |
| 10 |
Correct |
113 ms |
67024 KB |
Output is correct |
| 11 |
Correct |
138 ms |
67016 KB |
Output is correct |
| 12 |
Correct |
134 ms |
67048 KB |
Output is correct |
| 13 |
Correct |
151 ms |
67012 KB |
Output is correct |
| 14 |
Correct |
146 ms |
67072 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
384 KB |
Output is correct |
| 2 |
Correct |
3 ms |
384 KB |
Output is correct |
| 3 |
Correct |
2 ms |
384 KB |
Output is correct |
| 4 |
Correct |
2 ms |
384 KB |
Output is correct |
| 5 |
Correct |
2 ms |
384 KB |
Output is correct |
| 6 |
Correct |
2 ms |
384 KB |
Output is correct |
| 7 |
Correct |
2 ms |
384 KB |
Output is correct |
| 8 |
Correct |
3 ms |
384 KB |
Output is correct |
| 9 |
Correct |
2 ms |
384 KB |
Output is correct |
| 10 |
Correct |
3 ms |
384 KB |
Output is correct |
| 11 |
Correct |
3 ms |
384 KB |
Output is correct |
| 12 |
Correct |
2 ms |
384 KB |
Output is correct |
| 13 |
Correct |
3 ms |
384 KB |
Output is correct |
| 14 |
Correct |
2 ms |
384 KB |
Output is correct |
| 15 |
Correct |
2 ms |
384 KB |
Output is correct |
| 16 |
Incorrect |
2 ms |
384 KB |
Output isn't correct |
| 17 |
Halted |
0 ms |
0 KB |
- |
