CSES - Datatähti 2023 loppu

Submission details
Task:	Unirytmi
Sender:	vgtcross
Submission time:	2023-04-23 22:13:08 +0300
Language:	C++ (C++11)
Status:	READY
Result:	41

Feedback
group	verdict	score
#1	ACCEPTED	13
#2	ACCEPTED	28
#3	RUNTIME ERROR	0
#4	RUNTIME ERROR	0

Test results
test	verdict	time	group
#1	ACCEPTED	0.05 s	1, 2, 3, 4	details
#2	ACCEPTED	0.06 s	1, 2, 3, 4	details
#3	ACCEPTED	0.06 s	2, 4	details
#4	ACCEPTED	0.06 s	1, 2, 3, 4	details
#5	RUNTIME ERROR	0.01 s	3, 4	details
#6	ACCEPTED	0.05 s	2, 3, 4	details
#7	RUNTIME ERROR	0.00 s	4	details
#8	RUNTIME ERROR	0.00 s	4	details
#9	ACCEPTED	0.05 s	1, 2, 3, 4	details
#10	ACCEPTED	0.05 s	2, 4	details
#11	RUNTIME ERROR	0.00 s	3, 4	details
#12	ACCEPTED	0.05 s	1, 2, 3, 4	details
#13	ACCEPTED	0.05 s	1, 2, 3, 4	details
#14	ACCEPTED	0.25 s	2, 4	details
#15	ACCEPTED	0.06 s	2, 3, 4	details
#16	RUNTIME ERROR	0.00 s	4	details
#17	ACCEPTED	0.05 s	2, 4	details
#18	ACCEPTED	0.24 s	2, 4	details

Code

#include <bits/stdc++.h>

#define MODE 0

#if MODE == 0
#define debug(x) cout << #x << ": " << x << endl
#define log(x) cout << x << endl
#define test(x) x
#else
#define debug(x)
#define log(x)
#define test(x)
#endif

#define M 1000000007
#define all(x) (x).begin(),(x).end()
#define rall(x) (x).rbegin(),(x).rend()
#define fi first
#define se second

using namespace std;
using ll = long long;
using ld = long double;
using uint = unsigned int;
using ull = unsigned long long;
using pii = pair<int, int>;
using pli = pair<ll, int>;
using pll = pair<ll, ll>;

const int N = 1000000;

int dp[N+1];
int evn[N+1];

void solve() {
    int n, a, b, c;
    cin >> n >> a >> b >> c;
    
    for (int i = 0; i < n; ++i) {
        int p;
        cin >> p;
        evn[p] = 1;
    }
    
    multiset<int> m;
    int cnt = 0;
    for (int i = N; i >= 0; --i) {
        cnt += evn[i];
        if (i+c+a <= N) m.insert(dp[i+c+a]);
        
        dp[i] = cnt + (m.empty() ? 0 : *m.begin());
        
        if (i+c <= N) cnt -= evn[i+c];
        if (i+c+b <= N) m.erase(m.find(dp[i+c+b]));
    }
    
    int ans = 0;
    for (int i = a; i <= b; ++i) {
        ans = max(ans, n - dp[i]);
    }
    
    cout << ans << '\n';
}

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(nullptr);

    solve();

    return 0;
}

Test details

Test 1

Group: 1, 2, 3, 4

Verdict: ACCEPTED

input
`3 5 7 5 5 8 12` view save

correct output
`2` view save

user output
`2` view save

Test 2

Group: 1, 2, 3, 4

Verdict: ACCEPTED

input
`3 5 7 5 6 21 22` view save

correct output
`2` view save

user output
`2` view save

Test 3

Group: 2, 4

Verdict: ACCEPTED

input
`1000 127 134 713 491 3778 4129 4563 6372 7347 7...` view save

correct output
`281` view save

user output
`281` view save

Test 4

Group: 1, 2, 3, 4

Verdict: ACCEPTED

input
`15 11 13 11 2 14 17 22 23 25 27 31 32 69 7...` view save

correct output
`11` view save

user output
`11` view save

Test 5

Group: 3, 4

Verdict: RUNTIME ERROR

input
`200 1 2 100 94623 612821 706074 2477208 33...` view save

correct output
`196` view save

user output
(empty)

Test 6

Group: 2, 3, 4

Verdict: ACCEPTED

input
`200 27 30 100 8 183 310 517 819 927 1276 146...` view save

correct output
`87` view save

user output
`87` view save

Test 7

Group: 4

Verdict: RUNTIME ERROR

input
`1000 71428 72356 221426 109849 411498 1480476 1734215 ...` view save

correct output
`369` view save

user output
(empty)

Test 8

Group: 4

Verdict: RUNTIME ERROR

input
`1000 71428 71429 220426 557231 743380 905998 1053927 1...` view save

correct output
`266` view save

user output
(empty)

Test 9

Group: 1, 2, 3, 4

Verdict: ACCEPTED

input
`74 1 3 3 1 2 4 6 7 8 9 11 13 14 15 16 1...` view save

correct output
`29` view save

user output
`29` view save

Test 10

Group: 2, 4

Verdict: ACCEPTED

input
`1000 478 479 1426 800 1062 2097 3132 4106 6698 7...` view save

correct output
`275` view save

user output
`275` view save

Test 11

Group: 3, 4

Verdict: RUNTIME ERROR

input
`200 4 5 93 84806 597999 828025 1057335 16...` view save

correct output
`198` view save

user output
(empty)

Test 12

Group: 1, 2, 3, 4

Verdict: ACCEPTED

input
`9 2 2 1 1 2 3 4 5 6 7 8 9` view save

correct output
`3` view save

user output
`3` view save

Test 13

Group: 1, 2, 3, 4

Verdict: ACCEPTED

input
`30 5 7 5 2 3 4 5 6 10 11 16 19 20 21 23...` view save

correct output
`19` view save

user output
`19` view save

Test 14

Group: 2, 4

Verdict: ACCEPTED

input
`1000 1 1000000 1 176 273 1016 1529 1642 2291 30...` view save

correct output
`1000` view save

user output
`1000` view save

Test 15

Group: 2, 3, 4

Verdict: ACCEPTED

input
`200 3 7 69 334 429 1639 1775 1840 1971 21...` view save

correct output
`110` view save

user output
`110` view save

Test 16

Group: 4

Verdict: RUNTIME ERROR

input
`1000 1 2 250000 500004 1000007 1500010 2000013...` view save

correct output
`1000` view save

user output
(empty)

Test 17

Group: 2, 4

Verdict: ACCEPTED

input
`1000 1 2 497 998 1995 2992 3989 4986 5983 6...` view save

correct output
`1000` view save

user output
`1000` view save

Test 18

Group: 2, 4

Verdict: ACCEPTED

input
`1000 1 704731 20372 1901 3947 4720 5745 6005 6413 ...` view save

correct output
`989` view save

user output
`989` view save

Datatähti 2023 loppu

Unirytmi

Code

Test details

Test 1

Test 2

Test 3

Test 4

Test 5

Test 6

Test 7

Test 8

Test 9

Test 10

Test 11

Test 12

Test 13

Test 14

Test 15

Test 16

Test 17

Test 18

Tasks

Submissions (vgtcross)