CSES - Datatähti 2017 alku - Results
Submission details
Task:Pakkaus
Sender:ollpu
Submission time:2016-10-06 09:24:00 +0300
Language:C++
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
#30
Test results
testverdicttimegroup
#10.06 s1details
#20.06 s1details
#30.05 s1details
#40.06 s1details
#50.06 s1details
#60.06 s2details
#70.05 s2details
#80.05 s2details
#90.05 s2details
#100.06 s2details
#110.05 s3details
#120.05 s3details
#130.14 s3details
#140.06 s3details
#150.06 s3details

Code

#include <iostream>
#include <algorithm>
#include <set>
using namespace std;
#define F first
#define S second
const int N = 1<<17;
pair<int,int> mint[N<<1];
int p3t[N<<1];
void build_mint() {
for (int i = N-1; i > 0; --i) {
if (mint[i*2].F < mint[i*2+1].F || mint[i*2+1].F == 0) {
mint[i] = mint[i*2];
} else {
mint[i] = mint[i*2+1];
}
}
}
int mint_find(int a, int b) {
a += N; b += N;
int minv = mint[a].F, mini = mint[a].S;
while (a <= b) {
if (a&1 && mint[a++].F < minv) {
minv = mint[a-1].F;
mini = mint[a-1].S;
}
if (!(b&1) && mint[b--].F < minv) {
minv = mint[b+1].F;
mini = mint[b+1].S;
}
a >>= 1; b >>= 1;
}
return mini;
}
void p3t_add(int i) {
i += N;
while (i) {
p3t[i]++;
i >>= 1;
}
}
void p3t_decr(int i) {
i += N;
while (i) {
p3t[i]--;
i >>= 1;
}
}
int p3t_sum(int i) {
i += N;
int a = N;
int sum = 0;
while (a <= i) {
if (a&1) sum += p3t[a++];
if (!(i&1)) sum += p3t[i--];
a >>= 1; i >>= 1;
}
return sum;
}
void ole() {
while (true) cout << "asd";
}
int main() {
ios_base::sync_with_stdio(0);
cin.tie(0);
int n;
cin >> n;
int t[n];
pair<int, int> s[n];
for (int i = 0; i < n; ++i) {
cin >> t[i];
s[i] = {t[i], i};
mint[N+i] = {t[i], i};
}
build_mint();
sort(s, s+n, greater<pair<int,int>>());
int resultA = 0, resultB = 0, result;
for (int i = 0; i < n; ++i) {
if (i%2) resultA = max(resultA, t[i]);
else resultB = max(resultB, t[i]);
}
result = resultA + resultB;
bool m2improves = 0;
int p1_v = s[0].F, p2_v = 0, p3_v = 0;
set<int> sp_locs;
int sp_n_p3[n];
int is_p3[n];
int msp_loc = s[0].S;
sp_locs.insert(msp_loc);
sp_n_p3[msp_loc] = -1;
// clog << msp_loc << endl;
for (int si = 1; si < n; ++si) {
int i = s[si].S, next_v = s[si+1].F;
// clog << i << endl;
set<int>::iterator it = sp_locs.upper_bound(i);
if ((i+p3t_sum(i))%2 != (msp_loc+p3t_sum(msp_loc))%2) {
if (it == sp_locs.end()) {
it--;
int psp_loc = *it;
if (abs(psp_loc-i) <3) break;
int p3_loc = mint_find(psp_loc+1, i-1);
p3_v = max(p3_v, t[p3_loc]);
sp_locs.insert(i);
if (sp_n_p3[psp_loc] != -1) p3t_decr(sp_n_p3[psp_loc]);
p3t_add(p3_loc);
p2_v = next_v;
sp_n_p3[psp_loc] = p3_loc;
sp_n_p3[i] = -1;
} else if (it == sp_locs.begin()) {
int nsp_loc = *it;
if (abs(nsp_loc-i) <3) break;
int p3_loc = mint_find(i+1, nsp_loc-1);
// clog << p3_loc << endl;
p3_v = max(p3_v, t[p3_loc]);
sp_locs.insert(i);
p3t_add(p3_loc);
p2_v = next_v;
sp_n_p3[i] = p3_loc;
} else {
set<int>::iterator bit = it;
bit--;
int psp_loc = *bit, nsp_loc = *it;
if (abs(psp_loc-i) <3 || abs(nsp_loc-i) <3) break;
int pp3_loc = mint_find(psp_loc+1, i-1),
np3_loc = mint_find(i+1, nsp_loc-1);
p3_v = max(t[pp3_loc], t[np3_loc]);
sp_locs.insert(i);
if (sp_n_p3[psp_loc] != -1) p3t_decr(sp_n_p3[psp_loc]);
sp_n_p3[psp_loc] = pp3_loc;
sp_n_p3[i] = np3_loc;
p3t_add(pp3_loc); p3t_add(np3_loc);
p2_v = next_v;
}
} else {
if (it == sp_locs.begin()) {
sp_n_p3[i] = -1;
} else {
it--;
int psp_loc = *it;
int op_n_p3 = sp_n_p3[psp_loc];
if (op_n_p3 != -1) {
if (op_n_p3 < i) {
sp_n_p3[i] = -1;
} else if (op_n_p3 > i) {
sp_n_p3[psp_loc] = -1;
sp_n_p3[i] = op_n_p3;
} else ole();
} else {
sp_n_p3[i] = -1;
}
}
sp_locs.insert(i);
p2_v = next_v;
}
if (p1_v + p2_v + p3_v < result) {
m2improves = 1;
result = p1_v + p2_v + p3_v;
for (int j = 0; j < n; ++j) {
is_p3[j] = p3t[j+N];
}
}
// for (int j = 0; j < n; ++j) {
// clog << p3t[j+N] << ' ';
// }
// clog << endl;
}
// clog << endl;
if (m2improves) {
cout << result << (p3_v ? " 3\n" : " 2\n");
int invs = 0;
for (int i = 0; i < n; ++i) {
if (is_p3[i]) {
invs++;
cout << "3 ";
} else if ((i+invs)%2) {
cout << "2 ";
} else {
cout << "1 ";
}
}
} else {
cout << resultA+resultB << " 2" << endl;
for (int i = 0; i < n; ++i) {
if (i%2) cout << "2 "; else cout << "1 ";
}
}
}

Test details

Test 1

Group: 1

Verdict:

input
1AAAAAAAAAAAAAAAAAAAA

correct output
AAAAAAAAAAAAAAAAAAAA

user output
0 2

Test 2

Group: 1

Verdict:

input
1A1A1A1A1A1A1A1A1A1A1A1A1A1A1A...

correct output
AAAAAAAAAAAAAAAAAAAA

user output
0 2

Test 3

Group: 1

Verdict:

input
20A

correct output
AAAAAAAAAAAAAAAAAAAA

user output
78250236 2
1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 ...

Test 4

Group: 1

Verdict:

input
2N1J2F1XH2D2B2VT1N1ES

correct output
NNJFFXHDDBBVTVTNES

user output
32764 2
1 2 

Test 5

Group: 1

Verdict:

input
2Z1E1UN1P2A2A1D2F2EZ1FZ1J

correct output
ZZEUNPAAAADFFEZEZFZJ

user output
32766 2
1 2 

Test 6

Group: 2

Verdict:

input
1AAAAAAAAAAAAAAAAAAAAAAAAAAAAA...

correct output
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...

user output
0 2

Test 7

Group: 2

Verdict:

input
1A1A1A1A1A1A1A1A1A1A1A1A1A1A1A...

correct output
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...

user output
0 2

Test 8

Group: 2

Verdict:

input
1000A

correct output
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...

user output
-1400702101 3
1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 ...
Truncated

Test 9

Group: 2

Verdict:

input
11QOUDQFAFUPAYCPXZ15KANCLRGT9S...

correct output
QOUDQFAFUPAYCPXZQOUDQFAFUPAYCP...

user output
4230339 2
1 2 1 2 1 2 1 2 1 2 1 

Test 10

Group: 2

Verdict:

input
20NFBIUXOSO10XRXZRMULZDUFK14BB...

correct output
NFBIUXOSONFBIUXOSONFBIUXOSONFB...

user output
1530974860 2
1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 ...

Test 11

Group: 3

Verdict:

input
1AAAAAAAAAAAAAAAAAAAAAAAAAAAAA...

correct output
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...

user output
0 2

Test 12

Group: 3

Verdict:

input
1A1A1A1A1A1A1A1A1A1A1A1A1A1A1A...

correct output
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...

user output
0 2

Test 13

Group: 3

Verdict:

input
1000000A

correct output
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...

user output
(empty)

Test 14

Group: 3

Verdict:

input
87GEIGDBZCYGSFYYCGQUAWQJFUUAQG...

correct output
GEIGDBZCYGSFYYCGQUAWQJFUUAQGDT...

user output
-2124402487 3
1 2 1 2 1 2 1 2 1 2 3 1 2 1 2 ...
Truncated

Test 15

Group: 3

Verdict:

input
316XXYCLTBFQRAXHQPTLDB275NMQJD...

correct output
XXYCLTBFQRAXHQPTLDBXXYCLTBFQRA...

user output
-1502448705 3
1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 ...
Truncated