#include <bits/stdc++.h>
using namespace std;
typedef long double ld;
typedef pair<ld, int> pdi;
typedef pair<int, int> pii;
const int MAXN = 2e6;
pdi dp[MAXN];
const int inf = 1e9;
int n, d, t;
int vals[MAXN];
class STree {
public:
int n;
pdi *mn;
int *lz;
int *lval;
int *rval;
STree() {}
STree(int nn) {
n = pow(2, ceil(log2(nn)));
mn = new pdi[2*n];
lz = new int[2*n];
lval = new int[2*n];
rval = new int[2*n];
for (int i = 1; i < 2*n; i++) mn[i] = pdi(inf, 0);
fill(lz, lz+2*n, 0);
for (int i = n; i < 2*n; i++) {
lval[i] = i-n;
rval[i] = i-n+1;
}
for (int i = n-1; i > 0; i--) {
lval[i] = lval[2*i];
rval[i] = rval[2*i+1];
}
}
void clean() {
for (int i = 1; i < 2*n; i++) mn[i] = pdi(inf, 0);
fill(lz, lz+2*n, 0);
}
void increment(int l, int r, int cur = 1) {
if (lval[cur] >= r || rval[cur] <= l) return;
if (lval[cur] >= l && rval[cur] <= r) {
lz[cur]++;
mn[cur].first++;
return;
}
increment(l, r, 2*cur);
increment(l, r, 2*cur+1);
mn[cur] = min(mn[2*cur], mn[2*cur+1]);
mn[cur].first += lz[cur];
}
pdi mnval(int l, int r, int cur = 1, int laz = 0) {
if (lval[cur] >= r || rval[cur] <= l) return pdi(inf, 0);
if (lval[cur] >= l && rval[cur] <= r) return pdi(mn[cur].first+laz, mn[cur].second);
laz += lz[cur];
return min(mnval(l, r, 2*cur, laz), mnval(l, r, 2*cur+1, laz));
}
void update(int i, pdi v, int cur = 1, int laz = 0) {
if (lval[cur] > i || rval[cur] <= i) return;
if (cur >= n) {
mn[cur] = pdi(v.first-laz, v.second);
return;
}
laz += lz[cur];
update(i, v, 2*cur, laz);
update(i, v, 2*cur+1, laz);
mn[cur] = min(mn[2*cur], mn[2*cur+1]);
mn[cur].first += lz[cur];
}
};
STree s;
const int iters = 25;
int get_int(int i) {
if (vals[i] > t) return i;
return i+(t-vals[i])+1;
}
bool make_iter(ld &mn, ld &mx, bool force = 0) {
vector<int> uncolored;
//STree s(n);
ld cost = (mn+mx)/2;
for (int i = n-1; i >= 0; i--) {
if (i == n-1) dp[i] = pdi(0, 0);
else {
pdi mnval = s.mnval(i+1, n);
mnval.first += cost;
mnval.second++;
dp[i] = mnval;
}
s.update(i, dp[i]);
uncolored.push_back(i);
int r = get_int(i);
while (!uncolored.empty() && uncolored.back() < r) {
int cur = uncolored.back();
uncolored.pop_back();
s.increment(cur, n);
}
}
pdi overall = s.mnval(0, n);
if (overall.second == d || force) { // we are done
cout << round(overall.first-cost*d) << "\n";
return 1;
}
if (overall.second < d) mx = cost;
else mn = cost;
return 0;
}
int main() {
ios_base::sync_with_stdio(false); cin.tie(NULL);
cin >> n >> d >> t;
for (int i = 0; i < n; i++) cin >> vals[i];
ld mn = 0;
ld mx = n;
s = STree(n);
for (int t = 0; t < iters; t++) {
bool fin = make_iter(mn, mx);
if (fin) return 0;
s.clean();
}
//assert(false);
make_iter(mn, mx, 1);
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
6 ms |
340 KB |
Output is correct |
3 |
Correct |
6 ms |
392 KB |
Output is correct |
4 |
Correct |
8 ms |
340 KB |
Output is correct |
5 |
Correct |
8 ms |
340 KB |
Output is correct |
6 |
Correct |
3 ms |
340 KB |
Output is correct |
7 |
Correct |
3 ms |
340 KB |
Output is correct |
8 |
Correct |
7 ms |
340 KB |
Output is correct |
9 |
Correct |
6 ms |
400 KB |
Output is correct |
10 |
Correct |
7 ms |
340 KB |
Output is correct |
11 |
Correct |
6 ms |
396 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Execution timed out |
2068 ms |
63112 KB |
Time limit exceeded |
3 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
6 ms |
340 KB |
Output is correct |
3 |
Correct |
6 ms |
392 KB |
Output is correct |
4 |
Correct |
8 ms |
340 KB |
Output is correct |
5 |
Correct |
8 ms |
340 KB |
Output is correct |
6 |
Correct |
3 ms |
340 KB |
Output is correct |
7 |
Correct |
3 ms |
340 KB |
Output is correct |
8 |
Correct |
7 ms |
340 KB |
Output is correct |
9 |
Correct |
6 ms |
400 KB |
Output is correct |
10 |
Correct |
7 ms |
340 KB |
Output is correct |
11 |
Correct |
6 ms |
396 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
6 ms |
340 KB |
Output is correct |
14 |
Correct |
6 ms |
392 KB |
Output is correct |
15 |
Correct |
7 ms |
396 KB |
Output is correct |
16 |
Correct |
7 ms |
340 KB |
Output is correct |
17 |
Correct |
3 ms |
340 KB |
Output is correct |
18 |
Correct |
2 ms |
340 KB |
Output is correct |
19 |
Correct |
7 ms |
408 KB |
Output is correct |
20 |
Correct |
6 ms |
340 KB |
Output is correct |
21 |
Correct |
7 ms |
340 KB |
Output is correct |
22 |
Correct |
7 ms |
396 KB |
Output is correct |
23 |
Correct |
69 ms |
724 KB |
Output is correct |
24 |
Correct |
68 ms |
724 KB |
Output is correct |
25 |
Correct |
67 ms |
732 KB |
Output is correct |
26 |
Correct |
67 ms |
724 KB |
Output is correct |
27 |
Correct |
67 ms |
828 KB |
Output is correct |
28 |
Correct |
67 ms |
824 KB |
Output is correct |
29 |
Correct |
67 ms |
824 KB |
Output is correct |
30 |
Correct |
62 ms |
852 KB |
Output is correct |
31 |
Correct |
60 ms |
852 KB |
Output is correct |
32 |
Correct |
60 ms |
852 KB |
Output is correct |
33 |
Correct |
63 ms |
736 KB |
Output is correct |
34 |
Correct |
28 ms |
724 KB |
Output is correct |
35 |
Correct |
68 ms |
852 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1977 ms |
14276 KB |
Output is correct |
3 |
Correct |
1959 ms |
14276 KB |
Output is correct |
4 |
Correct |
1865 ms |
14900 KB |
Output is correct |
5 |
Correct |
1830 ms |
14928 KB |
Output is correct |
6 |
Correct |
1838 ms |
14944 KB |
Output is correct |
7 |
Correct |
1629 ms |
14536 KB |
Output is correct |
8 |
Correct |
1603 ms |
14900 KB |
Output is correct |
9 |
Correct |
1819 ms |
15252 KB |
Output is correct |
10 |
Correct |
1821 ms |
14340 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
6 ms |
340 KB |
Output is correct |
3 |
Correct |
6 ms |
392 KB |
Output is correct |
4 |
Correct |
8 ms |
340 KB |
Output is correct |
5 |
Correct |
8 ms |
340 KB |
Output is correct |
6 |
Correct |
3 ms |
340 KB |
Output is correct |
7 |
Correct |
3 ms |
340 KB |
Output is correct |
8 |
Correct |
7 ms |
340 KB |
Output is correct |
9 |
Correct |
6 ms |
400 KB |
Output is correct |
10 |
Correct |
7 ms |
340 KB |
Output is correct |
11 |
Correct |
6 ms |
396 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
6 ms |
340 KB |
Output is correct |
14 |
Correct |
6 ms |
392 KB |
Output is correct |
15 |
Correct |
7 ms |
396 KB |
Output is correct |
16 |
Correct |
7 ms |
340 KB |
Output is correct |
17 |
Correct |
3 ms |
340 KB |
Output is correct |
18 |
Correct |
2 ms |
340 KB |
Output is correct |
19 |
Correct |
7 ms |
408 KB |
Output is correct |
20 |
Correct |
6 ms |
340 KB |
Output is correct |
21 |
Correct |
7 ms |
340 KB |
Output is correct |
22 |
Correct |
7 ms |
396 KB |
Output is correct |
23 |
Correct |
69 ms |
724 KB |
Output is correct |
24 |
Correct |
68 ms |
724 KB |
Output is correct |
25 |
Correct |
67 ms |
732 KB |
Output is correct |
26 |
Correct |
67 ms |
724 KB |
Output is correct |
27 |
Correct |
67 ms |
828 KB |
Output is correct |
28 |
Correct |
67 ms |
824 KB |
Output is correct |
29 |
Correct |
67 ms |
824 KB |
Output is correct |
30 |
Correct |
62 ms |
852 KB |
Output is correct |
31 |
Correct |
60 ms |
852 KB |
Output is correct |
32 |
Correct |
60 ms |
852 KB |
Output is correct |
33 |
Correct |
63 ms |
736 KB |
Output is correct |
34 |
Correct |
28 ms |
724 KB |
Output is correct |
35 |
Correct |
68 ms |
852 KB |
Output is correct |
36 |
Correct |
0 ms |
212 KB |
Output is correct |
37 |
Correct |
1977 ms |
14276 KB |
Output is correct |
38 |
Correct |
1959 ms |
14276 KB |
Output is correct |
39 |
Correct |
1865 ms |
14900 KB |
Output is correct |
40 |
Correct |
1830 ms |
14928 KB |
Output is correct |
41 |
Correct |
1838 ms |
14944 KB |
Output is correct |
42 |
Correct |
1629 ms |
14536 KB |
Output is correct |
43 |
Correct |
1603 ms |
14900 KB |
Output is correct |
44 |
Correct |
1819 ms |
15252 KB |
Output is correct |
45 |
Correct |
1821 ms |
14340 KB |
Output is correct |
46 |
Correct |
0 ms |
212 KB |
Output is correct |
47 |
Correct |
6 ms |
340 KB |
Output is correct |
48 |
Correct |
6 ms |
340 KB |
Output is correct |
49 |
Correct |
8 ms |
340 KB |
Output is correct |
50 |
Correct |
7 ms |
340 KB |
Output is correct |
51 |
Correct |
3 ms |
340 KB |
Output is correct |
52 |
Correct |
3 ms |
340 KB |
Output is correct |
53 |
Correct |
7 ms |
340 KB |
Output is correct |
54 |
Correct |
7 ms |
340 KB |
Output is correct |
55 |
Correct |
7 ms |
340 KB |
Output is correct |
56 |
Correct |
6 ms |
400 KB |
Output is correct |
57 |
Correct |
73 ms |
724 KB |
Output is correct |
58 |
Correct |
71 ms |
724 KB |
Output is correct |
59 |
Correct |
68 ms |
724 KB |
Output is correct |
60 |
Correct |
68 ms |
832 KB |
Output is correct |
61 |
Correct |
67 ms |
724 KB |
Output is correct |
62 |
Correct |
68 ms |
828 KB |
Output is correct |
63 |
Correct |
68 ms |
724 KB |
Output is correct |
64 |
Correct |
62 ms |
792 KB |
Output is correct |
65 |
Correct |
61 ms |
852 KB |
Output is correct |
66 |
Correct |
61 ms |
832 KB |
Output is correct |
67 |
Correct |
63 ms |
852 KB |
Output is correct |
68 |
Correct |
29 ms |
724 KB |
Output is correct |
69 |
Correct |
69 ms |
844 KB |
Output is correct |
70 |
Correct |
0 ms |
212 KB |
Output is correct |
71 |
Correct |
1960 ms |
14340 KB |
Output is correct |
72 |
Correct |
1993 ms |
14272 KB |
Output is correct |
73 |
Correct |
1855 ms |
14812 KB |
Output is correct |
74 |
Correct |
1837 ms |
14732 KB |
Output is correct |
75 |
Correct |
1844 ms |
14776 KB |
Output is correct |
76 |
Correct |
1643 ms |
14512 KB |
Output is correct |
77 |
Correct |
1637 ms |
14880 KB |
Output is correct |
78 |
Correct |
1848 ms |
15248 KB |
Output is correct |
79 |
Correct |
1878 ms |
14336 KB |
Output is correct |
80 |
Execution timed out |
2013 ms |
14268 KB |
Time limit exceeded |
81 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
6 ms |
340 KB |
Output is correct |
3 |
Correct |
6 ms |
392 KB |
Output is correct |
4 |
Correct |
8 ms |
340 KB |
Output is correct |
5 |
Correct |
8 ms |
340 KB |
Output is correct |
6 |
Correct |
3 ms |
340 KB |
Output is correct |
7 |
Correct |
3 ms |
340 KB |
Output is correct |
8 |
Correct |
7 ms |
340 KB |
Output is correct |
9 |
Correct |
6 ms |
400 KB |
Output is correct |
10 |
Correct |
7 ms |
340 KB |
Output is correct |
11 |
Correct |
6 ms |
396 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Execution timed out |
2068 ms |
63112 KB |
Time limit exceeded |
14 |
Halted |
0 ms |
0 KB |
- |