#include <bits/stdc++.h>
using namespace std;
const int maxn = 2e5 + 10;
const int inf = 1e8;
int a[maxn], dp[maxn];
int idx = 0;
int t[maxn * 4];
void update(int x, int val, int c = 1, int b = 1, int e = idx) {
if(b == e) {
t[c] = val;
return ;
}
int m = (b + e) >> 1;
int l = c << 1;
int r = l + 1;
if(x <= m) update(x, val, l, b, m);
else update(x, val, r, m + 1, e);
t[c] = max(t[l], t[r]);
}
int query(int x, int y, int c = 1, int b = 1, int e = idx) {
if(x <= b && e <= y) return t[c];
if(y < b || e < x) return -inf;
int m = (b + e) >> 1;
int l = c << 1;
int r = l + 1;
return max(query(x, y, l, b, m), query(x, y, r, m + 1, e));
}
int main() {
int n, k;
scanf("%d %d", &n, &k);
map <long long, int> comp;
comp[0] = 0;
for(int i = 1; i <= n; i++) {
scanf("%d", &a[i]);
comp[1LL * k * i - a[i]] = 0;
}
for(auto &i : comp) {
i.second = ++idx;
}
for(int i = 1; i <= idx; i++) {
update(i, -inf);
}
update(comp[0], 0);
for(int i = 1; i <= n; i++) {
dp[i] = 1 + query(1, comp[1LL * k * i - a[i]]);
update(comp[1LL * k * i - a[i]], dp[i]);
}
cout << n - query(1, idx) << endl;
return 0;
}
Compilation message
triusis.cpp: In function 'int main()':
triusis.cpp:32:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
32 | scanf("%d %d", &n, &k);
| ~~~~~^~~~~~~~~~~~~~~~~
triusis.cpp:36:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
36 | scanf("%d", &a[i]);
| ~~~~~^~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
384 KB |
Output is correct |
| 2 |
Correct |
1 ms |
384 KB |
Output is correct |
| 3 |
Correct |
1 ms |
384 KB |
Output is correct |
| 4 |
Correct |
1 ms |
384 KB |
Output is correct |
| 5 |
Correct |
1 ms |
384 KB |
Output is correct |
| 6 |
Correct |
1 ms |
384 KB |
Output is correct |
| 7 |
Correct |
1 ms |
384 KB |
Output is correct |
| 8 |
Correct |
1 ms |
384 KB |
Output is correct |
| 9 |
Correct |
1 ms |
384 KB |
Output is correct |
| 10 |
Correct |
1 ms |
384 KB |
Output is correct |
| 11 |
Correct |
0 ms |
384 KB |
Output is correct |
| 12 |
Correct |
1 ms |
416 KB |
Output is correct |
| 13 |
Correct |
1 ms |
384 KB |
Output is correct |
| 14 |
Correct |
0 ms |
384 KB |
Output is correct |
| 15 |
Correct |
0 ms |
384 KB |
Output is correct |
| 16 |
Correct |
1 ms |
384 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
384 KB |
Output is correct |
| 2 |
Correct |
1 ms |
384 KB |
Output is correct |
| 3 |
Correct |
0 ms |
384 KB |
Output is correct |
| 4 |
Correct |
4 ms |
640 KB |
Output is correct |
| 5 |
Correct |
5 ms |
768 KB |
Output is correct |
| 6 |
Correct |
5 ms |
544 KB |
Output is correct |
| 7 |
Correct |
5 ms |
768 KB |
Output is correct |
| 8 |
Correct |
5 ms |
768 KB |
Output is correct |
| 9 |
Correct |
4 ms |
768 KB |
Output is correct |
| 10 |
Correct |
5 ms |
768 KB |
Output is correct |
| 11 |
Correct |
1 ms |
384 KB |
Output is correct |
| 12 |
Correct |
1 ms |
384 KB |
Output is correct |
| 13 |
Correct |
5 ms |
768 KB |
Output is correct |
| 14 |
Correct |
5 ms |
768 KB |
Output is correct |
| 15 |
Correct |
3 ms |
512 KB |
Output is correct |
| 16 |
Correct |
4 ms |
768 KB |
Output is correct |
| 17 |
Correct |
4 ms |
768 KB |
Output is correct |
| 18 |
Correct |
1 ms |
384 KB |
Output is correct |
| 19 |
Correct |
1 ms |
384 KB |
Output is correct |
| 20 |
Correct |
1 ms |
384 KB |
Output is correct |
| 21 |
Correct |
1 ms |
384 KB |
Output is correct |
| 22 |
Correct |
1 ms |
384 KB |
Output is correct |
| 23 |
Correct |
1 ms |
384 KB |
Output is correct |
| 24 |
Correct |
1 ms |
384 KB |
Output is correct |
| 25 |
Correct |
1 ms |
384 KB |
Output is correct |
| 26 |
Correct |
1 ms |
384 KB |
Output is correct |
| 27 |
Correct |
1 ms |
384 KB |
Output is correct |
| 28 |
Correct |
0 ms |
384 KB |
Output is correct |
| 29 |
Correct |
1 ms |
416 KB |
Output is correct |
| 30 |
Correct |
1 ms |
384 KB |
Output is correct |
| 31 |
Correct |
0 ms |
384 KB |
Output is correct |
| 32 |
Correct |
0 ms |
384 KB |
Output is correct |
| 33 |
Correct |
1 ms |
384 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
768 KB |
Output is correct |
| 2 |
Correct |
6 ms |
768 KB |
Output is correct |
| 3 |
Correct |
6 ms |
768 KB |
Output is correct |
| 4 |
Correct |
6 ms |
768 KB |
Output is correct |
| 5 |
Correct |
1 ms |
384 KB |
Output is correct |
| 6 |
Correct |
1 ms |
384 KB |
Output is correct |
| 7 |
Correct |
3 ms |
640 KB |
Output is correct |
| 8 |
Correct |
1 ms |
384 KB |
Output is correct |
| 9 |
Correct |
5 ms |
768 KB |
Output is correct |
| 10 |
Correct |
5 ms |
768 KB |
Output is correct |
| 11 |
Correct |
0 ms |
384 KB |
Output is correct |
| 12 |
Correct |
1 ms |
384 KB |
Output is correct |
| 13 |
Correct |
0 ms |
384 KB |
Output is correct |
| 14 |
Correct |
4 ms |
640 KB |
Output is correct |
| 15 |
Correct |
5 ms |
768 KB |
Output is correct |
| 16 |
Correct |
5 ms |
544 KB |
Output is correct |
| 17 |
Correct |
5 ms |
768 KB |
Output is correct |
| 18 |
Correct |
5 ms |
768 KB |
Output is correct |
| 19 |
Correct |
4 ms |
768 KB |
Output is correct |
| 20 |
Correct |
5 ms |
768 KB |
Output is correct |
| 21 |
Correct |
1 ms |
384 KB |
Output is correct |
| 22 |
Correct |
1 ms |
384 KB |
Output is correct |
| 23 |
Correct |
5 ms |
768 KB |
Output is correct |
| 24 |
Correct |
5 ms |
768 KB |
Output is correct |
| 25 |
Correct |
3 ms |
512 KB |
Output is correct |
| 26 |
Correct |
4 ms |
768 KB |
Output is correct |
| 27 |
Correct |
4 ms |
768 KB |
Output is correct |
| 28 |
Correct |
1 ms |
384 KB |
Output is correct |
| 29 |
Correct |
1 ms |
384 KB |
Output is correct |
| 30 |
Correct |
1 ms |
384 KB |
Output is correct |
| 31 |
Correct |
1 ms |
384 KB |
Output is correct |
| 32 |
Correct |
1 ms |
384 KB |
Output is correct |
| 33 |
Correct |
1 ms |
384 KB |
Output is correct |
| 34 |
Correct |
1 ms |
384 KB |
Output is correct |
| 35 |
Correct |
1 ms |
384 KB |
Output is correct |
| 36 |
Correct |
1 ms |
384 KB |
Output is correct |
| 37 |
Correct |
1 ms |
384 KB |
Output is correct |
| 38 |
Correct |
0 ms |
384 KB |
Output is correct |
| 39 |
Correct |
1 ms |
416 KB |
Output is correct |
| 40 |
Correct |
1 ms |
384 KB |
Output is correct |
| 41 |
Correct |
0 ms |
384 KB |
Output is correct |
| 42 |
Correct |
0 ms |
384 KB |
Output is correct |
| 43 |
Correct |
1 ms |
384 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
768 KB |
Output is correct |
| 2 |
Correct |
6 ms |
768 KB |
Output is correct |
| 3 |
Correct |
6 ms |
768 KB |
Output is correct |
| 4 |
Correct |
6 ms |
768 KB |
Output is correct |
| 5 |
Correct |
1 ms |
384 KB |
Output is correct |
| 6 |
Correct |
1 ms |
384 KB |
Output is correct |
| 7 |
Correct |
3 ms |
640 KB |
Output is correct |
| 8 |
Correct |
1 ms |
384 KB |
Output is correct |
| 9 |
Correct |
5 ms |
768 KB |
Output is correct |
| 10 |
Correct |
5 ms |
768 KB |
Output is correct |
| 11 |
Correct |
0 ms |
384 KB |
Output is correct |
| 12 |
Correct |
1 ms |
384 KB |
Output is correct |
| 13 |
Correct |
0 ms |
384 KB |
Output is correct |
| 14 |
Correct |
4 ms |
640 KB |
Output is correct |
| 15 |
Correct |
5 ms |
768 KB |
Output is correct |
| 16 |
Correct |
5 ms |
544 KB |
Output is correct |
| 17 |
Correct |
5 ms |
768 KB |
Output is correct |
| 18 |
Correct |
5 ms |
768 KB |
Output is correct |
| 19 |
Correct |
4 ms |
768 KB |
Output is correct |
| 20 |
Correct |
5 ms |
768 KB |
Output is correct |
| 21 |
Correct |
1 ms |
384 KB |
Output is correct |
| 22 |
Correct |
1 ms |
384 KB |
Output is correct |
| 23 |
Correct |
5 ms |
768 KB |
Output is correct |
| 24 |
Correct |
5 ms |
768 KB |
Output is correct |
| 25 |
Correct |
3 ms |
512 KB |
Output is correct |
| 26 |
Correct |
4 ms |
768 KB |
Output is correct |
| 27 |
Correct |
4 ms |
768 KB |
Output is correct |
| 28 |
Correct |
226 ms |
16632 KB |
Output is correct |
| 29 |
Correct |
515 ms |
18424 KB |
Output is correct |
| 30 |
Correct |
468 ms |
18432 KB |
Output is correct |
| 31 |
Correct |
479 ms |
18424 KB |
Output is correct |
| 32 |
Correct |
196 ms |
17088 KB |
Output is correct |
| 33 |
Correct |
218 ms |
17656 KB |
Output is correct |
| 34 |
Correct |
46 ms |
3832 KB |
Output is correct |
| 35 |
Correct |
45 ms |
3832 KB |
Output is correct |
| 36 |
Correct |
174 ms |
10104 KB |
Output is correct |
| 37 |
Correct |
36 ms |
3192 KB |
Output is correct |
| 38 |
Correct |
214 ms |
17528 KB |
Output is correct |
| 39 |
Correct |
211 ms |
17400 KB |
Output is correct |
| 40 |
Correct |
1 ms |
384 KB |
Output is correct |
| 41 |
Correct |
1 ms |
384 KB |
Output is correct |
| 42 |
Correct |
1 ms |
384 KB |
Output is correct |
| 43 |
Correct |
1 ms |
384 KB |
Output is correct |
| 44 |
Correct |
1 ms |
384 KB |
Output is correct |
| 45 |
Correct |
1 ms |
384 KB |
Output is correct |
| 46 |
Correct |
1 ms |
384 KB |
Output is correct |
| 47 |
Correct |
1 ms |
384 KB |
Output is correct |
| 48 |
Correct |
1 ms |
384 KB |
Output is correct |
| 49 |
Correct |
1 ms |
384 KB |
Output is correct |
| 50 |
Correct |
0 ms |
384 KB |
Output is correct |
| 51 |
Correct |
1 ms |
416 KB |
Output is correct |
| 52 |
Correct |
1 ms |
384 KB |
Output is correct |
| 53 |
Correct |
0 ms |
384 KB |
Output is correct |
| 54 |
Correct |
0 ms |
384 KB |
Output is correct |
| 55 |
Correct |
1 ms |
384 KB |
Output is correct |
