#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
#define X first
#define Y second
#define SZ(a) ((int)a.size())
#define ALL(v) v.begin(), v.end()
#define pb push_back
int arr[250005], dp[250005];
int main() {
ios::sync_with_stdio(0), cin.tie(0);
int n;
cin >> n;
for (int i = 1; i <= n; ++i)
cin >> arr[i];
int q;
cin >> q;
for (int i = 1; i <= q; ++i) {
int x, y, a, b;
cin >> x >> y >> a >> b;
arr[x] = y;
int ans = 1;
ll cur = 0, sum = 0;
for (int j = a + 1; j <= b; ++j) sum += arr[j];
for (int j = a + 1; j <= b; ++j) {
dp[j] = -n;
if (j == a + 1) dp[j] = 1;
if (cur > arr[j]) dp[j] = 2;
ll nw = 0;
for (int k = j - 1; k > a; --k) {
if (nw > arr[k] && nw > arr[j]) dp[j] = max(dp[j], dp[k] + 2);
nw += arr[k];
}
cur += arr[j];
if (sum - cur > arr[j]) ans = max(ans, dp[j] + 1);
if (j == b) ans = max(ans, dp[j]);
}
cout << ans << "\n";
}
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
332 KB |
Output is correct |
5 |
Correct |
1 ms |
280 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
328 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
328 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
328 KB |
Output is correct |
16 |
Correct |
1 ms |
212 KB |
Output is correct |
17 |
Correct |
1 ms |
328 KB |
Output is correct |
18 |
Correct |
1 ms |
212 KB |
Output is correct |
19 |
Correct |
1 ms |
212 KB |
Output is correct |
20 |
Correct |
1 ms |
212 KB |
Output is correct |
21 |
Correct |
1 ms |
332 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
332 KB |
Output is correct |
5 |
Correct |
1 ms |
280 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
328 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
328 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
328 KB |
Output is correct |
16 |
Correct |
1 ms |
212 KB |
Output is correct |
17 |
Correct |
1 ms |
328 KB |
Output is correct |
18 |
Correct |
1 ms |
212 KB |
Output is correct |
19 |
Correct |
1 ms |
212 KB |
Output is correct |
20 |
Correct |
1 ms |
212 KB |
Output is correct |
21 |
Correct |
1 ms |
332 KB |
Output is correct |
22 |
Correct |
1 ms |
340 KB |
Output is correct |
23 |
Correct |
1 ms |
340 KB |
Output is correct |
24 |
Correct |
1 ms |
340 KB |
Output is correct |
25 |
Correct |
3 ms |
340 KB |
Output is correct |
26 |
Correct |
18 ms |
340 KB |
Output is correct |
27 |
Correct |
13 ms |
340 KB |
Output is correct |
28 |
Correct |
18 ms |
360 KB |
Output is correct |
29 |
Correct |
15 ms |
340 KB |
Output is correct |
30 |
Correct |
11 ms |
340 KB |
Output is correct |
31 |
Correct |
12 ms |
340 KB |
Output is correct |
32 |
Correct |
9 ms |
340 KB |
Output is correct |
33 |
Correct |
9 ms |
352 KB |
Output is correct |
34 |
Correct |
12 ms |
340 KB |
Output is correct |
35 |
Correct |
14 ms |
340 KB |
Output is correct |
36 |
Correct |
7 ms |
336 KB |
Output is correct |
37 |
Correct |
17 ms |
340 KB |
Output is correct |
38 |
Correct |
6 ms |
360 KB |
Output is correct |
39 |
Correct |
1 ms |
340 KB |
Output is correct |
40 |
Correct |
2 ms |
340 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
332 KB |
Output is correct |
5 |
Correct |
1 ms |
280 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
328 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
328 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
328 KB |
Output is correct |
16 |
Correct |
1 ms |
212 KB |
Output is correct |
17 |
Correct |
1 ms |
328 KB |
Output is correct |
18 |
Correct |
1 ms |
212 KB |
Output is correct |
19 |
Correct |
1 ms |
212 KB |
Output is correct |
20 |
Correct |
1 ms |
212 KB |
Output is correct |
21 |
Correct |
1 ms |
332 KB |
Output is correct |
22 |
Correct |
1 ms |
340 KB |
Output is correct |
23 |
Correct |
1 ms |
340 KB |
Output is correct |
24 |
Correct |
1 ms |
340 KB |
Output is correct |
25 |
Correct |
3 ms |
340 KB |
Output is correct |
26 |
Correct |
18 ms |
340 KB |
Output is correct |
27 |
Correct |
13 ms |
340 KB |
Output is correct |
28 |
Correct |
18 ms |
360 KB |
Output is correct |
29 |
Correct |
15 ms |
340 KB |
Output is correct |
30 |
Correct |
11 ms |
340 KB |
Output is correct |
31 |
Correct |
12 ms |
340 KB |
Output is correct |
32 |
Correct |
9 ms |
340 KB |
Output is correct |
33 |
Correct |
9 ms |
352 KB |
Output is correct |
34 |
Correct |
12 ms |
340 KB |
Output is correct |
35 |
Correct |
14 ms |
340 KB |
Output is correct |
36 |
Correct |
7 ms |
336 KB |
Output is correct |
37 |
Correct |
17 ms |
340 KB |
Output is correct |
38 |
Correct |
6 ms |
360 KB |
Output is correct |
39 |
Correct |
1 ms |
340 KB |
Output is correct |
40 |
Correct |
2 ms |
340 KB |
Output is correct |
41 |
Correct |
23 ms |
3152 KB |
Output is correct |
42 |
Correct |
25 ms |
3380 KB |
Output is correct |
43 |
Correct |
99 ms |
3324 KB |
Output is correct |
44 |
Correct |
589 ms |
2884 KB |
Output is correct |
45 |
Execution timed out |
4059 ms |
3944 KB |
Time limit exceeded |
46 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
300 ms |
4096 KB |
Output is correct |
3 |
Execution timed out |
4035 ms |
5456 KB |
Time limit exceeded |
4 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
274 ms |
4268 KB |
Output is correct |
4 |
Execution timed out |
4037 ms |
4424 KB |
Time limit exceeded |
5 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
332 KB |
Output is correct |
5 |
Correct |
1 ms |
280 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
328 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
328 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
328 KB |
Output is correct |
16 |
Correct |
1 ms |
212 KB |
Output is correct |
17 |
Correct |
1 ms |
328 KB |
Output is correct |
18 |
Correct |
1 ms |
212 KB |
Output is correct |
19 |
Correct |
1 ms |
212 KB |
Output is correct |
20 |
Correct |
1 ms |
212 KB |
Output is correct |
21 |
Correct |
1 ms |
332 KB |
Output is correct |
22 |
Correct |
1 ms |
340 KB |
Output is correct |
23 |
Correct |
1 ms |
340 KB |
Output is correct |
24 |
Correct |
1 ms |
340 KB |
Output is correct |
25 |
Correct |
3 ms |
340 KB |
Output is correct |
26 |
Correct |
18 ms |
340 KB |
Output is correct |
27 |
Correct |
13 ms |
340 KB |
Output is correct |
28 |
Correct |
18 ms |
360 KB |
Output is correct |
29 |
Correct |
15 ms |
340 KB |
Output is correct |
30 |
Correct |
11 ms |
340 KB |
Output is correct |
31 |
Correct |
12 ms |
340 KB |
Output is correct |
32 |
Correct |
9 ms |
340 KB |
Output is correct |
33 |
Correct |
9 ms |
352 KB |
Output is correct |
34 |
Correct |
12 ms |
340 KB |
Output is correct |
35 |
Correct |
14 ms |
340 KB |
Output is correct |
36 |
Correct |
7 ms |
336 KB |
Output is correct |
37 |
Correct |
17 ms |
340 KB |
Output is correct |
38 |
Correct |
6 ms |
360 KB |
Output is correct |
39 |
Correct |
1 ms |
340 KB |
Output is correct |
40 |
Correct |
2 ms |
340 KB |
Output is correct |
41 |
Correct |
23 ms |
3152 KB |
Output is correct |
42 |
Correct |
25 ms |
3380 KB |
Output is correct |
43 |
Correct |
99 ms |
3324 KB |
Output is correct |
44 |
Correct |
589 ms |
2884 KB |
Output is correct |
45 |
Execution timed out |
4059 ms |
3944 KB |
Time limit exceeded |
46 |
Halted |
0 ms |
0 KB |
- |