oj.uz

Submission #708149

# Submission time Handle Problem Language Result Execution time Memory
708149 2023-03-11T06:26:08 Z arcane Bigger segments (IZhO19_segments) C++17
100 / 100
 303 ms 48176 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define mp make_pair
#define se second
int32_t main(){
	ios::sync_with_stdio(false);
	cin.tie(0); cout.tie(0);
	int n, ans = 0, tmp1 = -1e8, tot, pos; cin >> n;
	int arr[n], smol[n], pref[n + 1]; 
	for (int i = 0; i < n; i++) cin >> arr[i];
	pref[0] = 0;
	set <pair <int, int> > s;
	for (int i = 0; i < n; i++) pref[i + 1] = pref[i] + arr[i];
	for (int i = 0; i < n; i++){
		smol[i] = pref[i + 1];
		auto it = s.upper_bound(mp(pref[i + 1], (int)1e18));
		if (it != s.begin()){
			it--;
			smol[i] = min(smol[i], pref[i + 1] + (*it).se);
		}
		s.insert(mp(smol[i] + pref[i + 1], -pref[i + 1]));
		while ((*(s.rbegin())).se != -pref[i + 1]) s.erase(--s.end());
	}
	tot = pref[n] - smol[n - 1]; pos = n - 1; ans = 1;
	while (tot){
		while (pref[pos + 1] != tot){
			pos--;
		}
		tot -= smol[pos]; ans += 1; 
	}
	cout << ans << '\n';
}

Compilation message

segments.cpp: In function 'int32_t main()':
segments.cpp:9:18: warning: unused variable 'tmp1' [-Wunused-variable]
    9 |  int n, ans = 0, tmp1 = -1e8, tot, pos; cin >> n;
      |                  ^~~~

Subtask #1
13.0 / 13.0

# 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 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 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 0 ms 212 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 212 KB Output is correct

Subtask #2
14.0 / 14.0

# 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 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 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 0 ms 212 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 212 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 324 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 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 320 KB Output is correct
25 Correct 1 ms 324 KB Output is correct
26 Correct 1 ms 324 KB Output is correct
27 Correct 1 ms 320 KB Output is correct
28 Correct 1 ms 324 KB Output is correct
29 Correct 1 ms 324 KB Output is correct
30 Correct 1 ms 340 KB Output is correct

Subtask #3
10.0 / 10.0

# 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 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 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 0 ms 212 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 212 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 324 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 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 320 KB Output is correct
25 Correct 1 ms 324 KB Output is correct
26 Correct 1 ms 324 KB Output is correct
27 Correct 1 ms 320 KB Output is correct
28 Correct 1 ms 324 KB Output is correct
29 Correct 1 ms 324 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 468 KB Output is correct
32 Correct 1 ms 460 KB Output is correct
33 Correct 1 ms 336 KB Output is correct
34 Correct 1 ms 588 KB Output is correct
35 Correct 1 ms 588 KB Output is correct
36 Correct 1 ms 548 KB Output is correct
37 Correct 1 ms 468 KB Output is correct
38 Correct 1 ms 468 KB Output is correct
39 Correct 1 ms 468 KB Output is correct
40 Correct 2 ms 548 KB Output is correct
41 Correct 1 ms 468 KB Output is correct
42 Correct 1 ms 452 KB Output is correct
43 Correct 1 ms 468 KB Output is correct
44 Correct 2 ms 468 KB Output is correct
45 Correct 1 ms 468 KB Output is correct

Subtask #4
36.0 / 36.0

# 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 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 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 0 ms 212 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 212 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 324 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 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 320 KB Output is correct
25 Correct 1 ms 324 KB Output is correct
26 Correct 1 ms 324 KB Output is correct
27 Correct 1 ms 320 KB Output is correct
28 Correct 1 ms 324 KB Output is correct
29 Correct 1 ms 324 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 468 KB Output is correct
32 Correct 1 ms 460 KB Output is correct
33 Correct 1 ms 336 KB Output is correct
34 Correct 1 ms 588 KB Output is correct
35 Correct 1 ms 588 KB Output is correct
36 Correct 1 ms 548 KB Output is correct
37 Correct 1 ms 468 KB Output is correct
38 Correct 1 ms 468 KB Output is correct
39 Correct 1 ms 468 KB Output is correct
40 Correct 2 ms 548 KB Output is correct
41 Correct 1 ms 468 KB Output is correct
42 Correct 1 ms 452 KB Output is correct
43 Correct 1 ms 468 KB Output is correct
44 Correct 2 ms 468 KB Output is correct
45 Correct 1 ms 468 KB Output is correct
46 Correct 39 ms 9276 KB Output is correct
47 Correct 33 ms 7348 KB Output is correct
48 Correct 28 ms 3788 KB Output is correct
49 Correct 43 ms 6904 KB Output is correct
50 Correct 46 ms 9784 KB Output is correct
51 Correct 39 ms 8488 KB Output is correct
52 Correct 18 ms 4416 KB Output is correct
53 Correct 11 ms 2764 KB Output is correct
54 Correct 40 ms 7436 KB Output is correct
55 Correct 43 ms 9296 KB Output is correct
56 Correct 43 ms 9348 KB Output is correct
57 Correct 38 ms 8692 KB Output is correct
58 Correct 38 ms 8640 KB Output is correct
59 Correct 51 ms 9520 KB Output is correct
60 Correct 45 ms 9412 KB Output is correct

Subtask #5
27.0 / 27.0

# 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 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 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 0 ms 212 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 212 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 324 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 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 320 KB Output is correct
25 Correct 1 ms 324 KB Output is correct
26 Correct 1 ms 324 KB Output is correct
27 Correct 1 ms 320 KB Output is correct
28 Correct 1 ms 324 KB Output is correct
29 Correct 1 ms 324 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 468 KB Output is correct
32 Correct 1 ms 460 KB Output is correct
33 Correct 1 ms 336 KB Output is correct
34 Correct 1 ms 588 KB Output is correct
35 Correct 1 ms 588 KB Output is correct
36 Correct 1 ms 548 KB Output is correct
37 Correct 1 ms 468 KB Output is correct
38 Correct 1 ms 468 KB Output is correct
39 Correct 1 ms 468 KB Output is correct
40 Correct 2 ms 548 KB Output is correct
41 Correct 1 ms 468 KB Output is correct
42 Correct 1 ms 452 KB Output is correct
43 Correct 1 ms 468 KB Output is correct
44 Correct 2 ms 468 KB Output is correct
45 Correct 1 ms 468 KB Output is correct
46 Correct 39 ms 9276 KB Output is correct
47 Correct 33 ms 7348 KB Output is correct
48 Correct 28 ms 3788 KB Output is correct
49 Correct 43 ms 6904 KB Output is correct
50 Correct 46 ms 9784 KB Output is correct
51 Correct 39 ms 8488 KB Output is correct
52 Correct 18 ms 4416 KB Output is correct
53 Correct 11 ms 2764 KB Output is correct
54 Correct 40 ms 7436 KB Output is correct
55 Correct 43 ms 9296 KB Output is correct
56 Correct 43 ms 9348 KB Output is correct
57 Correct 38 ms 8692 KB Output is correct
58 Correct 38 ms 8640 KB Output is correct
59 Correct 51 ms 9520 KB Output is correct
60 Correct 45 ms 9412 KB Output is correct
61 Correct 217 ms 45368 KB Output is correct
62 Correct 216 ms 45260 KB Output is correct
63 Correct 176 ms 37240 KB Output is correct
64 Correct 215 ms 22772 KB Output is correct
65 Correct 253 ms 48176 KB Output is correct
66 Correct 218 ms 41764 KB Output is correct
67 Correct 176 ms 33408 KB Output is correct
68 Correct 97 ms 16756 KB Output is correct
69 Correct 188 ms 35800 KB Output is correct
70 Correct 267 ms 45612 KB Output is correct
71 Correct 259 ms 45260 KB Output is correct
72 Correct 235 ms 39412 KB Output is correct
73 Correct 242 ms 41600 KB Output is correct
74 Correct 303 ms 46592 KB Output is correct
75 Correct 261 ms 46708 KB Output is correct