Submission #977459

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
977459	2024-05-08T02:37:49 Z	shoryu386	Money (IZhO17_money)	C++17	100 / 100	156 ms	21728 KB

money

#include <bits/stdc++.h>
using namespace std;

#define int long long

#define MX 1000007
int fwt[MX+1];
#define lsb(x) (x&(-x))

void update(int x, int k){
	x++;
	
	for (; x < MX; x += lsb(x)){
		fwt[x] += k;
	}
}

int sum(int x){
	x++;
	
	int res = 0;
	for (; x != 0; x -= lsb(x)){
		res += fwt[x];
	}
	
	return res;
}

int query(int a, int b){
	if (b < a) return 0;
	return sum(b) - sum(a-1);
}

main(){ ios_base::sync_with_stdio(0); cin.tie(0);
	
	int n; cin >> n;
	//attempt greedy
	
	int arr[n]; for (int x = 0; x < n; x++) cin >> arr[x];
	
	bitset<1000007> taken;
	int ans = 0;
	for (int zzz = 0; zzz < n; zzz++){
		if (taken[zzz]){
			continue;
		}
		
		ans++;
		
		taken[zzz] = 1;
		vector<int> items; items.push_back(arr[zzz]);
		
		for (int y = zzz+1; y < n; y++){
			if (items.back() <= arr[y] && query(arr[zzz]+1, arr[y]-1) == 0){
				taken[y] = 1;
				items.push_back(arr[y]);
			}
			else{
				break;
			}
		}
		
		for (auto y : items){
			update(y, 1);
		}
		
	}
	
	cout << ans;
	
	
}

Compilation message

money.cpp:34:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   34 | main(){ ios_base::sync_with_stdio(0); cin.tie(0);
      | ^~~~

Subtask #1
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	4700 KB	Output is correct
2	Correct	2 ms	4700 KB	Output is correct
3	Correct	1 ms	4952 KB	Output is correct
4	Correct	1 ms	4700 KB	Output is correct
5	Correct	1 ms	4700 KB	Output is correct
6	Correct	1 ms	4700 KB	Output is correct
7	Correct	1 ms	2652 KB	Output is correct
8	Correct	0 ms	604 KB	Output is correct
9	Correct	0 ms	600 KB	Output is correct
10	Correct	1 ms	4444 KB	Output is correct
11	Correct	1 ms	2652 KB	Output is correct
12	Correct	1 ms	4444 KB	Output is correct
13	Correct	1 ms	2652 KB	Output is correct
14	Correct	0 ms	604 KB	Output is correct
15	Correct	0 ms	604 KB	Output is correct
16	Correct	1 ms	2848 KB	Output is correct

Subtask #2
16.0 / 16.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	4700 KB	Output is correct
2	Correct	2 ms	4700 KB	Output is correct
3	Correct	1 ms	4952 KB	Output is correct
4	Correct	1 ms	4700 KB	Output is correct
5	Correct	1 ms	4700 KB	Output is correct
6	Correct	1 ms	4700 KB	Output is correct
7	Correct	1 ms	2652 KB	Output is correct
8	Correct	0 ms	604 KB	Output is correct
9	Correct	0 ms	600 KB	Output is correct
10	Correct	1 ms	4444 KB	Output is correct
11	Correct	1 ms	2652 KB	Output is correct
12	Correct	1 ms	4444 KB	Output is correct
13	Correct	1 ms	2652 KB	Output is correct
14	Correct	0 ms	604 KB	Output is correct
15	Correct	0 ms	604 KB	Output is correct
16	Correct	1 ms	2848 KB	Output is correct
17	Correct	0 ms	600 KB	Output is correct
18	Correct	1 ms	604 KB	Output is correct
19	Correct	0 ms	604 KB	Output is correct
20	Correct	1 ms	4700 KB	Output is correct
21	Correct	0 ms	604 KB	Output is correct
22	Correct	0 ms	604 KB	Output is correct
23	Correct	1 ms	2652 KB	Output is correct
24	Correct	1 ms	4444 KB	Output is correct
25	Correct	0 ms	600 KB	Output is correct
26	Correct	0 ms	860 KB	Output is correct

Subtask #3
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	4700 KB	Output is correct
2	Correct	2 ms	4700 KB	Output is correct
3	Correct	1 ms	4952 KB	Output is correct
4	Correct	1 ms	4700 KB	Output is correct
5	Correct	1 ms	4700 KB	Output is correct
6	Correct	1 ms	4700 KB	Output is correct
7	Correct	1 ms	2652 KB	Output is correct
8	Correct	0 ms	604 KB	Output is correct
9	Correct	0 ms	600 KB	Output is correct
10	Correct	1 ms	4444 KB	Output is correct
11	Correct	1 ms	2652 KB	Output is correct
12	Correct	1 ms	4444 KB	Output is correct
13	Correct	1 ms	2652 KB	Output is correct
14	Correct	0 ms	604 KB	Output is correct
15	Correct	0 ms	604 KB	Output is correct
16	Correct	1 ms	2848 KB	Output is correct
17	Correct	0 ms	600 KB	Output is correct
18	Correct	1 ms	604 KB	Output is correct
19	Correct	0 ms	604 KB	Output is correct
20	Correct	1 ms	4700 KB	Output is correct
21	Correct	0 ms	604 KB	Output is correct
22	Correct	0 ms	604 KB	Output is correct
23	Correct	1 ms	2652 KB	Output is correct
24	Correct	1 ms	4444 KB	Output is correct
25	Correct	0 ms	600 KB	Output is correct
26	Correct	0 ms	860 KB	Output is correct
27	Correct	1 ms	4696 KB	Output is correct
28	Correct	1 ms	4700 KB	Output is correct
29	Correct	1 ms	4700 KB	Output is correct
30	Correct	1 ms	4700 KB	Output is correct
31	Correct	1 ms	4700 KB	Output is correct
32	Correct	0 ms	604 KB	Output is correct
33	Correct	1 ms	600 KB	Output is correct
34	Correct	0 ms	604 KB	Output is correct
35	Correct	1 ms	604 KB	Output is correct
36	Correct	0 ms	604 KB	Output is correct
37	Correct	1 ms	3932 KB	Output is correct
38	Correct	1 ms	3932 KB	Output is correct

Subtask #4
55.0 / 55.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	4700 KB	Output is correct
2	Correct	2 ms	4700 KB	Output is correct
3	Correct	1 ms	4952 KB	Output is correct
4	Correct	1 ms	4700 KB	Output is correct
5	Correct	1 ms	4700 KB	Output is correct
6	Correct	1 ms	4700 KB	Output is correct
7	Correct	1 ms	2652 KB	Output is correct
8	Correct	0 ms	604 KB	Output is correct
9	Correct	0 ms	600 KB	Output is correct
10	Correct	1 ms	4444 KB	Output is correct
11	Correct	1 ms	2652 KB	Output is correct
12	Correct	1 ms	4444 KB	Output is correct
13	Correct	1 ms	2652 KB	Output is correct
14	Correct	0 ms	604 KB	Output is correct
15	Correct	0 ms	604 KB	Output is correct
16	Correct	1 ms	2848 KB	Output is correct
17	Correct	0 ms	600 KB	Output is correct
18	Correct	1 ms	604 KB	Output is correct
19	Correct	0 ms	604 KB	Output is correct
20	Correct	1 ms	4700 KB	Output is correct
21	Correct	0 ms	604 KB	Output is correct
22	Correct	0 ms	604 KB	Output is correct
23	Correct	1 ms	2652 KB	Output is correct
24	Correct	1 ms	4444 KB	Output is correct
25	Correct	0 ms	600 KB	Output is correct
26	Correct	0 ms	860 KB	Output is correct
27	Correct	1 ms	4696 KB	Output is correct
28	Correct	1 ms	4700 KB	Output is correct
29	Correct	1 ms	4700 KB	Output is correct
30	Correct	1 ms	4700 KB	Output is correct
31	Correct	1 ms	4700 KB	Output is correct
32	Correct	0 ms	604 KB	Output is correct
33	Correct	1 ms	600 KB	Output is correct
34	Correct	0 ms	604 KB	Output is correct
35	Correct	1 ms	604 KB	Output is correct
36	Correct	0 ms	604 KB	Output is correct
37	Correct	1 ms	3932 KB	Output is correct
38	Correct	1 ms	3932 KB	Output is correct
39	Correct	58 ms	6228 KB	Output is correct
40	Correct	90 ms	15192 KB	Output is correct
41	Correct	44 ms	10056 KB	Output is correct
42	Correct	41 ms	5832 KB	Output is correct
43	Correct	28 ms	4188 KB	Output is correct
44	Correct	113 ms	13892 KB	Output is correct
45	Correct	112 ms	13664 KB	Output is correct
46	Correct	116 ms	13908 KB	Output is correct
47	Correct	105 ms	13576 KB	Output is correct
48	Correct	111 ms	15868 KB	Output is correct
49	Correct	120 ms	21336 KB	Output is correct
50	Correct	126 ms	21520 KB	Output is correct
51	Correct	122 ms	21588 KB	Output is correct
52	Correct	128 ms	21332 KB	Output is correct
53	Correct	120 ms	21412 KB	Output is correct
54	Correct	129 ms	21360 KB	Output is correct
55	Correct	134 ms	21420 KB	Output is correct
56	Correct	129 ms	21468 KB	Output is correct
57	Correct	156 ms	21728 KB	Output is correct
58	Correct	127 ms	21576 KB	Output is correct
59	Correct	129 ms	21580 KB	Output is correct
60	Correct	130 ms	21416 KB	Output is correct
61	Correct	129 ms	21508 KB	Output is correct
62	Correct	130 ms	21584 KB	Output is correct

Submission #977459

Compilation message

Subtask #1 9.0 / 9.0

Subtask #2 16.0 / 16.0

Subtask #3 20.0 / 20.0

Subtask #4 55.0 / 55.0

Subtask #1
9.0 / 9.0

Subtask #2
16.0 / 16.0

Subtask #3
20.0 / 20.0

Subtask #4
55.0 / 55.0