답안 #36244 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
36244	2017-12-06T13:53:26 Z	touristk2000	Money (IZhO17_money)	C++14	100 / 100	556 ms	17648 KB

money

#include <bits/stdc++.h>

using namespace std;
const int MAXN = (int)1e6 + 1;
int main(){
	int n;
	scanf("%d", &n);
	vector<int> a(n);
	vector<int> cnt(MAXN);
	for (int i = 0; i < n; ++i)
	{
		scanf("%d", &a[i]);
		cnt[a[i]]++;
	}
	vector<int> pr(MAXN + 1), nxt(MAXN + 1, MAXN);
	{
		int lst = 0;
		for (int i = 1; i <= MAXN; ++i)
		{
			pr[i] = lst;
			if (cnt[i])
				nxt[lst] = i, lst = i;
		}
	}
	int ans = 0;
	for (int i = n - 1; i >= 0;)
	{
		++ans;
		int j = i;
		while (i > 0)
		{
			int p = pr[a[i]];
			if (a[i - 1] == a[i])
			{
				if (cnt[a[i]] == 1)
				{
					int l = pr[a[i]];
					int r = nxt[a[i]];
					pr[r] = l;
					nxt[l] = r;
				}
				--cnt[a[i]];
				--i;
			}
			else
			{
				if (p == a[i - 1] && (cnt[a[i]] == 1 || a[j] == a[i]))
				{
					if (cnt[a[i]] == 1)
					{
						int l = pr[a[i]];
						int r = nxt[a[i]];
						pr[r] = l;
						nxt[l] = r;
					}
					--cnt[a[i]];
					--i;
				}
				else
				{
					break;
				}
			}
		}
		if (cnt[a[i]] == 1)
		{
			int l = pr[a[i]];
			int r = nxt[a[i]];
			pr[r] = l;
			nxt[l] = r;
		}
		--cnt[a[i]];
		--i;
	}
	printf("%d\n", ans);
	return 0;
}

Compilation message

money.cpp: In function 'int main()':
money.cpp:7:17: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
                 ^
money.cpp:12:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &a[i]);
                     ^

Subtask #1
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	13740 KB	Output is correct
2	Correct	3 ms	13740 KB	Output is correct
3	Correct	3 ms	13740 KB	Output is correct
4	Correct	3 ms	13740 KB	Output is correct
5	Correct	0 ms	13740 KB	Output is correct
6	Correct	3 ms	13740 KB	Output is correct
7	Correct	3 ms	13740 KB	Output is correct
8	Correct	0 ms	13740 KB	Output is correct
9	Correct	6 ms	13740 KB	Output is correct
10	Correct	6 ms	13740 KB	Output is correct
11	Correct	0 ms	13740 KB	Output is correct
12	Correct	6 ms	13740 KB	Output is correct
13	Correct	3 ms	13740 KB	Output is correct
14	Correct	3 ms	13740 KB	Output is correct
15	Correct	0 ms	13740 KB	Output is correct
16	Correct	3 ms	13740 KB	Output is correct

Subtask #2
16.0 / 16.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	13740 KB	Output is correct
2	Correct	3 ms	13740 KB	Output is correct
3	Correct	3 ms	13740 KB	Output is correct
4	Correct	3 ms	13740 KB	Output is correct
5	Correct	0 ms	13740 KB	Output is correct
6	Correct	3 ms	13740 KB	Output is correct
7	Correct	3 ms	13740 KB	Output is correct
8	Correct	0 ms	13740 KB	Output is correct
9	Correct	6 ms	13740 KB	Output is correct
10	Correct	6 ms	13740 KB	Output is correct
11	Correct	0 ms	13740 KB	Output is correct
12	Correct	6 ms	13740 KB	Output is correct
13	Correct	3 ms	13740 KB	Output is correct
14	Correct	3 ms	13740 KB	Output is correct
15	Correct	0 ms	13740 KB	Output is correct
16	Correct	3 ms	13740 KB	Output is correct
17	Correct	13 ms	13740 KB	Output is correct
18	Correct	6 ms	13740 KB	Output is correct
19	Correct	6 ms	13740 KB	Output is correct
20	Correct	0 ms	13740 KB	Output is correct
21	Correct	3 ms	13740 KB	Output is correct
22	Correct	3 ms	13740 KB	Output is correct
23	Correct	3 ms	13740 KB	Output is correct
24	Correct	3 ms	13740 KB	Output is correct
25	Correct	3 ms	13740 KB	Output is correct
26	Correct	0 ms	13740 KB	Output is correct

Subtask #3
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	13740 KB	Output is correct
2	Correct	3 ms	13740 KB	Output is correct
3	Correct	3 ms	13740 KB	Output is correct
4	Correct	3 ms	13740 KB	Output is correct
5	Correct	0 ms	13740 KB	Output is correct
6	Correct	3 ms	13740 KB	Output is correct
7	Correct	3 ms	13740 KB	Output is correct
8	Correct	0 ms	13740 KB	Output is correct
9	Correct	6 ms	13740 KB	Output is correct
10	Correct	6 ms	13740 KB	Output is correct
11	Correct	0 ms	13740 KB	Output is correct
12	Correct	6 ms	13740 KB	Output is correct
13	Correct	3 ms	13740 KB	Output is correct
14	Correct	3 ms	13740 KB	Output is correct
15	Correct	0 ms	13740 KB	Output is correct
16	Correct	3 ms	13740 KB	Output is correct
17	Correct	13 ms	13740 KB	Output is correct
18	Correct	6 ms	13740 KB	Output is correct
19	Correct	6 ms	13740 KB	Output is correct
20	Correct	0 ms	13740 KB	Output is correct
21	Correct	3 ms	13740 KB	Output is correct
22	Correct	3 ms	13740 KB	Output is correct
23	Correct	3 ms	13740 KB	Output is correct
24	Correct	3 ms	13740 KB	Output is correct
25	Correct	3 ms	13740 KB	Output is correct
26	Correct	0 ms	13740 KB	Output is correct
27	Correct	3 ms	13740 KB	Output is correct
28	Correct	6 ms	13740 KB	Output is correct
29	Correct	6 ms	13740 KB	Output is correct
30	Correct	0 ms	13740 KB	Output is correct
31	Correct	9 ms	13740 KB	Output is correct
32	Correct	3 ms	13740 KB	Output is correct
33	Correct	6 ms	13740 KB	Output is correct
34	Correct	3 ms	13740 KB	Output is correct
35	Correct	0 ms	13740 KB	Output is correct
36	Correct	0 ms	13740 KB	Output is correct
37	Correct	3 ms	13740 KB	Output is correct
38	Correct	3 ms	13740 KB	Output is correct

Subtask #4
55.0 / 55.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	13740 KB	Output is correct
2	Correct	3 ms	13740 KB	Output is correct
3	Correct	3 ms	13740 KB	Output is correct
4	Correct	3 ms	13740 KB	Output is correct
5	Correct	0 ms	13740 KB	Output is correct
6	Correct	3 ms	13740 KB	Output is correct
7	Correct	3 ms	13740 KB	Output is correct
8	Correct	0 ms	13740 KB	Output is correct
9	Correct	6 ms	13740 KB	Output is correct
10	Correct	6 ms	13740 KB	Output is correct
11	Correct	0 ms	13740 KB	Output is correct
12	Correct	6 ms	13740 KB	Output is correct
13	Correct	3 ms	13740 KB	Output is correct
14	Correct	3 ms	13740 KB	Output is correct
15	Correct	0 ms	13740 KB	Output is correct
16	Correct	3 ms	13740 KB	Output is correct
17	Correct	13 ms	13740 KB	Output is correct
18	Correct	6 ms	13740 KB	Output is correct
19	Correct	6 ms	13740 KB	Output is correct
20	Correct	0 ms	13740 KB	Output is correct
21	Correct	3 ms	13740 KB	Output is correct
22	Correct	3 ms	13740 KB	Output is correct
23	Correct	3 ms	13740 KB	Output is correct
24	Correct	3 ms	13740 KB	Output is correct
25	Correct	3 ms	13740 KB	Output is correct
26	Correct	0 ms	13740 KB	Output is correct
27	Correct	3 ms	13740 KB	Output is correct
28	Correct	6 ms	13740 KB	Output is correct
29	Correct	6 ms	13740 KB	Output is correct
30	Correct	0 ms	13740 KB	Output is correct
31	Correct	9 ms	13740 KB	Output is correct
32	Correct	3 ms	13740 KB	Output is correct
33	Correct	6 ms	13740 KB	Output is correct
34	Correct	3 ms	13740 KB	Output is correct
35	Correct	0 ms	13740 KB	Output is correct
36	Correct	0 ms	13740 KB	Output is correct
37	Correct	3 ms	13740 KB	Output is correct
38	Correct	3 ms	13740 KB	Output is correct
39	Correct	76 ms	15620 KB	Output is correct
40	Correct	143 ms	16824 KB	Output is correct
41	Correct	96 ms	15260 KB	Output is correct
42	Correct	63 ms	15084 KB	Output is correct
43	Correct	49 ms	14688 KB	Output is correct
44	Correct	189 ms	17648 KB	Output is correct
45	Correct	186 ms	17648 KB	Output is correct
46	Correct	156 ms	17648 KB	Output is correct
47	Correct	169 ms	17648 KB	Output is correct
48	Correct	236 ms	17648 KB	Output is correct
49	Correct	326 ms	17648 KB	Output is correct
50	Correct	299 ms	17648 KB	Output is correct
51	Correct	366 ms	17648 KB	Output is correct
52	Correct	413 ms	17648 KB	Output is correct
53	Correct	349 ms	17648 KB	Output is correct
54	Correct	366 ms	17648 KB	Output is correct
55	Correct	466 ms	17648 KB	Output is correct
56	Correct	449 ms	17648 KB	Output is correct
57	Correct	496 ms	17648 KB	Output is correct
58	Correct	456 ms	17648 KB	Output is correct
59	Correct	459 ms	17648 KB	Output is correct
60	Correct	536 ms	17648 KB	Output is correct
61	Correct	556 ms	17648 KB	Output is correct
62	Correct	529 ms	17648 KB	Output is correct

답안 #36244

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