oj.uz

Submission #386264

# Submission time Handle Problem Language Result Execution time Memory
386264 2021-04-06T08:44:43 Z patrikpavic2 Money (IZhO17_money) C++17
100 / 100
 326 ms 17132 KB 
#include <cstdio>
#include <cstring>
#include <vector>
#include <set>
#include <algorithm>

#define X first
#define Y second
#define PB push_back

using namespace std;

const int N = 1e6 + 500;

int A[N], n, prv[N], nxt[N], sol;
int cnt[N];

void remove(int x){
	prv[nxt[x]] = prv[x];
	nxt[prv[x]] = nxt[x];
}

int main(){
	scanf("%d", &n);
	for(int i = 0;i < n;i++){
		scanf("%d", A + i);
		cnt[A[i]]++;
	}
	for(int i = 1;i < N;i++){
		prv[i] = i - 1;
		nxt[i - 1] = i;
	}
	for(int i = n - 1;i >= 0;i--){
		cnt[A[i]]--;
		while(i > 0 && A[i - 1] == A[i]){
			i--; cnt[A[i]]--;
		}
		int cur = prv[A[i]]; 
		while(!cnt[cur] && cur > 0) {
			remove(cur); cur = prv[cur];
		}
		if(i > 0 && A[i - 1] == cur){
			i--; cnt[A[i]]--;
		}
		cur = A[i];
		while(!cnt[cur] && cur > 0) {
			remove(cur); cur = prv[cur];
		}
		while(i > 0 && A[i - 1] == cur){
			i--; cnt[A[i]]--;
			while(!cnt[cur] && cur > 0) {
				remove(cur); cur = prv[cur];
			}
		}
		sol++;
	}
	printf("%d\n", sol);
}

Compilation message

money.cpp: In function 'int main()':
money.cpp:24:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   24 |  scanf("%d", &n);
      |  ~~~~~^~~~~~~~~~
money.cpp:26:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   26 |   scanf("%d", A + i);
      |   ~~~~~^~~~~~~~~~~~~

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 8172 KB Output is correct
2 Correct 6 ms 8172 KB Output is correct
3 Correct 6 ms 8172 KB Output is correct
4 Correct 6 ms 8172 KB Output is correct
5 Correct 6 ms 8172 KB Output is correct
6 Correct 6 ms 8172 KB Output is correct
7 Correct 10 ms 8172 KB Output is correct
8 Correct 12 ms 8172 KB Output is correct
9 Correct 10 ms 8172 KB Output is correct
10 Correct 10 ms 8172 KB Output is correct
11 Correct 11 ms 8172 KB Output is correct
12 Correct 10 ms 8172 KB Output is correct
13 Correct 11 ms 8172 KB Output is correct
14 Correct 10 ms 8172 KB Output is correct
15 Correct 14 ms 8172 KB Output is correct
16 Correct 11 ms 8172 KB Output is correct

Subtask #2
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 8172 KB Output is correct
2 Correct 6 ms 8172 KB Output is correct
3 Correct 6 ms 8172 KB Output is correct
4 Correct 6 ms 8172 KB Output is correct
5 Correct 6 ms 8172 KB Output is correct
6 Correct 6 ms 8172 KB Output is correct
7 Correct 10 ms 8172 KB Output is correct
8 Correct 12 ms 8172 KB Output is correct
9 Correct 10 ms 8172 KB Output is correct
10 Correct 10 ms 8172 KB Output is correct
11 Correct 11 ms 8172 KB Output is correct
12 Correct 10 ms 8172 KB Output is correct
13 Correct 11 ms 8172 KB Output is correct
14 Correct 10 ms 8172 KB Output is correct
15 Correct 14 ms 8172 KB Output is correct
16 Correct 11 ms 8172 KB Output is correct
17 Correct 12 ms 8172 KB Output is correct
18 Correct 11 ms 8172 KB Output is correct
19 Correct 11 ms 8172 KB Output is correct
20 Correct 12 ms 8172 KB Output is correct
21 Correct 10 ms 8172 KB Output is correct
22 Correct 12 ms 8300 KB Output is correct
23 Correct 11 ms 8172 KB Output is correct
24 Correct 10 ms 8172 KB Output is correct
25 Correct 11 ms 8172 KB Output is correct
26 Correct 12 ms 8172 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 8172 KB Output is correct
2 Correct 6 ms 8172 KB Output is correct
3 Correct 6 ms 8172 KB Output is correct
4 Correct 6 ms 8172 KB Output is correct
5 Correct 6 ms 8172 KB Output is correct
6 Correct 6 ms 8172 KB Output is correct
7 Correct 10 ms 8172 KB Output is correct
8 Correct 12 ms 8172 KB Output is correct
9 Correct 10 ms 8172 KB Output is correct
10 Correct 10 ms 8172 KB Output is correct
11 Correct 11 ms 8172 KB Output is correct
12 Correct 10 ms 8172 KB Output is correct
13 Correct 11 ms 8172 KB Output is correct
14 Correct 10 ms 8172 KB Output is correct
15 Correct 14 ms 8172 KB Output is correct
16 Correct 11 ms 8172 KB Output is correct
17 Correct 12 ms 8172 KB Output is correct
18 Correct 11 ms 8172 KB Output is correct
19 Correct 11 ms 8172 KB Output is correct
20 Correct 12 ms 8172 KB Output is correct
21 Correct 10 ms 8172 KB Output is correct
22 Correct 12 ms 8300 KB Output is correct
23 Correct 11 ms 8172 KB Output is correct
24 Correct 10 ms 8172 KB Output is correct
25 Correct 11 ms 8172 KB Output is correct
26 Correct 12 ms 8172 KB Output is correct
27 Correct 6 ms 8172 KB Output is correct
28 Correct 6 ms 8172 KB Output is correct
29 Correct 6 ms 8172 KB Output is correct
30 Correct 6 ms 8172 KB Output is correct
31 Correct 6 ms 8192 KB Output is correct
32 Correct 12 ms 8172 KB Output is correct
33 Correct 10 ms 8172 KB Output is correct
34 Correct 12 ms 8172 KB Output is correct
35 Correct 9 ms 8172 KB Output is correct
36 Correct 11 ms 8172 KB Output is correct
37 Correct 14 ms 8684 KB Output is correct
38 Correct 13 ms 8684 KB Output is correct

Subtask #4
55.0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 8172 KB Output is correct
2 Correct 6 ms 8172 KB Output is correct
3 Correct 6 ms 8172 KB Output is correct
4 Correct 6 ms 8172 KB Output is correct
5 Correct 6 ms 8172 KB Output is correct
6 Correct 6 ms 8172 KB Output is correct
7 Correct 10 ms 8172 KB Output is correct
8 Correct 12 ms 8172 KB Output is correct
9 Correct 10 ms 8172 KB Output is correct
10 Correct 10 ms 8172 KB Output is correct
11 Correct 11 ms 8172 KB Output is correct
12 Correct 10 ms 8172 KB Output is correct
13 Correct 11 ms 8172 KB Output is correct
14 Correct 10 ms 8172 KB Output is correct
15 Correct 14 ms 8172 KB Output is correct
16 Correct 11 ms 8172 KB Output is correct
17 Correct 12 ms 8172 KB Output is correct
18 Correct 11 ms 8172 KB Output is correct
19 Correct 11 ms 8172 KB Output is correct
20 Correct 12 ms 8172 KB Output is correct
21 Correct 10 ms 8172 KB Output is correct
22 Correct 12 ms 8300 KB Output is correct
23 Correct 11 ms 8172 KB Output is correct
24 Correct 10 ms 8172 KB Output is correct
25 Correct 11 ms 8172 KB Output is correct
26 Correct 12 ms 8172 KB Output is correct
27 Correct 6 ms 8172 KB Output is correct
28 Correct 6 ms 8172 KB Output is correct
29 Correct 6 ms 8172 KB Output is correct
30 Correct 6 ms 8172 KB Output is correct
31 Correct 6 ms 8192 KB Output is correct
32 Correct 12 ms 8172 KB Output is correct
33 Correct 10 ms 8172 KB Output is correct
34 Correct 12 ms 8172 KB Output is correct
35 Correct 9 ms 8172 KB Output is correct
36 Correct 11 ms 8172 KB Output is correct
37 Correct 14 ms 8684 KB Output is correct
38 Correct 13 ms 8684 KB Output is correct
39 Correct 77 ms 10104 KB Output is correct
40 Correct 113 ms 11260 KB Output is correct
41 Correct 63 ms 9728 KB Output is correct
42 Correct 57 ms 9708 KB Output is correct
43 Correct 43 ms 9196 KB Output is correct
44 Correct 145 ms 12268 KB Output is correct
45 Correct 143 ms 12096 KB Output is correct
46 Correct 147 ms 12140 KB Output is correct
47 Correct 140 ms 12012 KB Output is correct
48 Correct 146 ms 12100 KB Output is correct
49 Correct 232 ms 16016 KB Output is correct
50 Correct 225 ms 16928 KB Output is correct
51 Correct 253 ms 17004 KB Output is correct
52 Correct 224 ms 16876 KB Output is correct
53 Correct 232 ms 17004 KB Output is correct
54 Correct 281 ms 17132 KB Output is correct
55 Correct 274 ms 17004 KB Output is correct
56 Correct 278 ms 17004 KB Output is correct
57 Correct 269 ms 16876 KB Output is correct
58 Correct 326 ms 16860 KB Output is correct
59 Correct 264 ms 16876 KB Output is correct
60 Correct 268 ms 16876 KB Output is correct
61 Correct 281 ms 16932 KB Output is correct
62 Correct 274 ms 16876 KB Output is correct