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Submission #470086

# Submission time Handle Problem Language Result Execution time Memory
470086 2021-09-02T23:10:11 Z peuch Safety (NOI18_safety) C++17
100 / 100
 280 ms 20996 KB 
#include<bits/stdc++.h>
using namespace std;

const int MAXN = 2e5 + 10;

int n;
long long h;
long long ans;

multiset<long long> s1, s2;

int main(){
	scanf("%d %lld", &n, &h);
	long long id;
	scanf("%lld", &id);
	long long s1S = 0, s2S = 0;
	s1.insert(id);
	s2.insert(id);
	for(int i = 2; i <= n; i++){
		scanf("%lld", &id);
		s1S -= h;
		s2S += h;
		
		multiset<long long> :: iterator it = s1.end();
		it--;
		long long a = *it;
		long long b = *s2.begin();
		a += s1S;
		b += s2S;
		
		if(id < a) {
			ans += a - id;
			s1.insert(id - s1S);
			s1.insert(id - s1S);
		}
		else if(id > b) {
			ans += id - b;
			s2.insert(id - s2S);
			s2.insert(id - s2S);
		}
		else{
			ans += 0;
			s1.insert(id - s1S);
			s2.insert(id - s2S);
		}
		
		
		it = s1.end();
		it--;
		a = *it;
		b = *s2.begin();
		a += s1S;
		b += s2S;
		if(s1.size() > s2.size()){
			s2.insert(a - s2S);
			s1.erase(it);
		}
		else if(s2.size() > s1.size()){ 
			s1.insert(b - s1S);
			s2.erase(s2.begin());
		}
		
	}
	printf("%lld\n", ans);
}

Compilation message

safety.cpp: In function 'int main()':
safety.cpp:13:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |  scanf("%d %lld", &n, &h);
      |  ~~~~~^~~~~~~~~~~~~~~~~~~
safety.cpp:15:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |  scanf("%lld", &id);
      |  ~~~~~^~~~~~~~~~~~~
safety.cpp:20:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   20 |   scanf("%lld", &id);
      |   ~~~~~^~~~~~~~~~~~~

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct

Subtask #2
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 140 ms 13568 KB Output is correct
2 Correct 280 ms 19752 KB Output is correct
3 Correct 229 ms 20484 KB Output is correct

Subtask #5
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 332 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 296 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct

Subtask #7
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 296 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 5 ms 716 KB Output is correct
29 Correct 3 ms 588 KB Output is correct
30 Correct 3 ms 716 KB Output is correct
31 Correct 2 ms 588 KB Output is correct
32 Correct 3 ms 588 KB Output is correct
33 Correct 3 ms 716 KB Output is correct
34 Correct 3 ms 716 KB Output is correct

Subtask #8
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 0 ms 204 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 296 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 1 ms 204 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 5 ms 716 KB Output is correct
35 Correct 3 ms 588 KB Output is correct
36 Correct 3 ms 716 KB Output is correct
37 Correct 2 ms 588 KB Output is correct
38 Correct 3 ms 588 KB Output is correct
39 Correct 3 ms 716 KB Output is correct
40 Correct 3 ms 716 KB Output is correct
41 Correct 5 ms 716 KB Output is correct
42 Correct 3 ms 588 KB Output is correct
43 Correct 3 ms 716 KB Output is correct
44 Correct 4 ms 716 KB Output is correct
45 Correct 3 ms 692 KB Output is correct
46 Correct 3 ms 716 KB Output is correct

Subtask #9
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 0 ms 204 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 140 ms 13568 KB Output is correct
20 Correct 280 ms 19752 KB Output is correct
21 Correct 229 ms 20484 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Correct 1 ms 332 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 1 ms 296 KB Output is correct
32 Correct 1 ms 204 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 1 ms 332 KB Output is correct
37 Correct 5 ms 716 KB Output is correct
38 Correct 3 ms 588 KB Output is correct
39 Correct 3 ms 716 KB Output is correct
40 Correct 2 ms 588 KB Output is correct
41 Correct 3 ms 588 KB Output is correct
42 Correct 3 ms 716 KB Output is correct
43 Correct 3 ms 716 KB Output is correct
44 Correct 5 ms 716 KB Output is correct
45 Correct 3 ms 588 KB Output is correct
46 Correct 3 ms 716 KB Output is correct
47 Correct 4 ms 716 KB Output is correct
48 Correct 3 ms 692 KB Output is correct
49 Correct 3 ms 716 KB Output is correct
50 Correct 250 ms 20996 KB Output is correct
51 Correct 196 ms 17388 KB Output is correct
52 Correct 110 ms 16692 KB Output is correct
53 Correct 128 ms 19396 KB Output is correct
54 Correct 147 ms 20032 KB Output is correct
55 Correct 109 ms 17000 KB Output is correct
56 Correct 121 ms 18640 KB Output is correct
57 Correct 117 ms 17088 KB Output is correct
58 Correct 136 ms 14352 KB Output is correct
59 Correct 140 ms 18980 KB Output is correct