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Submission #425458

# Submission time Handle Problem Language Result Execution time Memory
425458 2021-06-13T04:03:38 Z errorgorn Safety (NOI18_safety) C++17
100 / 100
 41 ms 5452 KB 
#include <cstdio>
#include <queue>
using namespace std;
int n;
long long h;
long long t;
priority_queue<long long> lower;
priority_queue<long long,vector<long long>,greater<long long> > upper;
inline void read(int& x) {
    x = 0;
    char ch = getchar_unlocked();
    while (ch&16){ //this will break when ‘\n’ or ‘ ‘ is encountered
		x = (x << 3) + (x << 1) + (ch&15);
		ch = getchar_unlocked();
	}
}
inline void read(long long& x) {
    x = 0;
    char ch = getchar_unlocked();
    while (ch&16){ //this will break when ‘\n’ or ‘ ‘ is encountered
		x = (x << 3) + (x << 1) + (ch&15);
		ch = getchar_unlocked();
	}
}
int main(){
    read(n),read(h);
    read(t);
    lower.push(t);
    upper.push(t);
    long long ans=0;
    long long offset;
    for (int x=1;x<n;x++){
        offset=x*h;
        read(t);
        if (!lower.empty() && t<lower.top()-offset){ ///lower part
            ans+=(lower.top()-offset)-t;
            lower.push(t+offset);
            lower.push(t+offset);
            upper.push(lower.top()-offset*2);
            lower.pop();
        }
        else if (!upper.empty() && upper.top()+offset<t){ ///upper part
            ans+=t-(upper.top()+offset);
            upper.push(t-offset);
            upper.push(t-offset);
            lower.push(upper.top()+offset*2);
            upper.pop();
        }
        else{
            lower.push(t+offset);
            upper.push(t-offset);
        }
        //printf("%lld %lld %lld\n",ans,lower.top()-offset,upper.top()+offset);
    }
    printf("%lld\n",ans);
}

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 280 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 280 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 1 ms 280 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 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 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 1 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 26 ms 4668 KB Output is correct
2 Correct 38 ms 5080 KB Output is correct
3 Correct 41 ms 5292 KB Output is correct

Subtask #5
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 280 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 280 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 1 ms 280 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 0 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 1 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 1 ms 204 KB Output is correct
19 Correct 1 ms 280 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 280 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 280 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 1 ms 280 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 0 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 1 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 1 ms 204 KB Output is correct
19 Correct 1 ms 280 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 1 ms 204 KB Output is correct

Subtask #7
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 280 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 280 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 1 ms 280 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 0 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 1 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 1 ms 204 KB Output is correct
19 Correct 1 ms 280 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 1 ms 204 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 460 KB Output is correct
30 Correct 2 ms 460 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 1 ms 460 KB Output is correct
34 Correct 1 ms 460 KB Output is correct

Subtask #8
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 280 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 280 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 1 ms 280 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 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 0 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 0 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 0 ms 204 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 1 ms 280 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Correct 1 ms 204 KB Output is correct
31 Correct 1 ms 204 KB Output is correct
32 Correct 1 ms 204 KB Output is correct
33 Correct 1 ms 204 KB Output is correct
34 Correct 1 ms 332 KB Output is correct
35 Correct 1 ms 460 KB Output is correct
36 Correct 2 ms 460 KB Output is correct
37 Correct 1 ms 332 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 460 KB Output is correct
40 Correct 1 ms 460 KB Output is correct
41 Correct 2 ms 460 KB Output is correct
42 Correct 1 ms 332 KB Output is correct
43 Correct 1 ms 460 KB Output is correct
44 Correct 1 ms 460 KB Output is correct
45 Correct 1 ms 460 KB Output is correct
46 Correct 2 ms 460 KB Output is correct

Subtask #9
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 280 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 280 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 1 ms 280 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 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 26 ms 4668 KB Output is correct
20 Correct 38 ms 5080 KB Output is correct
21 Correct 41 ms 5292 KB Output is correct
22 Correct 0 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 0 ms 204 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 0 ms 204 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Correct 1 ms 280 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Correct 1 ms 204 KB Output is correct
31 Correct 1 ms 204 KB Output is correct
32 Correct 1 ms 204 KB Output is correct
33 Correct 1 ms 204 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 1 ms 204 KB Output is correct
36 Correct 1 ms 204 KB Output is correct
37 Correct 1 ms 332 KB Output is correct
38 Correct 1 ms 460 KB Output is correct
39 Correct 2 ms 460 KB Output is correct
40 Correct 1 ms 332 KB Output is correct
41 Correct 1 ms 332 KB Output is correct
42 Correct 1 ms 460 KB Output is correct
43 Correct 1 ms 460 KB Output is correct
44 Correct 2 ms 460 KB Output is correct
45 Correct 1 ms 332 KB Output is correct
46 Correct 1 ms 460 KB Output is correct
47 Correct 1 ms 460 KB Output is correct
48 Correct 1 ms 460 KB Output is correct
49 Correct 2 ms 460 KB Output is correct
50 Correct 39 ms 5452 KB Output is correct
51 Correct 34 ms 4920 KB Output is correct
52 Correct 20 ms 5020 KB Output is correct
53 Correct 27 ms 5116 KB Output is correct
54 Correct 37 ms 5124 KB Output is correct
55 Correct 21 ms 5012 KB Output is correct
56 Correct 23 ms 5024 KB Output is correct
57 Correct 21 ms 5040 KB Output is correct
58 Correct 21 ms 4496 KB Output is correct
59 Correct 27 ms 4992 KB Output is correct