Submission #519867

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
519867	2022-01-27T12:59:48 Z	naal	Jakarta Skyscrapers (APIO15_skyscraper)	C++14	57 / 100	11 ms	1740 KB

skyscraper

// https://oj.uz/problem/view/APIO15_skyscraper
#include <bits/stdc++.h>
using namespace std;
 
#define Fname ((string) "io")
#define ii pair <int, int>
#define iii pair <int, ii>
#define fi first
#define se second
#define endl '\n'
const int N = 3e3 + 5;
 
int n, m, goal;
bitset <N> d[N], used;
vector <int> a[N];
deque <iii> dq;
 
int find(int u) {
	dq.push_back({0, {u, 0}});
	while (dq.size()) {
		u = dq.front().se.fi;
		int step = dq.front().se.se, total = dq.front().fi;
		dq.pop_front();
		if (u == goal)
			return total;
		if (d[u][step])
			continue;
		d[u][step] = 1;
		if (!used[u]) {
			used[u] = 1;
			for (int &step : a[u])
				if (!d[u][step])
					dq.push_front({total, {u, step}});
		}
		if (u + step <= n && !d[u + step][step]) 
			dq.push_back({total + 1, {u + step, step}});
		if (u - step > 0 && !d[u - step][step])
			dq.push_back({total + 1, {u - step, step}});
	}
	return -1;
}
 
signed main() {
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	#ifdef lan_ngu
		freopen((Fname + ".inp").c_str(), "r", stdin);
		freopen((Fname + ".out").c_str(), "w", stdout);
	#endif
 
	// int _nt; cin >> _nt;
	int _nt = 1;
	while (_nt--) {
		cin >> n >> m;
		int init;
		for (int i = 1; i <= m; i++) {
			int b, p; cin >> b >> p;
			b++;
			a[b].push_back(p);
			if (i == 1)
				init = b;
			else if (i == 2)
				goal = b;
		}	
		cout << find(init);
	}
	return 0;
}

Compilation message

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:65:20: warning: 'init' may be used uninitialized in this function [-Wmaybe-uninitialized]
   65 |   cout << find(init);
      |                    ^

Subtask #1
10.0 / 10.0

#	Verdict	Memory	Grader output
1	Correct	332 KB	Output is correct
2	Correct	332 KB	Output is correct
3	Correct	332 KB	Output is correct
4	Correct	332 KB	Output is correct
5	Correct	332 KB	Output is correct
6	Correct	332 KB	Output is correct
7	Correct	332 KB	Output is correct

Subtask #2
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	332 KB	Output is correct
2	Correct	0 ms	332 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	0 ms	332 KB	Output is correct
5	Correct	0 ms	332 KB	Output is correct
6	Correct	0 ms	332 KB	Output is correct
7	Correct	0 ms	332 KB	Output is correct
8	Correct	0 ms	332 KB	Output is correct
9	Correct	1 ms	332 KB	Output is correct
10	Correct	1 ms	332 KB	Output is correct
11	Correct	1 ms	332 KB	Output is correct
12	Correct	1 ms	332 KB	Output is correct
13	Correct	1 ms	332 KB	Output is correct
14	Correct	1 ms	460 KB	Output is correct
15	Correct	1 ms	460 KB	Output is correct

Subtask #3
14.0 / 14.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	332 KB	Output is correct
2	Correct	0 ms	332 KB	Output is correct
3	Correct	0 ms	332 KB	Output is correct
4	Correct	0 ms	332 KB	Output is correct
5	Correct	1 ms	332 KB	Output is correct
6	Correct	0 ms	332 KB	Output is correct
7	Correct	0 ms	332 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	1 ms	332 KB	Output is correct
10	Correct	0 ms	332 KB	Output is correct
11	Correct	1 ms	332 KB	Output is correct
12	Correct	1 ms	332 KB	Output is correct
13	Correct	1 ms	332 KB	Output is correct
14	Correct	1 ms	460 KB	Output is correct
15	Correct	1 ms	460 KB	Output is correct
16	Correct	1 ms	332 KB	Output is correct
17	Correct	1 ms	588 KB	Output is correct
18	Correct	1 ms	332 KB	Output is correct
19	Correct	1 ms	332 KB	Output is correct
20	Correct	1 ms	1100 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	972 KB	Output is correct
24	Correct	1 ms	1100 KB	Output is correct
25	Correct	1 ms	972 KB	Output is correct
26	Correct	1 ms	1100 KB	Output is correct
27	Correct	2 ms	1100 KB	Output is correct
28	Correct	2 ms	1100 KB	Output is correct
29	Correct	2 ms	1100 KB	Output is correct
30	Correct	2 ms	1100 KB	Output is correct
31	Correct	1 ms	1100 KB	Output is correct
32	Correct	2 ms	1100 KB	Output is correct
33	Correct	3 ms	1100 KB	Output is correct
34	Correct	2 ms	1100 KB	Output is correct

Subtask #4
21.0 / 21.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	0 ms	332 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	0 ms	332 KB	Output is correct
5	Correct	0 ms	332 KB	Output is correct
6	Correct	0 ms	332 KB	Output is correct
7	Correct	0 ms	332 KB	Output is correct
8	Correct	0 ms	332 KB	Output is correct
9	Correct	1 ms	332 KB	Output is correct
10	Correct	1 ms	332 KB	Output is correct
11	Correct	1 ms	332 KB	Output is correct
12	Correct	1 ms	332 KB	Output is correct
13	Correct	1 ms	332 KB	Output is correct
14	Correct	1 ms	460 KB	Output is correct
15	Correct	1 ms	460 KB	Output is correct
16	Correct	1 ms	332 KB	Output is correct
17	Correct	1 ms	588 KB	Output is correct
18	Correct	1 ms	332 KB	Output is correct
19	Correct	1 ms	332 KB	Output is correct
20	Correct	2 ms	1100 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	972 KB	Output is correct
24	Correct	1 ms	1100 KB	Output is correct
25	Correct	1 ms	972 KB	Output is correct
26	Correct	1 ms	1100 KB	Output is correct
27	Correct	1 ms	1100 KB	Output is correct
28	Correct	2 ms	1100 KB	Output is correct
29	Correct	2 ms	1100 KB	Output is correct
30	Correct	1 ms	1100 KB	Output is correct
31	Correct	1 ms	1100 KB	Output is correct
32	Correct	1 ms	1100 KB	Output is correct
33	Correct	2 ms	1100 KB	Output is correct
34	Correct	2 ms	1100 KB	Output is correct
35	Correct	6 ms	1308 KB	Output is correct
36	Correct	1 ms	716 KB	Output is correct
37	Correct	4 ms	1484 KB	Output is correct
38	Correct	8 ms	1356 KB	Output is correct
39	Correct	5 ms	588 KB	Output is correct
40	Correct	6 ms	1100 KB	Output is correct
41	Correct	9 ms	1612 KB	Output is correct
42	Correct	5 ms	1356 KB	Output is correct
43	Correct	4 ms	1356 KB	Output is correct
44	Correct	4 ms	1356 KB	Output is correct
45	Correct	11 ms	1612 KB	Output is correct
46	Correct	8 ms	1612 KB	Output is correct

Subtask #5
0 / 43.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	0 ms	332 KB	Output is correct
3	Correct	0 ms	332 KB	Output is correct
4	Correct	0 ms	332 KB	Output is correct
5	Correct	1 ms	332 KB	Output is correct
6	Correct	0 ms	332 KB	Output is correct
7	Correct	0 ms	332 KB	Output is correct
8	Correct	0 ms	332 KB	Output is correct
9	Correct	0 ms	332 KB	Output is correct
10	Correct	0 ms	332 KB	Output is correct
11	Correct	1 ms	332 KB	Output is correct
12	Correct	1 ms	332 KB	Output is correct
13	Correct	1 ms	332 KB	Output is correct
14	Correct	1 ms	460 KB	Output is correct
15	Correct	1 ms	460 KB	Output is correct
16	Correct	1 ms	332 KB	Output is correct
17	Correct	1 ms	588 KB	Output is correct
18	Correct	1 ms	332 KB	Output is correct
19	Correct	1 ms	332 KB	Output is correct
20	Correct	1 ms	1100 KB	Output is correct
21	Correct	1 ms	332 KB	Output is correct
22	Correct	0 ms	332 KB	Output is correct
23	Correct	1 ms	972 KB	Output is correct
24	Correct	2 ms	1100 KB	Output is correct
25	Correct	1 ms	972 KB	Output is correct
26	Correct	1 ms	1100 KB	Output is correct
27	Correct	1 ms	1100 KB	Output is correct
28	Correct	1 ms	1100 KB	Output is correct
29	Correct	2 ms	1100 KB	Output is correct
30	Correct	1 ms	1100 KB	Output is correct
31	Correct	1 ms	1100 KB	Output is correct
32	Correct	1 ms	1100 KB	Output is correct
33	Correct	3 ms	1100 KB	Output is correct
34	Correct	2 ms	1060 KB	Output is correct
35	Correct	5 ms	1228 KB	Output is correct
36	Correct	1 ms	716 KB	Output is correct
37	Correct	4 ms	1484 KB	Output is correct
38	Correct	7 ms	1356 KB	Output is correct
39	Correct	5 ms	588 KB	Output is correct
40	Correct	6 ms	1056 KB	Output is correct
41	Correct	6 ms	1612 KB	Output is correct
42	Correct	4 ms	1356 KB	Output is correct
43	Correct	4 ms	1356 KB	Output is correct
44	Correct	5 ms	1356 KB	Output is correct
45	Correct	10 ms	1708 KB	Output is correct
46	Correct	8 ms	1612 KB	Output is correct
47	Runtime error	7 ms	1740 KB	Execution killed with signal 11
48	Halted	0 ms	0 KB	-

Submission #519867

Compilation message

Subtask #1 10.0 / 10.0

Subtask #2 12.0 / 12.0

Subtask #3 14.0 / 14.0

Subtask #4 21.0 / 21.0

Subtask #5 0 / 43.0

Subtask #1
10.0 / 10.0

Subtask #2
12.0 / 12.0

Subtask #3
14.0 / 14.0

Subtask #4
21.0 / 21.0

Subtask #5
0 / 43.0