Submission #30892

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
30892	2017-07-31T12:13:28 Z	Navick	Jakarta Skyscrapers (APIO15_skyscraper)	C++14	57 / 100	1000 ms	121436 KB

skyscraper

#include <bits/stdc++.h>
#define F first
#define S second
#define pii pair<int, int>
#define pb push_back

using namespace std;

typedef long long ll;
typedef long double ld;

const int N = 3e4 + 10, M = 5e6, INF = 1e9;
unordered_map<int, int> d;
vector<int> t[N];
bool vis[N];
deque<pii> q;
int sp, sb, se;


inline ll gg(ll a, ll b){
	return a * N + b;
}

int main(){
	ios_base::sync_with_stdio(0); cin.tie(0);
	int n, m; cin >> n >> m;

	for(int i=0; i<m; i++){
		int p, b; cin >> p >> b;
		t[p].pb(b);
		if(i == 0)
			sp = p, sb = b;
		if(i == 1)
			se = p;
	}

	q.push_back({sp, sb});
	d[gg(sp, sb)] = 0;

	while(!q.empty()){
		int p = q.front().F, b = q.front().S;
		int dis = d[gg(p, b)];
		if(p == se)return cout << dis << '\n', 0;
		q.pop_front();
		if(!vis[p]){
			for(auto l : t[p]){
				if(d.count(gg(p, l)) == 0)
					d[gg(p, l)] = dis, q.push_front({p, l});
			}
			vis[p] = true;
		}
		if(p + b < n){
			if(d.count(gg(p + b, b)) == 0){
				d[gg(p + b, b)] = dis + 1, q.push_back({p + b, b});
				if(p + b == se)
					return cout << dis + 1 << '\n', 0;
			}
		}
		if(p - b >= 0){
			if(d.count(gg(p - b, b)) == 0){
				d[gg(p - b, b)] = dis + 1, q.push_back({p - b, b});
				if(p - b == se)
					return cout << dis + 1 << '\n', 0;
			}
		}
	}
	int mn = INF;
	for(int i=0; i<=n; i++){
		if(d.count(gg(se, i)))
			mn = min(mn, d[gg(se, i)]);
	}
	if(d.size() > 1e6)
		cout << 1/0 << endl;
	if(mn < INF)
		cout << mn << endl;
	else cout << -1 << endl;
}

Compilation message

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:73:12: warning: division by zero [-Wdiv-by-zero]
   cout << 1/0 << endl;
            ^

Subtask #1
10.0 / 10.0

#	Verdict	Memory	Grader output
1	Correct	2920 KB	Output is correct
2	Correct	2920 KB	Output is correct
3	Correct	2920 KB	Output is correct
4	Correct	2920 KB	Output is correct
5	Correct	2920 KB	Output is correct
6	Correct	2920 KB	Output is correct
7	Correct	2920 KB	Output is correct

Subtask #2
12.0 / 12.0

#	Verdict	Memory	Grader output
1	Correct	2920 KB	Output is correct
2	Correct	2920 KB	Output is correct
3	Correct	2920 KB	Output is correct
4	Correct	2920 KB	Output is correct
5	Correct	2920 KB	Output is correct
6	Correct	2920 KB	Output is correct
7	Correct	2920 KB	Output is correct
8	Correct	2920 KB	Output is correct
9	Correct	2920 KB	Output is correct
10	Correct	2920 KB	Output is correct
11	Correct	2920 KB	Output is correct
12	Correct	2920 KB	Output is correct
13	Correct	2920 KB	Output is correct
14	Correct	3200 KB	Output is correct
15	Correct	2920 KB	Output is correct

Subtask #3
14.0 / 14.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	2920 KB	Output is correct
2	Correct	0 ms	2920 KB	Output is correct
3	Correct	0 ms	2920 KB	Output is correct
4	Correct	0 ms	2920 KB	Output is correct
5	Correct	0 ms	2920 KB	Output is correct
6	Correct	0 ms	2920 KB	Output is correct
7	Correct	0 ms	2920 KB	Output is correct
8	Correct	0 ms	2920 KB	Output is correct
9	Correct	0 ms	2920 KB	Output is correct
10	Correct	0 ms	2920 KB	Output is correct
11	Correct	0 ms	2920 KB	Output is correct
12	Correct	0 ms	2920 KB	Output is correct
13	Correct	0 ms	2920 KB	Output is correct
14	Correct	0 ms	3200 KB	Output is correct
15	Correct	0 ms	2920 KB	Output is correct
16	Correct	0 ms	2920 KB	Output is correct
17	Correct	0 ms	3080 KB	Output is correct
18	Correct	0 ms	2920 KB	Output is correct
19	Correct	0 ms	2920 KB	Output is correct
20	Correct	0 ms	3060 KB	Output is correct
21	Correct	0 ms	2920 KB	Output is correct
22	Correct	0 ms	2920 KB	Output is correct
23	Correct	0 ms	3076 KB	Output is correct
24	Correct	0 ms	3200 KB	Output is correct
25	Correct	0 ms	2920 KB	Output is correct
26	Correct	0 ms	3060 KB	Output is correct
27	Correct	0 ms	3060 KB	Output is correct
28	Correct	9 ms	3804 KB	Output is correct
29	Correct	19 ms	5316 KB	Output is correct
30	Correct	3 ms	3744 KB	Output is correct
31	Correct	9 ms	4636 KB	Output is correct
32	Correct	6 ms	3884 KB	Output is correct
33	Correct	33 ms	7684 KB	Output is correct
34	Correct	23 ms	6324 KB	Output is correct

Subtask #4
21.0 / 21.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	2920 KB	Output is correct
2	Correct	0 ms	2920 KB	Output is correct
3	Correct	0 ms	2920 KB	Output is correct
4	Correct	0 ms	2920 KB	Output is correct
5	Correct	0 ms	2920 KB	Output is correct
6	Correct	0 ms	2920 KB	Output is correct
7	Correct	0 ms	2920 KB	Output is correct
8	Correct	0 ms	2920 KB	Output is correct
9	Correct	0 ms	2920 KB	Output is correct
10	Correct	0 ms	2920 KB	Output is correct
11	Correct	0 ms	2920 KB	Output is correct
12	Correct	0 ms	2920 KB	Output is correct
13	Correct	0 ms	2920 KB	Output is correct
14	Correct	3 ms	3200 KB	Output is correct
15	Correct	0 ms	2920 KB	Output is correct
16	Correct	0 ms	2920 KB	Output is correct
17	Correct	0 ms	3080 KB	Output is correct
18	Correct	0 ms	2920 KB	Output is correct
19	Correct	0 ms	2920 KB	Output is correct
20	Correct	0 ms	3060 KB	Output is correct
21	Correct	0 ms	2920 KB	Output is correct
22	Correct	0 ms	2920 KB	Output is correct
23	Correct	0 ms	3076 KB	Output is correct
24	Correct	3 ms	3200 KB	Output is correct
25	Correct	0 ms	2920 KB	Output is correct
26	Correct	0 ms	3060 KB	Output is correct
27	Correct	0 ms	3060 KB	Output is correct
28	Correct	3 ms	3804 KB	Output is correct
29	Correct	19 ms	5316 KB	Output is correct
30	Correct	6 ms	3744 KB	Output is correct
31	Correct	6 ms	4636 KB	Output is correct
32	Correct	6 ms	3884 KB	Output is correct
33	Correct	33 ms	7684 KB	Output is correct
34	Correct	16 ms	6324 KB	Output is correct
35	Correct	13 ms	4068 KB	Output is correct
36	Correct	0 ms	2920 KB	Output is correct
37	Correct	0 ms	3204 KB	Output is correct
38	Correct	6 ms	3184 KB	Output is correct
39	Correct	6 ms	3184 KB	Output is correct
40	Correct	0 ms	3184 KB	Output is correct
41	Correct	6 ms	3184 KB	Output is correct
42	Correct	3 ms	3084 KB	Output is correct
43	Correct	6 ms	3216 KB	Output is correct
44	Correct	6 ms	3212 KB	Output is correct
45	Correct	193 ms	22284 KB	Output is correct
46	Correct	103 ms	12824 KB	Output is correct

Subtask #5
0 / 43.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	2920 KB	Output is correct
2	Correct	0 ms	2920 KB	Output is correct
3	Correct	0 ms	2920 KB	Output is correct
4	Correct	0 ms	2920 KB	Output is correct
5	Correct	0 ms	2920 KB	Output is correct
6	Correct	0 ms	2920 KB	Output is correct
7	Correct	0 ms	2920 KB	Output is correct
8	Correct	0 ms	2920 KB	Output is correct
9	Correct	0 ms	2920 KB	Output is correct
10	Correct	0 ms	2920 KB	Output is correct
11	Correct	0 ms	2920 KB	Output is correct
12	Correct	0 ms	2920 KB	Output is correct
13	Correct	0 ms	2920 KB	Output is correct
14	Correct	0 ms	3200 KB	Output is correct
15	Correct	0 ms	2920 KB	Output is correct
16	Correct	0 ms	2920 KB	Output is correct
17	Correct	0 ms	3080 KB	Output is correct
18	Correct	0 ms	2920 KB	Output is correct
19	Correct	0 ms	2920 KB	Output is correct
20	Correct	0 ms	3060 KB	Output is correct
21	Correct	0 ms	2920 KB	Output is correct
22	Correct	0 ms	2920 KB	Output is correct
23	Correct	0 ms	3076 KB	Output is correct
24	Correct	0 ms	3200 KB	Output is correct
25	Correct	0 ms	2920 KB	Output is correct
26	Correct	0 ms	3060 KB	Output is correct
27	Correct	0 ms	3060 KB	Output is correct
28	Correct	6 ms	3804 KB	Output is correct
29	Correct	16 ms	5316 KB	Output is correct
30	Correct	6 ms	3744 KB	Output is correct
31	Correct	3 ms	4636 KB	Output is correct
32	Correct	3 ms	3884 KB	Output is correct
33	Correct	36 ms	7684 KB	Output is correct
34	Correct	19 ms	6324 KB	Output is correct
35	Correct	13 ms	4068 KB	Output is correct
36	Correct	0 ms	2920 KB	Output is correct
37	Correct	3 ms	3204 KB	Output is correct
38	Correct	6 ms	3184 KB	Output is correct
39	Correct	9 ms	3184 KB	Output is correct
40	Correct	9 ms	3184 KB	Output is correct
41	Correct	6 ms	3184 KB	Output is correct
42	Correct	6 ms	3084 KB	Output is correct
43	Correct	3 ms	3216 KB	Output is correct
44	Correct	0 ms	3212 KB	Output is correct
45	Correct	179 ms	22284 KB	Output is correct
46	Correct	79 ms	12824 KB	Output is correct
47	Correct	3 ms	3320 KB	Output is correct
48	Correct	9 ms	3316 KB	Output is correct
49	Correct	9 ms	3316 KB	Output is correct
50	Correct	6 ms	3184 KB	Output is correct
51	Correct	29 ms	5384 KB	Output is correct
52	Correct	43 ms	5784 KB	Output is correct
53	Correct	13 ms	3752 KB	Output is correct
54	Correct	3 ms	3500 KB	Output is correct
55	Correct	6 ms	3876 KB	Output is correct
56	Correct	19 ms	5076 KB	Output is correct
57	Correct	0 ms	2920 KB	Output is correct
58	Correct	19 ms	6424 KB	Output is correct
59	Correct	16 ms	5304 KB	Output is correct
60	Correct	23 ms	5312 KB	Output is correct
61	Correct	26 ms	5188 KB	Output is correct
62	Correct	306 ms	21964 KB	Output is correct
63	Execution timed out	1000 ms	121436 KB	Execution timed out
64	Halted	0 ms	0 KB	-

Submission #30892

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