Submission #30890

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
30890	2017-07-31T11:51:51 Z	Navick	Jakarta Skyscrapers (APIO15_skyscraper)	C++14	36 / 100	1000 ms	33148 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;
map<pii, int> d;
vector<int> t[N];
bool vis[N];
deque<pii> q;

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

	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[{sp, sb}] = 0;

	while(!q.empty()){
		int p = q.front().F, b = q.front().S;
		int dis = d[{p, b}];
		if(p == se)return cout << dis << '\n', 0;
		q.pop_front();
		if(!vis[p]){
			for(auto l : t[p]){
				if(d.count({p, l}) == 0)
					d[{p, l}] = dis, q.push_front({p, l});
			}
			vis[p] = true;
		}
		if(p + b < n){
			if(d.count({p + b, b}) == 0){
				d[{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({p - b, b}) == 0){
				d[{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({se, i}))
			mn = min(mn, d[{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:68:12: warning: division by zero [-Wdiv-by-zero]
   cout << 1/0 << endl;
            ^
skyscraper.cpp:57:5: warning: 'se' may be used uninitialized in this function [-Wmaybe-uninitialized]
     if(p - b == se)
     ^

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	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	3316 KB	Output is correct
15	Correct	0 ms	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	3 ms	3316 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	3052 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	3052 KB	Output is correct
21	Correct	0 ms	2920 KB	Output is correct
22	Correct	0 ms	2920 KB	Output is correct
23	Correct	3 ms	3184 KB	Output is correct
24	Correct	6 ms	3316 KB	Output is correct
25	Correct	0 ms	2920 KB	Output is correct
26	Correct	0 ms	3052 KB	Output is correct
27	Correct	0 ms	3184 KB	Output is correct
28	Correct	13 ms	4240 KB	Output is correct
29	Correct	49 ms	6748 KB	Output is correct
30	Correct	6 ms	3976 KB	Output is correct
31	Correct	23 ms	4900 KB	Output is correct
32	Correct	16 ms	4372 KB	Output is correct
33	Correct	173 ms	10444 KB	Output is correct
34	Correct	66 ms	6880 KB	Output is correct

Subtask #4
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	3316 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	3052 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	3052 KB	Output is correct
21	Correct	0 ms	2920 KB	Output is correct
22	Correct	0 ms	2920 KB	Output is correct
23	Correct	3 ms	3184 KB	Output is correct
24	Correct	3 ms	3316 KB	Output is correct
25	Correct	0 ms	2920 KB	Output is correct
26	Correct	0 ms	3052 KB	Output is correct
27	Correct	0 ms	3184 KB	Output is correct
28	Correct	13 ms	4240 KB	Output is correct
29	Correct	66 ms	6748 KB	Output is correct
30	Correct	13 ms	3976 KB	Output is correct
31	Correct	26 ms	4900 KB	Output is correct
32	Correct	16 ms	4372 KB	Output is correct
33	Correct	173 ms	10444 KB	Output is correct
34	Correct	66 ms	6880 KB	Output is correct
35	Correct	16 ms	4372 KB	Output is correct
36	Correct	0 ms	3052 KB	Output is correct
37	Correct	6 ms	3316 KB	Output is correct
38	Correct	6 ms	3184 KB	Output is correct
39	Correct	6 ms	3184 KB	Output is correct
40	Correct	6 ms	3184 KB	Output is correct
41	Correct	6 ms	3184 KB	Output is correct
42	Correct	6 ms	3216 KB	Output is correct
43	Correct	6 ms	3348 KB	Output is correct
44	Correct	6 ms	3212 KB	Output is correct
45	Execution timed out	1000 ms	33148 KB	Execution timed out
46	Halted	0 ms	0 KB	-

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	3 ms	3316 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	3052 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	3052 KB	Output is correct
21	Correct	0 ms	2920 KB	Output is correct
22	Correct	0 ms	2920 KB	Output is correct
23	Correct	3 ms	3184 KB	Output is correct
24	Correct	0 ms	3316 KB	Output is correct
25	Correct	0 ms	2920 KB	Output is correct
26	Correct	0 ms	3052 KB	Output is correct
27	Correct	0 ms	3184 KB	Output is correct
28	Correct	16 ms	4240 KB	Output is correct
29	Correct	63 ms	6748 KB	Output is correct
30	Correct	6 ms	3976 KB	Output is correct
31	Correct	33 ms	4900 KB	Output is correct
32	Correct	16 ms	4372 KB	Output is correct
33	Correct	173 ms	10444 KB	Output is correct
34	Correct	79 ms	6880 KB	Output is correct
35	Correct	13 ms	4372 KB	Output is correct
36	Correct	0 ms	3052 KB	Output is correct
37	Correct	3 ms	3316 KB	Output is correct
38	Correct	6 ms	3184 KB	Output is correct
39	Correct	6 ms	3184 KB	Output is correct
40	Correct	9 ms	3184 KB	Output is correct
41	Correct	9 ms	3184 KB	Output is correct
42	Correct	6 ms	3216 KB	Output is correct
43	Correct	3 ms	3348 KB	Output is correct
44	Correct	6 ms	3212 KB	Output is correct
45	Execution timed out	1000 ms	33148 KB	Execution timed out
46	Halted	0 ms	0 KB	-

Submission #30890

Compilation message

Subtask #1 10.0 / 10.0

Subtask #2 12.0 / 12.0

Subtask #3 14.0 / 14.0

Subtask #4 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
0 / 21.0

Subtask #5
0 / 43.0