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Submission #248367

# Submission time Handle Problem Language Result Execution time Memory
248367 2020-07-12T09:59:08 Z sahil_k Jakarta Skyscrapers (APIO15_skyscraper) C++14
36 / 100
 367 ms 262148 KB 
#include <iostream>
#include <vector>
#include <set>
using namespace std;
int main () {
	int n, m;
	cin >> n >> m;
	vector< pair<int, int> > adj[n];
	int bi, pi;
	int start, end;
	for (int i=0; i<m; i++) {
		cin >> bi >> pi;
		if (i == 0) start = bi;
		if (i == 1) end = bi;
		for (int j=1; j<n; j++) {
			if (bi-j*pi >= 0) adj[bi].push_back(make_pair(bi-j*pi, j));
			if (bi+j*pi < n) adj[bi].push_back(make_pair(bi+j*pi, j));
		}
	}
	set< pair<int, int> > ord;
	int dist[n];
	bool vis[n];
	for (int i=0; i<n; i++) {
		dist[i] = 1e9;
		vis[i] = false;
	}
	dist[start] = 0;
	ord.insert(make_pair(0, start));
	while (ord.size() > 0) {
		pair<int, int> cur = *ord.begin();
		ord.erase(ord.begin());
		vis[cur.second] = true;
		for (auto i: adj[cur.second]) {
			if (!vis[i.first] && cur.first+i.second < dist[i.first]) {
				ord.erase(make_pair(dist[i.first], i.first));
				dist[i.first] = cur.first+i.second;
				ord.insert(make_pair(dist[i.first], i.first));
			}
		}
	}
	if (dist[end] == 1e9) {
		cout << -1 << endl;
	} else {
		cout << dist[end] << endl;
	}
}

Compilation message

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:28:22: warning: 'start' may be used uninitialized in this function [-Wmaybe-uninitialized]
  ord.insert(make_pair(0, start));
             ~~~~~~~~~^~~~~~~~~~
skyscraper.cpp:41:14: warning: 'end' may be used uninitialized in this function [-Wmaybe-uninitialized]
  if (dist[end] == 1e9) {
      ~~~~~~~~^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 0 ms 256 KB Output is correct
7 Correct 0 ms 256 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 1 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 0 ms 256 KB Output is correct
8 Correct 0 ms 256 KB Output is correct
9 Correct 1 ms 256 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 2 ms 384 KB Output is correct
12 Correct 5 ms 2548 KB Output is correct
13 Correct 5 ms 2548 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 2 ms 384 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 0 ms 256 KB Output is correct
7 Correct 1 ms 256 KB Output is correct
8 Correct 0 ms 256 KB Output is correct
9 Correct 0 ms 256 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 2 ms 384 KB Output is correct
12 Correct 5 ms 2548 KB Output is correct
13 Correct 5 ms 2548 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 2 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 4 ms 640 KB Output is correct
18 Correct 3 ms 384 KB Output is correct
19 Correct 2 ms 384 KB Output is correct
20 Correct 68 ms 32504 KB Output is correct
21 Correct 2 ms 384 KB Output is correct
22 Correct 3 ms 372 KB Output is correct
23 Correct 4 ms 512 KB Output is correct
24 Correct 7 ms 512 KB Output is correct
25 Correct 8 ms 512 KB Output is correct
26 Correct 72 ms 33492 KB Output is correct
27 Correct 72 ms 33356 KB Output is correct
28 Correct 7 ms 640 KB Output is correct
29 Correct 7 ms 1152 KB Output is correct
30 Correct 3 ms 640 KB Output is correct
31 Correct 4 ms 768 KB Output is correct
32 Correct 4 ms 640 KB Output is correct
33 Correct 11 ms 1664 KB Output is correct
34 Correct 12 ms 1664 KB Output is correct

Subtask #4
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 0 ms 256 KB Output is correct
7 Correct 0 ms 256 KB Output is correct
8 Correct 0 ms 256 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 2 ms 384 KB Output is correct
12 Correct 5 ms 2548 KB Output is correct
13 Correct 8 ms 2548 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 2 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 4 ms 640 KB Output is correct
18 Correct 3 ms 384 KB Output is correct
19 Correct 2 ms 384 KB Output is correct
20 Correct 69 ms 32504 KB Output is correct
21 Correct 2 ms 384 KB Output is correct
22 Correct 3 ms 384 KB Output is correct
23 Correct 4 ms 512 KB Output is correct
24 Correct 8 ms 640 KB Output is correct
25 Correct 7 ms 512 KB Output is correct
26 Correct 71 ms 33468 KB Output is correct
27 Correct 71 ms 33356 KB Output is correct
28 Correct 7 ms 640 KB Output is correct
29 Correct 7 ms 1152 KB Output is correct
30 Correct 3 ms 640 KB Output is correct
31 Correct 5 ms 768 KB Output is correct
32 Correct 4 ms 640 KB Output is correct
33 Correct 12 ms 1664 KB Output is correct
34 Correct 12 ms 1664 KB Output is correct
35 Correct 65 ms 2040 KB Output is correct
36 Correct 11 ms 640 KB Output is correct
37 Correct 65 ms 3704 KB Output is correct
38 Correct 107 ms 3080 KB Output is correct
39 Correct 98 ms 3320 KB Output is correct
40 Correct 98 ms 3160 KB Output is correct
41 Correct 97 ms 3064 KB Output is correct
42 Runtime error 367 ms 262148 KB Execution killed with signal 9 (could be triggered by violating memory limits)
43 Halted 0 ms 0 KB -

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 0 ms 256 KB Output is correct
7 Correct 0 ms 256 KB Output is correct
8 Correct 0 ms 256 KB Output is correct
9 Correct 1 ms 256 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 2 ms 384 KB Output is correct
12 Correct 5 ms 2548 KB Output is correct
13 Correct 5 ms 2548 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 2 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 4 ms 640 KB Output is correct
18 Correct 3 ms 384 KB Output is correct
19 Correct 2 ms 384 KB Output is correct
20 Correct 67 ms 32504 KB Output is correct
21 Correct 2 ms 384 KB Output is correct
22 Correct 2 ms 384 KB Output is correct
23 Correct 4 ms 512 KB Output is correct
24 Correct 7 ms 504 KB Output is correct
25 Correct 8 ms 512 KB Output is correct
26 Correct 74 ms 33484 KB Output is correct
27 Correct 75 ms 33340 KB Output is correct
28 Correct 7 ms 640 KB Output is correct
29 Correct 7 ms 1152 KB Output is correct
30 Correct 3 ms 640 KB Output is correct
31 Correct 5 ms 768 KB Output is correct
32 Correct 4 ms 640 KB Output is correct
33 Correct 12 ms 1664 KB Output is correct
34 Correct 12 ms 1664 KB Output is correct
35 Correct 65 ms 2040 KB Output is correct
36 Correct 11 ms 640 KB Output is correct
37 Correct 65 ms 3704 KB Output is correct
38 Correct 98 ms 3064 KB Output is correct
39 Correct 102 ms 3352 KB Output is correct
40 Correct 97 ms 3196 KB Output is correct
41 Correct 96 ms 3064 KB Output is correct
42 Runtime error 357 ms 262148 KB Execution killed with signal 9 (could be triggered by violating memory limits)
43 Halted 0 ms 0 KB -