oj.uz

Submission #671155

# Submission time Handle Problem Language Result Execution time Memory
671155 2022-12-12T08:54:17 Z Dan4Life Jakarta Skyscrapers (APIO15_skyscraper) C++17
100 / 100
 206 ms 129324 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define pb push_back
#define fi first
#define se second
#define all(a) a.begin(), a.end()
using ll = long long;
using pii = pair<int,int>;
 
const int maxn = (int)3e4+10;
const ll LINF = (ll)1e18;
pii a[maxn];
int n, m, ans;
int dis[maxn];
bool vis[maxn];
vector<pii> adj[maxn];
vector<int> doge[maxn];

void dijkstra(int s){
	fill(dis,dis+maxn,LINF); fill(vis, vis+maxn,false);
	priority_queue<pii,vector<pii>,greater<pii>> pq;
	pq.push({0,s}); dis[s]=0;
	while(!pq.empty()){
		int a = pq.top().se; pq.pop();
		if(vis[a]) continue; vis[a]=1;
		for(auto u : adj[a]){
			int b = u.fi, w = u.se;
			if(dis[a]+w<dis[b]){
				dis[b]=dis[a]+w;
				pq.push({dis[b],b});
			}
		}
	}
}

int32_t main() {
	cin >> n >> m; ans = LINF;
	for(int i = 0; i < m; i++) cin >> a[i].fi >> a[i].se, doge[a[i].fi].pb(a[i].se);
	for(int i = 0; i < n; i++)
		sort(all(doge[i])), doge[i].erase(unique(all(doge[i])), doge[i].end());
	for(int i = 0; i < n; i++){
		for(auto p : doge[i]){
			for(int j = 1; ;j++){
				int b = i+j*p; if(b>=n) break;
				auto itr = lower_bound(doge[b].begin(), doge[b].end(), p)-doge[b].begin();
				adj[i].pb({b,j});if(itr!=doge[b].size() and doge[b][itr]==p) break;
			}
			for(int j = -1; ; j--){
				int b = i+j*p; if(b<0) break;
				auto itr = lower_bound(doge[b].begin(), doge[b].end(), p)-doge[b].begin();
				adj[i].pb({b,-j}); if(itr!=doge[b].size() and doge[b][itr]==p) break;
			}
		}
	}
	dijkstra(a[0].fi); cout << (dis[a[1].fi]==LINF?-1:dis[a[1].fi]);
}

Compilation message

skyscraper.cpp: In function 'void dijkstra(long long int)':
skyscraper.cpp:26:3: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   26 |   if(vis[a]) continue; vis[a]=1;
      |   ^~
skyscraper.cpp:26:24: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   26 |   if(vis[a]) continue; vis[a]=1;
      |                        ^~~
skyscraper.cpp: In function 'int32_t main()':
skyscraper.cpp:47:28: warning: comparison of integer expressions of different signedness: 'long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   47 |     adj[i].pb({b,j});if(itr!=doge[b].size() and doge[b][itr]==p) break;
      |                         ~~~^~~~~~~~~~~~~~~~
skyscraper.cpp:52:30: warning: comparison of integer expressions of different signedness: 'long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   52 |     adj[i].pb({b,-j}); if(itr!=doge[b].size() and doge[b][itr]==p) break;
      |                           ~~~^~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1876 KB Output is correct
2 Correct 2 ms 1876 KB Output is correct
3 Correct 1 ms 1876 KB Output is correct
4 Correct 1 ms 1876 KB Output is correct
5 Correct 1 ms 1920 KB Output is correct
6 Correct 1 ms 1972 KB Output is correct
7 Correct 1 ms 1876 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1876 KB Output is correct
2 Correct 1 ms 1968 KB Output is correct
3 Correct 1 ms 1876 KB Output is correct
4 Correct 1 ms 1876 KB Output is correct
5 Correct 1 ms 1876 KB Output is correct
6 Correct 1 ms 1876 KB Output is correct
7 Correct 1 ms 1972 KB Output is correct
8 Correct 1 ms 1876 KB Output is correct
9 Correct 1 ms 1876 KB Output is correct
10 Correct 2 ms 2004 KB Output is correct
11 Correct 2 ms 2084 KB Output is correct
12 Correct 2 ms 2004 KB Output is correct
13 Correct 2 ms 2028 KB Output is correct
14 Correct 3 ms 2132 KB Output is correct
15 Correct 2 ms 2132 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1876 KB Output is correct
2 Correct 1 ms 1876 KB Output is correct
3 Correct 2 ms 1876 KB Output is correct
4 Correct 1 ms 1972 KB Output is correct
5 Correct 1 ms 1976 KB Output is correct
6 Correct 1 ms 1972 KB Output is correct
7 Correct 1 ms 1876 KB Output is correct
8 Correct 2 ms 1876 KB Output is correct
9 Correct 1 ms 1876 KB Output is correct
10 Correct 2 ms 1976 KB Output is correct
11 Correct 3 ms 2108 KB Output is correct
12 Correct 2 ms 1980 KB Output is correct
13 Correct 2 ms 2004 KB Output is correct
14 Correct 2 ms 2104 KB Output is correct
15 Correct 2 ms 2156 KB Output is correct
16 Correct 2 ms 2004 KB Output is correct
17 Correct 3 ms 2388 KB Output is correct
18 Correct 2 ms 2108 KB Output is correct
19 Correct 2 ms 2004 KB Output is correct
20 Correct 2 ms 2132 KB Output is correct
21 Correct 2 ms 1980 KB Output is correct
22 Correct 2 ms 2004 KB Output is correct
23 Correct 2 ms 2132 KB Output is correct
24 Correct 3 ms 2368 KB Output is correct
25 Correct 3 ms 2260 KB Output is correct
26 Correct 2 ms 2260 KB Output is correct
27 Correct 3 ms 2132 KB Output is correct
28 Correct 3 ms 2516 KB Output is correct
29 Correct 4 ms 3412 KB Output is correct
30 Correct 2 ms 2516 KB Output is correct
31 Correct 3 ms 2900 KB Output is correct
32 Correct 2 ms 2608 KB Output is correct
33 Correct 7 ms 4944 KB Output is correct
34 Correct 7 ms 4816 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1876 KB Output is correct
2 Correct 1 ms 1876 KB Output is correct
3 Correct 1 ms 1876 KB Output is correct
4 Correct 1 ms 1876 KB Output is correct
5 Correct 1 ms 1972 KB Output is correct
6 Correct 1 ms 1876 KB Output is correct
7 Correct 1 ms 1980 KB Output is correct
8 Correct 1 ms 1876 KB Output is correct
9 Correct 1 ms 1876 KB Output is correct
10 Correct 2 ms 2004 KB Output is correct
11 Correct 2 ms 2132 KB Output is correct
12 Correct 2 ms 2004 KB Output is correct
13 Correct 2 ms 1924 KB Output is correct
14 Correct 2 ms 2132 KB Output is correct
15 Correct 2 ms 2132 KB Output is correct
16 Correct 2 ms 1972 KB Output is correct
17 Correct 3 ms 2388 KB Output is correct
18 Correct 2 ms 2056 KB Output is correct
19 Correct 2 ms 2004 KB Output is correct
20 Correct 2 ms 2132 KB Output is correct
21 Correct 2 ms 2004 KB Output is correct
22 Correct 2 ms 2004 KB Output is correct
23 Correct 2 ms 2132 KB Output is correct
24 Correct 3 ms 2364 KB Output is correct
25 Correct 3 ms 2240 KB Output is correct
26 Correct 2 ms 2260 KB Output is correct
27 Correct 2 ms 2132 KB Output is correct
28 Correct 5 ms 2492 KB Output is correct
29 Correct 4 ms 3424 KB Output is correct
30 Correct 2 ms 2516 KB Output is correct
31 Correct 3 ms 2900 KB Output is correct
32 Correct 3 ms 2644 KB Output is correct
33 Correct 7 ms 4944 KB Output is correct
34 Correct 7 ms 4816 KB Output is correct
35 Correct 17 ms 4868 KB Output is correct
36 Correct 4 ms 2448 KB Output is correct
37 Correct 17 ms 6808 KB Output is correct
38 Correct 22 ms 6476 KB Output is correct
39 Correct 22 ms 6568 KB Output is correct
40 Correct 25 ms 6408 KB Output is correct
41 Correct 22 ms 6440 KB Output is correct
42 Correct 14 ms 2968 KB Output is correct
43 Correct 13 ms 2956 KB Output is correct
44 Correct 14 ms 2916 KB Output is correct
45 Correct 24 ms 11536 KB Output is correct
46 Correct 25 ms 11544 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1876 KB Output is correct
2 Correct 1 ms 1968 KB Output is correct
3 Correct 1 ms 1876 KB Output is correct
4 Correct 1 ms 1972 KB Output is correct
5 Correct 1 ms 1876 KB Output is correct
6 Correct 1 ms 1876 KB Output is correct
7 Correct 1 ms 1972 KB Output is correct
8 Correct 2 ms 1876 KB Output is correct
9 Correct 1 ms 1876 KB Output is correct
10 Correct 2 ms 2004 KB Output is correct
11 Correct 2 ms 2108 KB Output is correct
12 Correct 2 ms 2004 KB Output is correct
13 Correct 3 ms 2004 KB Output is correct
14 Correct 2 ms 2108 KB Output is correct
15 Correct 2 ms 2132 KB Output is correct
16 Correct 2 ms 2004 KB Output is correct
17 Correct 3 ms 2388 KB Output is correct
18 Correct 2 ms 2132 KB Output is correct
19 Correct 2 ms 2004 KB Output is correct
20 Correct 2 ms 2112 KB Output is correct
21 Correct 2 ms 2004 KB Output is correct
22 Correct 2 ms 2104 KB Output is correct
23 Correct 2 ms 2132 KB Output is correct
24 Correct 3 ms 2260 KB Output is correct
25 Correct 3 ms 2260 KB Output is correct
26 Correct 2 ms 2260 KB Output is correct
27 Correct 2 ms 2132 KB Output is correct
28 Correct 3 ms 2448 KB Output is correct
29 Correct 4 ms 3412 KB Output is correct
30 Correct 3 ms 2516 KB Output is correct
31 Correct 3 ms 2868 KB Output is correct
32 Correct 2 ms 2616 KB Output is correct
33 Correct 7 ms 4944 KB Output is correct
34 Correct 7 ms 4784 KB Output is correct
35 Correct 17 ms 4920 KB Output is correct
36 Correct 4 ms 2500 KB Output is correct
37 Correct 17 ms 6732 KB Output is correct
38 Correct 22 ms 6428 KB Output is correct
39 Correct 22 ms 6524 KB Output is correct
40 Correct 22 ms 6496 KB Output is correct
41 Correct 22 ms 6476 KB Output is correct
42 Correct 13 ms 3032 KB Output is correct
43 Correct 13 ms 2896 KB Output is correct
44 Correct 15 ms 2932 KB Output is correct
45 Correct 26 ms 11524 KB Output is correct
46 Correct 25 ms 11580 KB Output is correct
47 Correct 47 ms 20400 KB Output is correct
48 Correct 22 ms 7256 KB Output is correct
49 Correct 19 ms 5576 KB Output is correct
50 Correct 15 ms 5348 KB Output is correct
51 Correct 48 ms 10440 KB Output is correct
52 Correct 47 ms 11548 KB Output is correct
53 Correct 27 ms 6216 KB Output is correct
54 Correct 3 ms 2776 KB Output is correct
55 Correct 4 ms 3792 KB Output is correct
56 Correct 20 ms 4820 KB Output is correct
57 Correct 36 ms 19160 KB Output is correct
58 Correct 13 ms 4780 KB Output is correct
59 Correct 18 ms 5556 KB Output is correct
60 Correct 19 ms 6776 KB Output is correct
61 Correct 18 ms 5308 KB Output is correct
62 Correct 32 ms 13420 KB Output is correct
63 Correct 76 ms 46172 KB Output is correct
64 Correct 84 ms 52856 KB Output is correct
65 Correct 113 ms 72628 KB Output is correct
66 Correct 206 ms 129324 KB Output is correct
67 Correct 204 ms 129304 KB Output is correct