Submission #602814

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
602814	2022-07-23T11:32:36 Z	fuad27	Jakarta Skyscrapers (APIO15_skyscraper)	C++17	100 / 100	623 ms	5836 KB

skyscraper

/*
 * Created: 2022-07-23 13:06
*/
#ifndef LOCAL
	#pragma GCC optimize("O3,unroll-loops")
	#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
#endif
 
#include <bits/stdc++.h>
using namespace std;
 
using ll = int;
 
#define FOR(i,a,b) for(int i=int(a);i<int(b);i++)
#define rep(i,b) FOR(i,0,b)
#define FORN(i,a,b) for(int i=int(b)-1;i>=a;i--)
#define per(i,b) FORN(i,0,b)
 
#define mkp make_pair
#define pb push_back
#define ep emplace_back
#define ff first
#define ss second
#define bg begin()
#define ed end()
#define sz(x) (int)x.size()
#define all(x) (x).bg,(x).ed
#define FIO ios_base::sync_with_stdio(0);\
	cin.tie(0);
 
template<class t> using vc=vector<t>;;
template<class t> using vvc=vc<vc<t>>;
 
using pii=pair<int,int>;
using pll=pair<ll,ll>;
using vi= vc<int>;
using vll= vc<ll>;
 
 
#ifdef LOCAL
#include "/home/fuad/cp/dbg.h"
#else
#define dbg(x...)
#endif
 
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
mt19937_64 rngll(chrono::steady_clock::now().time_since_epoch().count());
const int inf=1e9;
void solve() {
	int n, m;
	cin >> n >> m;
	map<pll,int> mp;
	int b[m], p[m];
	vector<int> g[n];
	for(int i = 0;i<m;i++) {
		cin >> b[i] >> p[i];
		if(mp[mkp(b[i], p[i])])continue;
		g[b[i]].push_back(p[i]);
	}
	priority_queue<pll, vc<pll>, greater<pll>> pq;
	pq.push(mkp(0, b[0]));
	vc<int> dist(n, inf);
	dist[b[0]]=0;
	vc<bool> vis(n);
	while(!pq.empty()) {
		int at=pq.top().ss;
		pq.pop();
		if(vis[at])continue;
		vis[at]=1;
		for(int i:g[at]) {
			int cnt=0;
			for(int j = at+i;j<n;j+=i) {
				cnt++;
				if(dist[j]>dist[at]+cnt) {
					dist[j]=dist[at]+cnt;
					pq.push(mkp(dist[j], j));
				}
			}
			cnt=0;
			for(int j = at-i;j>=0;j-=i) {
				cnt++;
				if(dist[j]>dist[at]+cnt) {
					dist[j]=dist[at]+cnt;
					pq.push(mkp(dist[j], j));
				}
			}
		}
	}
	cout<<(dist[b[1]]==inf?-1:dist[b[1]])<<"\n";
}
 
int main () {
	FIO;
	int t=1;
	// cin >> t;
	while(t--)
		solve();
}
 

Subtask #1

10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct

Subtask #2

12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	468 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	1 ms	468 KB	Output is correct
15	Correct	1 ms	468 KB	Output is correct

Subtask #3

14.0 / 14.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	2 ms	468 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	1 ms	468 KB	Output is correct
15	Correct	1 ms	468 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	1 ms	468 KB	Output is correct
18	Correct	1 ms	340 KB	Output is correct
19	Correct	1 ms	340 KB	Output is correct
20	Correct	3 ms	596 KB	Output is correct
21	Correct	1 ms	340 KB	Output is correct
22	Correct	1 ms	340 KB	Output is correct
23	Correct	1 ms	468 KB	Output is correct
24	Correct	1 ms	468 KB	Output is correct
25	Correct	1 ms	596 KB	Output is correct
26	Correct	4 ms	340 KB	Output is correct
27	Correct	3 ms	340 KB	Output is correct
28	Correct	1 ms	468 KB	Output is correct
29	Correct	2 ms	596 KB	Output is correct
30	Correct	1 ms	468 KB	Output is correct
31	Correct	1 ms	468 KB	Output is correct
32	Correct	1 ms	468 KB	Output is correct
33	Correct	3 ms	724 KB	Output is correct
34	Correct	3 ms	724 KB	Output is correct

Subtask #4

21.0 / 21.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	468 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	1 ms	468 KB	Output is correct
15	Correct	1 ms	468 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	1 ms	468 KB	Output is correct
18	Correct	1 ms	340 KB	Output is correct
19	Correct	1 ms	340 KB	Output is correct
20	Correct	4 ms	596 KB	Output is correct
21	Correct	1 ms	340 KB	Output is correct
22	Correct	1 ms	340 KB	Output is correct
23	Correct	1 ms	468 KB	Output is correct
24	Correct	2 ms	468 KB	Output is correct
25	Correct	1 ms	596 KB	Output is correct
26	Correct	3 ms	340 KB	Output is correct
27	Correct	4 ms	340 KB	Output is correct
28	Correct	1 ms	468 KB	Output is correct
29	Correct	2 ms	596 KB	Output is correct
30	Correct	1 ms	468 KB	Output is correct
31	Correct	1 ms	468 KB	Output is correct
32	Correct	1 ms	468 KB	Output is correct
33	Correct	2 ms	724 KB	Output is correct
34	Correct	2 ms	724 KB	Output is correct
35	Correct	12 ms	2448 KB	Output is correct
36	Correct	3 ms	724 KB	Output is correct
37	Correct	10 ms	2188 KB	Output is correct
38	Correct	16 ms	3156 KB	Output is correct
39	Correct	18 ms	3156 KB	Output is correct
40	Correct	16 ms	3156 KB	Output is correct
41	Correct	17 ms	3156 KB	Output is correct
42	Correct	47 ms	1060 KB	Output is correct
43	Correct	44 ms	1064 KB	Output is correct
44	Correct	66 ms	1108 KB	Output is correct
45	Correct	16 ms	3068 KB	Output is correct
46	Correct	16 ms	3028 KB	Output is correct

Subtask #5

43.0 / 43.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	468 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	1 ms	468 KB	Output is correct
15	Correct	1 ms	468 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	2 ms	468 KB	Output is correct
18	Correct	1 ms	340 KB	Output is correct
19	Correct	1 ms	340 KB	Output is correct
20	Correct	6 ms	596 KB	Output is correct
21	Correct	1 ms	340 KB	Output is correct
22	Correct	1 ms	340 KB	Output is correct
23	Correct	1 ms	472 KB	Output is correct
24	Correct	2 ms	468 KB	Output is correct
25	Correct	1 ms	596 KB	Output is correct
26	Correct	3 ms	436 KB	Output is correct
27	Correct	4 ms	340 KB	Output is correct
28	Correct	1 ms	468 KB	Output is correct
29	Correct	2 ms	596 KB	Output is correct
30	Correct	1 ms	468 KB	Output is correct
31	Correct	2 ms	544 KB	Output is correct
32	Correct	1 ms	468 KB	Output is correct
33	Correct	3 ms	724 KB	Output is correct
34	Correct	3 ms	724 KB	Output is correct
35	Correct	13 ms	2404 KB	Output is correct
36	Correct	3 ms	724 KB	Output is correct
37	Correct	14 ms	2148 KB	Output is correct
38	Correct	21 ms	3088 KB	Output is correct
39	Correct	18 ms	3072 KB	Output is correct
40	Correct	16 ms	3084 KB	Output is correct
41	Correct	15 ms	3160 KB	Output is correct
42	Correct	50 ms	1056 KB	Output is correct
43	Correct	44 ms	980 KB	Output is correct
44	Correct	45 ms	1108 KB	Output is correct
45	Correct	14 ms	3028 KB	Output is correct
46	Correct	15 ms	2980 KB	Output is correct
47	Correct	26 ms	3536 KB	Output is correct
48	Correct	13 ms	3148 KB	Output is correct
49	Correct	16 ms	3060 KB	Output is correct
50	Correct	11 ms	2560 KB	Output is correct
51	Correct	31 ms	5328 KB	Output is correct
52	Correct	31 ms	4768 KB	Output is correct
53	Correct	20 ms	4772 KB	Output is correct
54	Correct	2 ms	1364 KB	Output is correct
55	Correct	2 ms	1364 KB	Output is correct
56	Correct	623 ms	4804 KB	Output is correct
57	Correct	38 ms	3532 KB	Output is correct
58	Correct	515 ms	1880 KB	Output is correct
59	Correct	612 ms	2004 KB	Output is correct
60	Correct	538 ms	2004 KB	Output is correct
61	Correct	543 ms	2228 KB	Output is correct
62	Correct	16 ms	4440 KB	Output is correct
63	Correct	38 ms	4864 KB	Output is correct
64	Correct	36 ms	5836 KB	Output is correct
65	Correct	43 ms	5832 KB	Output is correct
66	Correct	57 ms	5740 KB	Output is correct
67	Correct	60 ms	5832 KB	Output is correct