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Submission #250024

# Submission time Handle Problem Language Result Execution time Memory
250024 2020-07-16T16:36:02 Z Evirir Jakarta Skyscrapers (APIO15_skyscraper) C++17
100 / 100
 349 ms 8436 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;

#define watch(x) cout<<(#x)<<"="<<(x)<<'\n'
#define mset(d,val) memset(d,val,sizeof(d))
#define setp(x) cout<<fixed<<setprecision(x)
#define forn(i,a,b) for(int i=(a);i<(b);i++)
#define fore(i,a,b) for(int i=(a);i<=(b);i++)
#define pb push_back
#define F first
#define S second
#define pqueue priority_queue
#define fbo find_by_order
#define ook order_of_key
typedef long long ll;
typedef pair<ll,ll> ii;
typedef pair<ll,ii> iii;
typedef vector<ll> vi;
typedef vector<ii> vii;
typedef long double ld;
typedef tree<ll, null_type, less<ll>, rb_tree_tag, tree_order_statistics_node_update> pbds;
void amin(ll &a, ll b){ a=min(a,b); }
void amax(ll &a, ll b){ a=max(a,b); }
void YES(){cout<<"YES\n";} void NO(){cout<<"NO\n";}
void SD(int t=0){ cout<<"PASSED "<<t<<endl; }
const ll INF = ll(1e18);
const int MOD = 998244353;

const bool DEBUG = 0;
const int MAXN = 30005;
const int MAXP = 30005;
const int MAXM = 30005;
const int LIM = 2;

int n,m;
int a[MAXM],p[MAXM];
vi v[MAXN];
ll dist[MAXN][LIM];

priority_queue<iii,vector<iii>,greater<iii>> q;
void add(ll x, ll y, ll w, ll d)
{
	if(x<0 || x>=n) return;
	
	if(y>=LIM)
	{
		for(int i=x%y;i<n;i+=y){
			add(i, 0, abs(x-i)/y, d);
		}
	}
	else
	{
		if(dist[x][y]>d+w){
			dist[x][y]=d+w;
			q.push({dist[x][y],{x,y}});
		}
	}
}

void dijkstra(ii src)
{
	dist[src.F][src.S]=0;
	q.push({0,src});
	
	while(!q.empty())
	{
		ii u=q.top().S; q.pop();
		if(u.S)
		{
			add(u.F-u.S, u.S, 1, dist[u.F][u.S]);
			add(u.F+u.S, u.S, 1, dist[u.F][u.S]);
			add(u.F, 0, 0, dist[u.F][u.S]);
		}
		else
		{
			for(int P: v[u.F])
			{
				add(u.F, P, 0, dist[u.F][u.S]);
			}
		}
	}
}

int main()
{
	ios_base::sync_with_stdio(0); cin.tie(0);
	
	cin>>n>>m;
	forn(i,0,m){
		cin>>a[i]>>p[i];
		v[a[i]].pb(p[i]);
	}
	
	forn(i,0,n) forn(j,0,LIM) dist[i][j]=INF;
	dijkstra({a[0],0});
	
	if(dist[a[1]][0]<INF) cout<<dist[a[1]][0]<<'\n';
	else cout<<-1<<'\n';
	
	return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1024 KB Output is correct
2 Correct 1 ms 1024 KB Output is correct
3 Correct 1 ms 1024 KB Output is correct
4 Correct 1 ms 1024 KB Output is correct
5 Correct 1 ms 1024 KB Output is correct
6 Correct 1 ms 1024 KB Output is correct
7 Correct 1 ms 1024 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1024 KB Output is correct
2 Correct 1 ms 1024 KB Output is correct
3 Correct 1 ms 1024 KB Output is correct
4 Correct 1 ms 1024 KB Output is correct
5 Correct 1 ms 1024 KB Output is correct
6 Correct 1 ms 1024 KB Output is correct
7 Correct 1 ms 1024 KB Output is correct
8 Correct 1 ms 1024 KB Output is correct
9 Correct 1 ms 1024 KB Output is correct
10 Correct 1 ms 1024 KB Output is correct
11 Correct 2 ms 1152 KB Output is correct
12 Correct 1 ms 1152 KB Output is correct
13 Correct 1 ms 1152 KB Output is correct
14 Correct 1 ms 1152 KB Output is correct
15 Correct 1 ms 1152 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1024 KB Output is correct
2 Correct 1 ms 1024 KB Output is correct
3 Correct 1 ms 1024 KB Output is correct
4 Correct 1 ms 1024 KB Output is correct
5 Correct 1 ms 1024 KB Output is correct
6 Correct 1 ms 1024 KB Output is correct
7 Correct 1 ms 1024 KB Output is correct
8 Correct 1 ms 1024 KB Output is correct
9 Correct 1 ms 1024 KB Output is correct
10 Correct 1 ms 1024 KB Output is correct
11 Correct 1 ms 1152 KB Output is correct
12 Correct 1 ms 1152 KB Output is correct
13 Correct 1 ms 1024 KB Output is correct
14 Correct 1 ms 1152 KB Output is correct
15 Correct 1 ms 1152 KB Output is correct
16 Correct 1 ms 1024 KB Output is correct
17 Correct 2 ms 1152 KB Output is correct
18 Correct 2 ms 1152 KB Output is correct
19 Correct 1 ms 1152 KB Output is correct
20 Correct 1 ms 1152 KB Output is correct
21 Correct 1 ms 1024 KB Output is correct
22 Correct 1 ms 1152 KB Output is correct
23 Correct 2 ms 1152 KB Output is correct
24 Correct 2 ms 1312 KB Output is correct
25 Correct 2 ms 1152 KB Output is correct
26 Correct 1 ms 1152 KB Output is correct
27 Correct 1 ms 1152 KB Output is correct
28 Correct 2 ms 1152 KB Output is correct
29 Correct 3 ms 1472 KB Output is correct
30 Correct 2 ms 1280 KB Output is correct
31 Correct 2 ms 1408 KB Output is correct
32 Correct 2 ms 1280 KB Output is correct
33 Correct 4 ms 1600 KB Output is correct
34 Correct 5 ms 1600 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1024 KB Output is correct
2 Correct 1 ms 1024 KB Output is correct
3 Correct 1 ms 1024 KB Output is correct
4 Correct 1 ms 1024 KB Output is correct
5 Correct 1 ms 1024 KB Output is correct
6 Correct 1 ms 1024 KB Output is correct
7 Correct 1 ms 1024 KB Output is correct
8 Correct 1 ms 1024 KB Output is correct
9 Correct 1 ms 1024 KB Output is correct
10 Correct 1 ms 1024 KB Output is correct
11 Correct 1 ms 1152 KB Output is correct
12 Correct 1 ms 1152 KB Output is correct
13 Correct 1 ms 1152 KB Output is correct
14 Correct 1 ms 1152 KB Output is correct
15 Correct 1 ms 1152 KB Output is correct
16 Correct 1 ms 1024 KB Output is correct
17 Correct 2 ms 1152 KB Output is correct
18 Correct 1 ms 1152 KB Output is correct
19 Correct 1 ms 1152 KB Output is correct
20 Correct 1 ms 1152 KB Output is correct
21 Correct 1 ms 1024 KB Output is correct
22 Correct 1 ms 1152 KB Output is correct
23 Correct 1 ms 1152 KB Output is correct
24 Correct 2 ms 1152 KB Output is correct
25 Correct 2 ms 1152 KB Output is correct
26 Correct 1 ms 1152 KB Output is correct
27 Correct 1 ms 1152 KB Output is correct
28 Correct 2 ms 1152 KB Output is correct
29 Correct 3 ms 1472 KB Output is correct
30 Correct 1 ms 1280 KB Output is correct
31 Correct 2 ms 1408 KB Output is correct
32 Correct 2 ms 1280 KB Output is correct
33 Correct 4 ms 1600 KB Output is correct
34 Correct 5 ms 1600 KB Output is correct
35 Correct 10 ms 1792 KB Output is correct
36 Correct 3 ms 1280 KB Output is correct
37 Correct 11 ms 1792 KB Output is correct
38 Correct 13 ms 2048 KB Output is correct
39 Correct 14 ms 2048 KB Output is correct
40 Correct 13 ms 2048 KB Output is correct
41 Correct 13 ms 2048 KB Output is correct
42 Correct 5 ms 1664 KB Output is correct
43 Correct 6 ms 1664 KB Output is correct
44 Correct 6 ms 1700 KB Output is correct
45 Correct 13 ms 2016 KB Output is correct
46 Correct 12 ms 1988 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1024 KB Output is correct
2 Correct 1 ms 1024 KB Output is correct
3 Correct 1 ms 1024 KB Output is correct
4 Correct 1 ms 1024 KB Output is correct
5 Correct 1 ms 1024 KB Output is correct
6 Correct 1 ms 1024 KB Output is correct
7 Correct 1 ms 1024 KB Output is correct
8 Correct 1 ms 1024 KB Output is correct
9 Correct 1 ms 1024 KB Output is correct
10 Correct 1 ms 1024 KB Output is correct
11 Correct 1 ms 1152 KB Output is correct
12 Correct 1 ms 1152 KB Output is correct
13 Correct 1 ms 1152 KB Output is correct
14 Correct 1 ms 1152 KB Output is correct
15 Correct 1 ms 1152 KB Output is correct
16 Correct 1 ms 1024 KB Output is correct
17 Correct 2 ms 1152 KB Output is correct
18 Correct 1 ms 1152 KB Output is correct
19 Correct 1 ms 1152 KB Output is correct
20 Correct 1 ms 1152 KB Output is correct
21 Correct 1 ms 1024 KB Output is correct
22 Correct 1 ms 1152 KB Output is correct
23 Correct 1 ms 1152 KB Output is correct
24 Correct 2 ms 1280 KB Output is correct
25 Correct 2 ms 1280 KB Output is correct
26 Correct 1 ms 1152 KB Output is correct
27 Correct 1 ms 1152 KB Output is correct
28 Correct 2 ms 1152 KB Output is correct
29 Correct 3 ms 1472 KB Output is correct
30 Correct 2 ms 1280 KB Output is correct
31 Correct 2 ms 1408 KB Output is correct
32 Correct 2 ms 1280 KB Output is correct
33 Correct 4 ms 1600 KB Output is correct
34 Correct 5 ms 1600 KB Output is correct
35 Correct 11 ms 1792 KB Output is correct
36 Correct 3 ms 1280 KB Output is correct
37 Correct 11 ms 1792 KB Output is correct
38 Correct 14 ms 2048 KB Output is correct
39 Correct 13 ms 2048 KB Output is correct
40 Correct 16 ms 2048 KB Output is correct
41 Correct 14 ms 2048 KB Output is correct
42 Correct 5 ms 1664 KB Output is correct
43 Correct 5 ms 1664 KB Output is correct
44 Correct 6 ms 1700 KB Output is correct
45 Correct 12 ms 1988 KB Output is correct
46 Correct 14 ms 1988 KB Output is correct
47 Correct 40 ms 3576 KB Output is correct
48 Correct 7 ms 2048 KB Output is correct
49 Correct 8 ms 2048 KB Output is correct
50 Correct 5 ms 1920 KB Output is correct
51 Correct 36 ms 4088 KB Output is correct
52 Correct 46 ms 4088 KB Output is correct
53 Correct 19 ms 3324 KB Output is correct
54 Correct 3 ms 2044 KB Output is correct
55 Correct 3 ms 2044 KB Output is correct
56 Correct 10 ms 2688 KB Output is correct
57 Correct 349 ms 7920 KB Output is correct
58 Correct 9 ms 2496 KB Output is correct
59 Correct 12 ms 2496 KB Output is correct
60 Correct 18 ms 2496 KB Output is correct
61 Correct 12 ms 2496 KB Output is correct
62 Correct 15 ms 2688 KB Output is correct
63 Correct 50 ms 5364 KB Output is correct
64 Correct 49 ms 5364 KB Output is correct
65 Correct 68 ms 8428 KB Output is correct
66 Correct 146 ms 8436 KB Output is correct
67 Correct 142 ms 8432 KB Output is correct