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Submission #969836

# Submission time Handle Problem Language Result Execution time Memory
969836 2024-04-25T16:18:55 Z pcc Jakarta Skyscrapers (APIO15_skyscraper) C++17
22 / 100
 93 ms 140624 KB 
#include <bits/stdc++.h>
using namespace std;

#pragma GCC target("avx2,popcnt,sse4")
#pragma GCC optimize("O3,unroll-loops")
#define ll long long
#define pll pair<ll,ll>
#define pii pair<short,short>
#define fs first
#define sc second
#define tlll tuple<ll,ll,ll>

const int inf = 1e9+10;
const int mxn = 3e4+10;
const int mxe = mxn*sqrt(mxn)*2.33;
const int mxv = mxn*sqrt(mxn)*2.1;

map<pii,vector<int>> mp;
int N,M;
int ecnt,vcnt;
int to[mxe],nid[mxe];
bitset<mxv> wei;
int head[mxv];
int dist[mxv];
int S,T;
int ts;

void add_edge(int a,int b,int w){
	ecnt++;
	assert(ecnt<mxe);
	nid[ecnt] = head[a];
	to[ecnt] = b;
	wei[ecnt] = w;
	head[a] = ecnt;
}

bitset<mxv> done;
deque<int> dq;

void BFS(){
	dq.resize(mxv*2);
	fill(dist,dist+mxv,inf);
	dist[S] = 0;
	dq.push_back(S);
	while(!dq.empty()){
		int now = dq.front();
		dq.pop_front();
		if(done[now])continue;
		done[now] = true;
		if(now == T)return;
		for(int eid = head[now];eid;eid = nid[eid]){
			int nxt = to[eid],w = wei[eid];
			//cout<<now<<' '<<nxt<<":"<<dist[now]+w<<' '<<dist[nxt]<<endl;
			if(!w){
				if(dist[nxt]>dist[now]){
					dist[nxt] = dist[now];
					dq.push_front(nxt);
				}
			}
			else{
				if(dist[nxt]>dist[now]+w){
					dist[nxt] = dist[now]+w;
					dq.push_back(nxt);
				}
			}
		}
	}
	return;
}

int main(){
	ts = clock();
	ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	cin>>N>>M;
	for(int i = 0;i<M;i++){
		pii tmp;
		cin>>tmp.fs>>tmp.sc;
		mp[pii(tmp.sc,tmp.fs%tmp.sc)].push_back(tmp.fs);
		if(!i)S = tmp.fs;
		if(i == 1)T = tmp.fs;
	}
	vcnt = N-1;
	for(auto &i:mp){
		sort(i.sc.rbegin(),i.sc.rend());
		for(int j = i.fs.sc;j<N;j+=i.fs.fs){
			vcnt++;
			assert(vcnt<mxv);
			add_edge(vcnt,j,0);
			while(!i.sc.empty()&&i.sc.back() == j){
				add_edge(i.sc.back(),vcnt,0);
				i.sc.pop_back();
			}
			if(j != i.fs.sc){
				add_edge(vcnt-1,vcnt,1);
				add_edge(vcnt,vcnt-1,1);
			}
		}
	}
	BFS();
	cout<<(dist[T]>=inf?-1:dist[T])<<'\n';
	return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 79 ms 137808 KB Output is correct
2 Correct 52 ms 137808 KB Output is correct
3 Correct 54 ms 137732 KB Output is correct
4 Correct 80 ms 137820 KB Output is correct
5 Correct 77 ms 137808 KB Output is correct
6 Correct 84 ms 137924 KB Output is correct
7 Correct 80 ms 137812 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 89 ms 138068 KB Output is correct
2 Correct 55 ms 137808 KB Output is correct
3 Correct 53 ms 137812 KB Output is correct
4 Correct 78 ms 137924 KB Output is correct
5 Correct 78 ms 137812 KB Output is correct
6 Correct 79 ms 137736 KB Output is correct
7 Correct 78 ms 137812 KB Output is correct
8 Correct 93 ms 137808 KB Output is correct
9 Correct 82 ms 137812 KB Output is correct
10 Correct 84 ms 137860 KB Output is correct
11 Correct 85 ms 137912 KB Output is correct
12 Correct 78 ms 137808 KB Output is correct
13 Correct 80 ms 137844 KB Output is correct
14 Correct 79 ms 138020 KB Output is correct
15 Correct 82 ms 138064 KB Output is correct

Subtask #3
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 79 ms 137924 KB Output is correct
2 Correct 56 ms 137808 KB Output is correct
3 Correct 60 ms 137812 KB Output is correct
4 Correct 78 ms 137808 KB Output is correct
5 Correct 78 ms 137808 KB Output is correct
6 Correct 79 ms 137808 KB Output is correct
7 Correct 78 ms 137812 KB Output is correct
8 Correct 79 ms 137864 KB Output is correct
9 Correct 79 ms 137692 KB Output is correct
10 Correct 79 ms 137812 KB Output is correct
11 Correct 78 ms 138064 KB Output is correct
12 Correct 78 ms 137840 KB Output is correct
13 Correct 79 ms 137808 KB Output is correct
14 Correct 82 ms 138068 KB Output is correct
15 Correct 80 ms 138068 KB Output is correct
16 Correct 78 ms 137808 KB Output is correct
17 Correct 78 ms 140112 KB Output is correct
18 Correct 79 ms 140112 KB Output is correct
19 Correct 81 ms 137812 KB Output is correct
20 Correct 79 ms 137736 KB Output is correct
21 Correct 91 ms 137812 KB Output is correct
22 Correct 86 ms 137816 KB Output is correct
23 Correct 79 ms 139864 KB Output is correct
24 Correct 87 ms 140116 KB Output is correct
25 Correct 79 ms 140164 KB Output is correct
26 Correct 79 ms 139856 KB Output is correct
27 Correct 78 ms 139868 KB Output is correct
28 Incorrect 54 ms 140116 KB Output isn't correct
29 Halted 0 ms 0 KB -

Subtask #4
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 87 ms 137728 KB Output is correct
2 Correct 53 ms 137812 KB Output is correct
3 Correct 54 ms 137764 KB Output is correct
4 Correct 77 ms 137808 KB Output is correct
5 Correct 81 ms 137696 KB Output is correct
6 Correct 80 ms 137808 KB Output is correct
7 Correct 82 ms 137916 KB Output is correct
8 Correct 86 ms 137924 KB Output is correct
9 Correct 85 ms 137812 KB Output is correct
10 Correct 78 ms 137812 KB Output is correct
11 Correct 78 ms 138064 KB Output is correct
12 Correct 80 ms 137812 KB Output is correct
13 Correct 84 ms 137936 KB Output is correct
14 Correct 86 ms 138068 KB Output is correct
15 Correct 85 ms 138068 KB Output is correct
16 Correct 85 ms 138020 KB Output is correct
17 Correct 85 ms 140116 KB Output is correct
18 Correct 81 ms 140020 KB Output is correct
19 Correct 79 ms 137812 KB Output is correct
20 Correct 78 ms 137812 KB Output is correct
21 Correct 91 ms 137956 KB Output is correct
22 Correct 79 ms 137812 KB Output is correct
23 Correct 84 ms 140112 KB Output is correct
24 Correct 80 ms 140112 KB Output is correct
25 Correct 82 ms 140116 KB Output is correct
26 Correct 84 ms 139860 KB Output is correct
27 Correct 79 ms 140056 KB Output is correct
28 Incorrect 55 ms 140116 KB Output isn't correct
29 Halted 0 ms 0 KB -

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 80 ms 137812 KB Output is correct
2 Correct 54 ms 137808 KB Output is correct
3 Correct 54 ms 137812 KB Output is correct
4 Correct 92 ms 137796 KB Output is correct
5 Correct 79 ms 137808 KB Output is correct
6 Correct 85 ms 138024 KB Output is correct
7 Correct 77 ms 137808 KB Output is correct
8 Correct 83 ms 137812 KB Output is correct
9 Correct 82 ms 137864 KB Output is correct
10 Correct 82 ms 137808 KB Output is correct
11 Correct 81 ms 138100 KB Output is correct
12 Correct 79 ms 137844 KB Output is correct
13 Correct 79 ms 137812 KB Output is correct
14 Correct 80 ms 138068 KB Output is correct
15 Correct 84 ms 138064 KB Output is correct
16 Correct 80 ms 137988 KB Output is correct
17 Correct 80 ms 140116 KB Output is correct
18 Correct 80 ms 140116 KB Output is correct
19 Correct 78 ms 138012 KB Output is correct
20 Correct 79 ms 137904 KB Output is correct
21 Correct 78 ms 137808 KB Output is correct
22 Correct 81 ms 137928 KB Output is correct
23 Correct 78 ms 139856 KB Output is correct
24 Correct 80 ms 140216 KB Output is correct
25 Correct 79 ms 140116 KB Output is correct
26 Correct 90 ms 139896 KB Output is correct
27 Correct 87 ms 139860 KB Output is correct
28 Incorrect 59 ms 140624 KB Output isn't correct
29 Halted 0 ms 0 KB -