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Submission #969800

# Submission time Handle Problem Language Result Execution time Memory
969800 2024-04-25T15:47:55 Z pcc Jakarta Skyscrapers (APIO15_skyscraper) C++17
22 / 100
 68 ms 133500 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<int,int>
#define fs first
#define sc second
#define tlll tuple<ll,ll,ll>


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

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

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

deque<pii> dq;
void BFS(){
	fill(dist,dist+mxv,inf);
	dist[S] = 0;
	dq.push_back(pii(0,S));
	while(!dq.empty()){
		auto [d,now] = dq.front();
		if(now == T)break;
		dq.pop_front();
		if(d != dist[now])continue;
		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(pii(dist[nxt],nxt));
				}
			}
			else{
				if(dist[nxt]>dist[now]+w){
					dist[nxt] = dist[now]+w;
					dq.push_back(pii(dist[nxt],nxt));
				}
			}
		}
	}
	return;
}


int main(){
	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++;
			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 23 ms 65372 KB Output is correct
2 Correct 9 ms 65372 KB Output is correct
3 Correct 10 ms 65408 KB Output is correct
4 Correct 9 ms 65372 KB Output is correct
5 Correct 9 ms 65492 KB Output is correct
6 Correct 10 ms 65532 KB Output is correct
7 Correct 11 ms 65432 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 65372 KB Output is correct
2 Correct 8 ms 65372 KB Output is correct
3 Correct 10 ms 65508 KB Output is correct
4 Correct 9 ms 65372 KB Output is correct
5 Correct 9 ms 65372 KB Output is correct
6 Correct 9 ms 65464 KB Output is correct
7 Correct 9 ms 65372 KB Output is correct
8 Correct 9 ms 65372 KB Output is correct
9 Correct 9 ms 65372 KB Output is correct
10 Correct 9 ms 65628 KB Output is correct
11 Correct 10 ms 65628 KB Output is correct
12 Correct 9 ms 65628 KB Output is correct
13 Correct 9 ms 65628 KB Output is correct
14 Correct 10 ms 65624 KB Output is correct
15 Correct 10 ms 65628 KB Output is correct

Subtask #3
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 65372 KB Output is correct
2 Correct 9 ms 65372 KB Output is correct
3 Correct 9 ms 65372 KB Output is correct
4 Correct 9 ms 65368 KB Output is correct
5 Correct 9 ms 65372 KB Output is correct
6 Correct 10 ms 65512 KB Output is correct
7 Correct 9 ms 65464 KB Output is correct
8 Correct 10 ms 65372 KB Output is correct
9 Correct 9 ms 65368 KB Output is correct
10 Correct 10 ms 65628 KB Output is correct
11 Correct 10 ms 65628 KB Output is correct
12 Correct 9 ms 65628 KB Output is correct
13 Correct 9 ms 65500 KB Output is correct
14 Correct 10 ms 65624 KB Output is correct
15 Correct 10 ms 65712 KB Output is correct
16 Correct 9 ms 65628 KB Output is correct
17 Correct 10 ms 65628 KB Output is correct
18 Correct 10 ms 65628 KB Output is correct
19 Correct 9 ms 65628 KB Output is correct
20 Correct 9 ms 65628 KB Output is correct
21 Correct 10 ms 65568 KB Output is correct
22 Correct 9 ms 65624 KB Output is correct
23 Correct 9 ms 65628 KB Output is correct
24 Correct 10 ms 65872 KB Output is correct
25 Correct 10 ms 65628 KB Output is correct
26 Correct 9 ms 65628 KB Output is correct
27 Correct 9 ms 65628 KB Output is correct
28 Correct 11 ms 65756 KB Output is correct
29 Runtime error 68 ms 133328 KB Execution killed with signal 11
30 Halted 0 ms 0 KB -

Subtask #4
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 65372 KB Output is correct
2 Correct 9 ms 65476 KB Output is correct
3 Correct 9 ms 65372 KB Output is correct
4 Correct 9 ms 65368 KB Output is correct
5 Correct 9 ms 65372 KB Output is correct
6 Correct 10 ms 65456 KB Output is correct
7 Correct 9 ms 65372 KB Output is correct
8 Correct 9 ms 65372 KB Output is correct
9 Correct 9 ms 65372 KB Output is correct
10 Correct 9 ms 65524 KB Output is correct
11 Correct 10 ms 65628 KB Output is correct
12 Correct 9 ms 65512 KB Output is correct
13 Correct 9 ms 65628 KB Output is correct
14 Correct 10 ms 65780 KB Output is correct
15 Correct 10 ms 65624 KB Output is correct
16 Correct 10 ms 65628 KB Output is correct
17 Correct 10 ms 65772 KB Output is correct
18 Correct 10 ms 65596 KB Output is correct
19 Correct 9 ms 65628 KB Output is correct
20 Correct 9 ms 65628 KB Output is correct
21 Correct 9 ms 65624 KB Output is correct
22 Correct 9 ms 65624 KB Output is correct
23 Correct 10 ms 65880 KB Output is correct
24 Correct 11 ms 65752 KB Output is correct
25 Correct 10 ms 65628 KB Output is correct
26 Correct 9 ms 65624 KB Output is correct
27 Correct 10 ms 65628 KB Output is correct
28 Correct 11 ms 65884 KB Output is correct
29 Runtime error 66 ms 133216 KB Execution killed with signal 11
30 Halted 0 ms 0 KB -

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 65372 KB Output is correct
2 Correct 9 ms 65444 KB Output is correct
3 Correct 9 ms 65372 KB Output is correct
4 Correct 9 ms 65372 KB Output is correct
5 Correct 9 ms 65372 KB Output is correct
6 Correct 9 ms 65416 KB Output is correct
7 Correct 9 ms 65372 KB Output is correct
8 Correct 10 ms 65372 KB Output is correct
9 Correct 9 ms 65372 KB Output is correct
10 Correct 10 ms 65628 KB Output is correct
11 Correct 11 ms 65772 KB Output is correct
12 Correct 9 ms 65372 KB Output is correct
13 Correct 11 ms 65628 KB Output is correct
14 Correct 10 ms 65628 KB Output is correct
15 Correct 10 ms 65636 KB Output is correct
16 Correct 9 ms 65872 KB Output is correct
17 Correct 10 ms 65628 KB Output is correct
18 Correct 10 ms 65628 KB Output is correct
19 Correct 10 ms 65512 KB Output is correct
20 Correct 9 ms 65628 KB Output is correct
21 Correct 10 ms 65628 KB Output is correct
22 Correct 10 ms 65628 KB Output is correct
23 Correct 10 ms 65628 KB Output is correct
24 Correct 10 ms 65696 KB Output is correct
25 Correct 10 ms 65628 KB Output is correct
26 Correct 9 ms 65628 KB Output is correct
27 Correct 9 ms 65532 KB Output is correct
28 Correct 10 ms 65884 KB Output is correct
29 Runtime error 67 ms 133500 KB Execution killed with signal 11
30 Halted 0 ms 0 KB -