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Submission #969799

# Submission time Handle Problem Language Result Execution time Memory
969799 2024-04-25T15:47:22 Z pcc Jakarta Skyscrapers (APIO15_skyscraper) C++17
22 / 100
 66 ms 133248 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()){
		if(dist[T] != inf)break;
		auto [d,now] = dq.front();
		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 29 ms 65504 KB Output is correct
2 Correct 11 ms 65628 KB Output is correct
3 Correct 9 ms 65372 KB Output is correct
4 Correct 9 ms 65372 KB Output is correct
5 Correct 11 ms 65432 KB Output is correct
6 Correct 9 ms 65372 KB Output is correct
7 Correct 9 ms 65372 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 65368 KB Output is correct
2 Correct 9 ms 65372 KB Output is correct
3 Correct 11 ms 65524 KB Output is correct
4 Correct 9 ms 65368 KB Output is correct
5 Correct 9 ms 65372 KB Output is correct
6 Correct 9 ms 65372 KB Output is correct
7 Correct 9 ms 65476 KB Output is correct
8 Correct 9 ms 65368 KB Output is correct
9 Correct 9 ms 65372 KB Output is correct
10 Correct 9 ms 65544 KB Output is correct
11 Correct 10 ms 65664 KB Output is correct
12 Correct 9 ms 65628 KB Output is correct
13 Correct 9 ms 65372 KB Output is correct
14 Correct 10 ms 65628 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 65448 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 65436 KB Output is correct
6 Correct 9 ms 65368 KB Output is correct
7 Correct 10 ms 65368 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 65684 KB Output is correct
12 Correct 9 ms 65628 KB Output is correct
13 Correct 9 ms 65372 KB Output is correct
14 Correct 10 ms 65628 KB Output is correct
15 Correct 10 ms 65628 KB Output is correct
16 Correct 9 ms 65628 KB Output is correct
17 Correct 10 ms 65624 KB Output is correct
18 Correct 10 ms 65652 KB Output is correct
19 Correct 10 ms 65628 KB Output is correct
20 Correct 9 ms 65544 KB Output is correct
21 Correct 10 ms 65628 KB Output is correct
22 Correct 9 ms 65528 KB Output is correct
23 Correct 10 ms 65628 KB Output is correct
24 Correct 10 ms 65884 KB Output is correct
25 Correct 10 ms 65628 KB Output is correct
26 Correct 10 ms 65540 KB Output is correct
27 Correct 9 ms 65524 KB Output is correct
28 Correct 10 ms 65884 KB Output is correct
29 Runtime error 66 ms 133232 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 65372 KB Output is correct
3 Correct 9 ms 65372 KB Output is correct
4 Correct 9 ms 65492 KB Output is correct
5 Correct 11 ms 65372 KB Output is correct
6 Correct 9 ms 65372 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 65624 KB Output is correct
14 Correct 10 ms 65684 KB Output is correct
15 Correct 10 ms 65624 KB Output is correct
16 Correct 9 ms 65628 KB Output is correct
17 Correct 10 ms 65720 KB Output is correct
18 Correct 9 ms 65644 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 65628 KB Output is correct
22 Correct 9 ms 65628 KB Output is correct
23 Correct 9 ms 65620 KB Output is correct
24 Correct 11 ms 65628 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 65572 KB Output is correct
28 Correct 10 ms 65884 KB Output is correct
29 Runtime error 64 ms 133184 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 65368 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 65372 KB Output is correct
5 Correct 9 ms 65372 KB Output is correct
6 Correct 9 ms 65372 KB Output is correct
7 Correct 9 ms 65516 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 65528 KB Output is correct
11 Correct 9 ms 65660 KB Output is correct
12 Correct 9 ms 65536 KB Output is correct
13 Correct 9 ms 65460 KB Output is correct
14 Correct 10 ms 65628 KB Output is correct
15 Correct 10 ms 65624 KB Output is correct
16 Correct 10 ms 65536 KB Output is correct
17 Correct 10 ms 65628 KB Output is correct
18 Correct 9 ms 65600 KB Output is correct
19 Correct 10 ms 65500 KB Output is correct
20 Correct 9 ms 65628 KB Output is correct
21 Correct 9 ms 65628 KB Output is correct
22 Correct 9 ms 65628 KB Output is correct
23 Correct 9 ms 65628 KB Output is correct
24 Correct 11 ms 65628 KB Output is correct
25 Correct 10 ms 65700 KB Output is correct
26 Correct 9 ms 65540 KB Output is correct
27 Correct 9 ms 65628 KB Output is correct
28 Correct 11 ms 65884 KB Output is correct
29 Runtime error 65 ms 133248 KB Execution killed with signal 11
30 Halted 0 ms 0 KB -