oj.uz

답안 #750969

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
750969 2023-05-30T17:14:19 Z dsyz Voting Cities (NOI22_votingcity) C++17
100 / 100
 77 ms 8252 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define MAXN (5005)
int main() {
	ios_base::sync_with_stdio(false);cin.tie(0);
	ll N,E,K;
	cin>>N>>E>>K;
	vector<pair<ll,ll> > v[N];
	ll votingcities[K];
	for(ll i = 0;i < K;i++){
		cin>>votingcities[i];
	}
	for(ll i = 0;i < E;i++){
		ll a,b,c;
		cin>>a>>b>>c;
		v[b].push_back({a,c}); 
		//reverse the edges as we start from votingcities
	}
	priority_queue<pair<ll,pair<ll,ll> >,vector<pair<ll,pair<ll,ll> > >,greater<pair<ll,pair<ll,ll> > > > pq;
	ll dist[N][32]; //(1<<5) = 32 (11111 is 31 so 31 is max index)
	memset(dist,-1,sizeof(dist));
	for(ll k = 0;k < K;k++){
		ll x = votingcities[k];
		for(ll j = 0;j < 32;j++){
			dist[x][j] = 0;
			pq.push({dist[x][j],{x,j}});
		}
	}
	while(!pq.empty()){
		ll d = pq.top().first;
		ll x = pq.top().second.first;
		ll used = pq.top().second.second; //tickets used so far
		pq.pop();
		if(d != dist[x][used]){
			continue;
		}
		vector<ll> left;
		for(ll i = 0;i < 5;i++){
			if(!((1<<i) & used)){
				left.push_back(i);
			}
		}
		for(auto u : v[x]){
			if(dist[u.first][used] == -1 || dist[u.first][used] > dist[x][used] + u.second){
				dist[u.first][used] = dist[x][used] + u.second;
				pq.push({dist[u.first][used],{u.first,used}});
			}
			for(auto ticket : left){
				ll bitadd = 1<<ticket;
				if(dist[u.first][used + bitadd] == -1 || 
				dist[u.first][used + bitadd] > dist[x][used] + 
				(u.second - (((ticket + 1) * u.second) / 10))){
					dist[u.first][used + bitadd] = dist[x][used] + (u.second - (((ticket + 1) * u.second) / 10));
					pq.push({dist[u.first][used + bitadd],{u.first,used + bitadd}});
				}
			}
		}
	}
	ll Q;
	cin>>Q;
	for(ll q = 0;q < Q;q++){
		ll S;
		ll P[5];
		cin>>S>>P[0]>>P[1]>>P[2]>>P[3]>>P[4];
		ll minimum = 1e18;
		for(ll bitmask = 0;bitmask < (1<<5);bitmask++){
			//when bitmask = 0, it is 00000 (no tickets used)
			bool can = 1;
			for(ll i = 0;i < 5;i++){
				if(((1<<i) & bitmask) && P[i] == -1){
					can = 0;
				}
			}
			if(!can) continue;
			ll addcost = 0;
			for(ll i = 0;i < 5;i++){
				if((1<<i) & bitmask){
					addcost += P[i];
				}
			}
			if(dist[S][bitmask] == -1) continue;
			minimum = min(minimum,dist[S][bitmask] + addcost);
		}
		if(minimum >= 1e18) cout<<-1<<'\n';
		else cout<<minimum<<'\n';
	}
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 55 ms 3664 KB Output is correct
2 Correct 30 ms 1856 KB Output is correct
3 Correct 59 ms 3644 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct

Subtask #2
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 55 ms 3664 KB Output is correct
2 Correct 30 ms 1856 KB Output is correct
3 Correct 59 ms 3644 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 68 ms 3600 KB Output is correct
7 Correct 32 ms 1824 KB Output is correct
8 Correct 67 ms 3596 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct

Subtask #3
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 55 ms 3664 KB Output is correct
2 Correct 30 ms 1856 KB Output is correct
3 Correct 59 ms 3644 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 68 ms 3600 KB Output is correct
7 Correct 32 ms 1824 KB Output is correct
8 Correct 67 ms 3596 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 54 ms 5108 KB Output is correct
12 Correct 31 ms 1832 KB Output is correct
13 Correct 75 ms 3620 KB Output is correct
14 Correct 0 ms 284 KB Output is correct
15 Correct 1 ms 212 KB Output is correct

Subtask #4
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 55 ms 3664 KB Output is correct
2 Correct 30 ms 1856 KB Output is correct
3 Correct 59 ms 3644 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 5 ms 1876 KB Output is correct
7 Correct 30 ms 1852 KB Output is correct
8 Correct 69 ms 3640 KB Output is correct

Subtask #5
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 55 ms 3664 KB Output is correct
2 Correct 30 ms 1856 KB Output is correct
3 Correct 59 ms 3644 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 68 ms 3600 KB Output is correct
7 Correct 32 ms 1824 KB Output is correct
8 Correct 67 ms 3596 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 5 ms 1876 KB Output is correct
12 Correct 30 ms 1852 KB Output is correct
13 Correct 69 ms 3640 KB Output is correct
14 Correct 57 ms 3532 KB Output is correct
15 Correct 30 ms 1856 KB Output is correct
16 Correct 71 ms 3604 KB Output is correct

Subtask #6
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 70 ms 5128 KB Output is correct
2 Correct 61 ms 5176 KB Output is correct
3 Correct 47 ms 2308 KB Output is correct
4 Correct 73 ms 3532 KB Output is correct

Subtask #7
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 620 KB Output is correct
2 Correct 3 ms 664 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 2 ms 468 KB Output is correct
5 Correct 2 ms 464 KB Output is correct
6 Correct 2 ms 340 KB Output is correct
7 Correct 3 ms 596 KB Output is correct
8 Correct 3 ms 660 KB Output is correct

Subtask #8
50.0 / 50.0

# 결과 실행 시간 메모리 Grader output
1 Correct 55 ms 3664 KB Output is correct
2 Correct 30 ms 1856 KB Output is correct
3 Correct 59 ms 3644 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 68 ms 3600 KB Output is correct
7 Correct 32 ms 1824 KB Output is correct
8 Correct 67 ms 3596 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 54 ms 5108 KB Output is correct
12 Correct 31 ms 1832 KB Output is correct
13 Correct 75 ms 3620 KB Output is correct
14 Correct 0 ms 284 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 5 ms 1876 KB Output is correct
17 Correct 30 ms 1852 KB Output is correct
18 Correct 69 ms 3640 KB Output is correct
19 Correct 57 ms 3532 KB Output is correct
20 Correct 30 ms 1856 KB Output is correct
21 Correct 71 ms 3604 KB Output is correct
22 Correct 70 ms 5128 KB Output is correct
23 Correct 61 ms 5176 KB Output is correct
24 Correct 47 ms 2308 KB Output is correct
25 Correct 73 ms 3532 KB Output is correct
26 Correct 4 ms 620 KB Output is correct
27 Correct 3 ms 664 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 2 ms 468 KB Output is correct
30 Correct 2 ms 464 KB Output is correct
31 Correct 2 ms 340 KB Output is correct
32 Correct 3 ms 596 KB Output is correct
33 Correct 3 ms 660 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 1 ms 212 KB Output is correct
37 Correct 77 ms 5128 KB Output is correct
38 Correct 55 ms 8192 KB Output is correct
39 Correct 70 ms 3644 KB Output is correct
40 Correct 1 ms 1620 KB Output is correct
41 Correct 47 ms 8028 KB Output is correct
42 Correct 70 ms 5112 KB Output is correct
43 Correct 58 ms 8252 KB Output is correct
44 Correct 70 ms 3608 KB Output is correct
45 Correct 46 ms 2132 KB Output is correct