Submission #1313036

#	Time	Username	Problem	Language	Result	Execution time	Memory
1313036		lev	Voting Cities (NOI22_votingcity)	C++20	100 / 100	769 ms	4488 KiB

Main

#include <bits/stdc++.h>
#define int long long
#define fi first
#define se second
#define pii pair<int, int>
#define all(a) a.begin(), a.end()
using namespace std;

#ifdef LOCAL
#include "C:\Users\Dell\Downloads\template\template\icpc-notebook\Utilities\debug.h"
#else
#define debug(...) 42
#endif

const int mn = 5e3 + 5, mod = 1e9 + 7, inf = 2e18;

int n, m, k, q, t[mn], on[mn], d[mn][1 << 5];
vector <pii> a[mn];

void dijsktra(int s, vector <int>& p){
	for(int i = 1; i <= n; i++){
		for(int j = 0; j < 32; j++){
			d[i][j] = inf;
		}
	}
	priority_queue <array<int, 3>, vector<array<int, 3>>, greater<array<int, 3>> > pq;

	for(int mask = 0; mask < 32; mask++){
		bool ok = true;
		d[s][mask] = 0;
		for(int i = 0; i < 5; i++){
			if(mask & (1 << i)){
				d[s][mask] += p[i];
				if(p[i] == -1) ok = false;
			}
		}
		if(ok) pq.push({d[s][mask], s, mask});
		else d[s][mask] = inf;
	}

	while(pq.size()){
		auto [c, u, mask] = pq.top(); pq.pop();
		if(c > d[u][mask]) continue;	
		if(on[u]){
			cout << c << '\n';
			return;
		}

		for(auto [v, w] : a[u]){
			if(d[v][mask] > d[u][mask] + w){
				d[v][mask] = d[u][mask] + w;
				pq.push({d[v][mask], v, mask}); 
			}
			for(int i = 0; i < 5; i++){
				if(mask & (1 << i) && p[i] != -1){
					int new_mask = mask ^ (1 << i), new_w = w * (9 - i) / 10;
					if(d[v][new_mask] > d[u][mask] + new_w){
						d[v][new_mask] = d[u][mask] + new_w;
						pq.push({d[v][new_mask], v, new_mask});
					}
				}
			}
		}
	}

	cout << -1 << '\n';
}

void solve() {
    cin >> n >> m >> k;
    for(int i = 1; i <= k; i++){
    	cin >> t[i];
    	t[i] ++;
    	on[t[i]] = 1;
    }
    for(int i = 1; i <= m; i++){
    	int u, v, w; cin >> u >> v >> w;
    	u ++, v ++;
    	a[u].push_back({v, w});
    }
    cin >> q;
    while(q--){
    	int s; cin >> s;
    	s ++;
    	vector <int> p(5); for(int i = 0; i < 5; i++) cin >> p[i];
    	dijsktra(s, p);
    }
}

signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr); cout.tie(nullptr);
    #define task "Kawabata"
    if (fopen(task".INP", "r")) {
        freopen(task".INP", "r", stdin);
        freopen(task".OUT", "w", stdout);
    }
    int t = 1;
    // cin >> t;
    while (t--) solve();
    return 0;
}
// Don't wanna lose anymore T_T
// Never let me go - Kazuo Ishiguro

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:95:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   95 |         freopen(task".INP", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:96:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   96 |         freopen(task".OUT", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 5 / 5
• Subtask 4: 5 / 5
• Subtask 5: 5 / 5
• Subtask 6: 10 / 10
• Subtask 7: 15 / 15
• Subtask 8: 50 / 50