Submission #1264936

#	Time	Username	Problem	Language	Result	Execution time	Memory
1264936		PlayVoltz	철도 요금 (JOI16_ho_t3)	C++20	100 / 100	173 ms	25528 KiB

2016_ho_t3

#include <cstdio>
#include <stdio.h>
#include <stdbool.h>
#include <iostream>
#include <map>
#include <vector>
#include <climits>
#include <stack>
#include <string>
#include <queue>
#include <algorithm>
#include <set>
#include <unordered_set>
#include <unordered_map>
#include <cmath>
#include <cctype>
#include <bitset>
#include <iomanip>
#include <cstring>
#include <numeric>
#include <cassert>
using namespace std;
 
#define int long long
#define pii pair<int, int>
#define mp make_pair
#define pb push_back
#define fi first
#define se second

int32_t main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	int n, m, q, a, b;
	cin>>n>>m>>q;
	vector<int> vect(m, LLONG_MAX/2), query(q), ans(q, 0);
	vector<vector<pii> > graph(n+1);
	for (int i=0; i<m; ++i){
		cin>>a>>b;
		graph[a].pb(mp(b, i));
		graph[b].pb(mp(a, i));
	}
	for (int i=0; i<q; ++i)cin>>query[i], vect[query[i]-1]=i;
	priority_queue<pair<pii, int>, vector<pair<pii, int> >, greater<pair<pii, int> > > pq;
	vector<pii> dj(n+1, mp(LLONG_MAX/2, LLONG_MAX/2));
	pq.push(mp(mp(0, LLONG_MIN/2), 1));
	while (pq.size()){
		pii d=pq.top().fi;
		int node=pq.top().se;
		pq.pop();
		if (d>=dj[node])continue;
		dj[node]=d;
		if (-d.se<q)++ans[-d.se];
		for (auto num:graph[node])pq.push(mp(mp(d.fi+1, max(d.se, -vect[num.se])), num.fi));
	}
	for (int i=0, sum=0; i<q; ++i)sum+=ans[i], cout<<sum<<"\n";
}

• Subtask 1: 12 / 12
• Subtask 2: 14 / 14
• Subtask 3: 35 / 35
• Subtask 4: 39 / 39