Submission #1167131

#	Time	Username	Problem	Language	Result	Execution time	Memory
1167131		shraefkt	Circle Passing (EGOI24_circlepassing)	C++20	56 / 100	2094 ms	3280 KiB

Main

#include <bits/stdc++.h>
using namespace std;
#define int long long
const int MAX = 500007;
const int INF = LLONG_MAX;
int N;
int distance(int x, int y) {
	int dist = abs(x-y);
	dist = min(dist, 2*N-dist);
	return dist;
}
int32_t main() {
	ios::sync_with_stdio(0);
	cin.tie(0);
	int M,Q;
	cin >> N >> M >> Q;
	int best_friend[M]; //other best_friend is +N
	for (int i=0;i<M;i++) {
		cin  >> best_friend[i];
	}
	
	int bridge_is_totally_useless_radius = (N+1)/2;
	int bridge_is_useless_radius = N/2-1;
	int x, y;
	for (int i=0;i<Q;i++) {
		cin >> x >> y;
		if (distance(x,y)<=bridge_is_totally_useless_radius) {
			cout << distance(x,y) << endl;
		} else {
			int shortest_path = distance(x,y);
			for (int i=0;i<M;i++) {
				if (distance(best_friend[i],x)>distance(best_friend[i]+N,x)) {
					shortest_path = min(distance(y,best_friend[i]) + 1 + distance(x,best_friend[i] + N), shortest_path);
				} else {
					shortest_path = min(distance(x,best_friend[i]) + 1 + distance(y,best_friend[i] + N),shortest_path);
				}
			}
			cout << shortest_path << endl;
		}
		
		
	}
	
	
	
	
}

• Subtask 1: 14 / 14
• Subtask 2: 20 / 20
• Subtask 3: 22 / 22
• Subtask 4: 0 / 17
• Subtask 5: 0 / 27