Submission #590891

#	Time	Username	Problem	Language	Result	Execution time	Memory
590891		FatihSolak	Towns (IOI15_towns)	C++17	0 / 100	13 ms	1108 KiB

towns

#include "towns.h"
#include <bits/stdc++.h>
#define N 200
using namespace std;
int dist[N][N];
int get(int i,int j){
	if(i > j)swap(i,j);
	if(i == j)return 0;
	if(dist[i][j])return dist[i][j];
	return dist[i][j] = getDistance(i,j);
}
int hubDistance(int n, int sub) {
	int R = getDistance(0,1);
	int root = 0;
	for(int i = 1;i<n;i++){
		if(get(0,i) > get(0,root))
			root = i;
	}
	int deepest = 0;
	for(int i = 1;i<n;i++){
		if(get(root,i) > get(root,deepest))
			deepest = i;
	}
	set<int> depths;
	for(int i = 0;i<n;i++){
		depths.insert( (get(root,deepest) + get(root,i)  -get(deepest,i) )/2);
	}
	int mini = 1e9;
	for(auto u:depths){
		mini = min(mini,max(u,get(root,deepest)-u));
	}
	return mini;
}

Compilation message (stderr)

towns.cpp: In function 'int hubDistance(int, int)':
towns.cpp:13:6: warning: unused variable 'R' [-Wunused-variable]
   13 |  int R = getDistance(0,1);
      |      ^
towns.cpp:12:28: warning: unused parameter 'sub' [-Wunused-parameter]
   12 | int hubDistance(int n, int sub) {
      |                        ~~~~^~~

• Subtask 1: 0 / 13
• Subtask 2: 0 / 12
• Subtask 3: 0 / 13
• Subtask 4: 0 / 10
• Subtask 5: 0 / 13
• Subtask 6: 0 / 39