Submission #28083

#	Time	Username	Problem	Language	Result	Execution time	Memory
28083		noobprogrammer	Towns (IOI15_towns)	C++14	0 / 100	186 ms	25504 KiB

towns

#include "towns.h"
#include <bits/stdc++.h>
using namespace std ;
#define vi vector<int>

int from[105] , to[105] ;
vi len[1000010] ;

int hubDistance(int n, int sub) {
	int mdist = -1 , opt = -1 , tmp ; 
	for(int i=0;i<n;i++){
		tmp = getDistance(0 , i) ;
		if(mdist < tmp){
			mdist = tmp ;
			opt = i ;
		}
	}
	mdist = -1 ;
	int nxt = -1 ;
	for(int i=0;i<n;i++){
		from[i] = getDistance(opt , i) ;
		if(from[i] > mdist){
			mdist = from[i] ;
			nxt = i;
		}
	}
	for(int i=0;i<n;i++) to[i] = getDistance(nxt , i ) ;
	for(int i=1;i<=1000000;i++) len[i].clear() ;
	int res = 1e9 ; 
	for(int i=0;i<n;i++){
		if(i == nxt ||i == opt) continue ;
		int ok = (from[i] + to[i] - mdist)/2 ;
		len[ok].push_back(i) ;
		res = min(res , max( mdist - ok , ok ) ) ;
	}
	if(sub <= 2) return res ;
}

Compilation message (stderr)

towns.cpp: In function 'int hubDistance(int, int)':
towns.cpp:37:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^

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