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Submission #28085

# Submission time Handle Problem Language Result Execution time Memory
28085 2017-07-15T10:19:30 Z noobprogrammer Towns (IOI15_towns) C++14
25 / 100
 193 ms 25504 KB 
#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) ;
		int ln = from[i] - ok ; 
		res = min(res , max( mdist - ln , ln ) ) ;
	}
	if(sub <= 2) return res ;
}

Compilation message

towns.cpp: In function 'int hubDistance(int, int)':
towns.cpp:38:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 53 ms 25504 KB Output is correct
2 Correct 103 ms 25504 KB Output is correct
3 Correct 9 ms 25504 KB Output is correct
4 Correct 116 ms 25504 KB Output is correct
5 Correct 119 ms 25504 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 109 ms 25504 KB Output is correct
2 Correct 99 ms 25504 KB Output is correct
3 Correct 99 ms 25504 KB Output is correct
4 Correct 116 ms 25504 KB Output is correct

Subtask #3
0 / 13.0

# Verdict Execution time Memory Grader output
1 Incorrect 109 ms 25504 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 193 ms 25504 KB Output isn't correct

Subtask #5
0 / 13.0

# Verdict Execution time Memory Grader output
1 Incorrect 109 ms 25504 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 39.0

# Verdict Execution time Memory Grader output
1 Incorrect 96 ms 25504 KB Output isn't correct
2 Halted 0 ms 0 KB -