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Submission #52110

# Submission time Handle Problem Language Result Execution time Memory
52110 2018-06-23T23:53:56 Z spencercompton Towns (IOI15_towns) C++17
25 / 100
 28 ms 644 KB 
#include "towns.h"
#include <bits/stdc++.h>
using namespace std;
int hubDistance(int N, int sub) {

	pair<int, int > best = make_pair(-1,-1);
	//first is dist, second is ind
	for(int i = 1; i<N; i++){
		pair<int, int> now = make_pair(getDistance(0,i),i);
		best = max(best,now);
	}
	int first = best.second;
	best = make_pair(-1,-1);
	int A[N];
	int B[N];
	for(int i = 0; i<N; i++){
		if(i==first){
			continue;
		}
		pair<int, int> now = make_pair(getDistance(first,i),i);
		A[i] = now.first;
		best = max(best,now);
	}
	int second = best.second;
	int diameter = getDistance(first,second);
	int inf = 100000000;
	int ans = inf;
	for(int i = 0; i<N; i++){
		if(i==first || i==second){
			continue;
		}
		B[i] = getDistance(i,second);
		int x = (A[i]+B[i]-diameter)/2;
		int a = A[i]-x;
		int b = B[i]-x;
		ans = min(ans,max(a,b));
	}
	return ans;
}

Compilation message

towns.cpp: In function 'int hubDistance(int, int)':
towns.cpp:4:28: warning: unused parameter 'sub' [-Wunused-parameter]
 int hubDistance(int N, int sub) {
                            ^~~

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 376 KB Output is correct
2 Correct 28 ms 464 KB Output is correct
3 Correct 2 ms 564 KB Output is correct
4 Correct 24 ms 612 KB Output is correct
5 Correct 22 ms 612 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 612 KB Output is correct
2 Correct 17 ms 612 KB Output is correct
3 Correct 20 ms 612 KB Output is correct
4 Correct 21 ms 612 KB Output is correct

Subtask #3
0 / 13.0

# Verdict Execution time Memory Grader output
1 Incorrect 16 ms 612 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 20 ms 612 KB Output isn't correct

Subtask #5
0 / 13.0

# Verdict Execution time Memory Grader output
1 Incorrect 17 ms 644 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 39.0

# Verdict Execution time Memory Grader output
1 Incorrect 19 ms 644 KB Output isn't correct
2 Halted 0 ms 0 KB -