oj.uz

Submission #990286

# Submission time Handle Problem Language Result Execution time Memory
990286 2024-05-30T06:09:34 Z starchan Towns (IOI15_towns) C++17
25 / 100
 12 ms 1116 KB 
#include<bits/stdc++.h>
#include "towns.h"
using namespace std;
#define in array<int, 2>
#define pb push_back
#define pob pop_back

int hubDistance(int n, int sub)
{
	in opt = {0, 0};
	for(int i = 1; i < n; i++)
		opt = max(opt, {getDistance(i, 0), i});
	int a = opt[1]; opt = {0, a};
	vector<int> d1(n), d2(n); d1[a] = 0;
	for(int i = 0; i < n; i++)
	{
		if(i == a) continue;
		opt = max(opt, {d1[i] = getDistance(i, a), i});
	}
	auto [D, b] = opt; d2[b] = 0;
	map<int, vector<int>> diam; diam[0].pb(a); diam[D].pb(b);
	for(int i = 0; i < n; i++)
	{
		if(i == a || i == b)
			continue;
		d2[i] = getDistance(i, b);
		diam[(d1[i]-d2[i]+D)/2].pb(i);
	}
	int R = 1e9+1;
	for(auto [X, v]: diam)
		R = min(R, max(X, D-X));
	vector<vector<int>> gd;
	for(auto [X, v]: diam)
	{
		if(max(X, D-X) == R)
			gd.pb(v);
	}
	return R;
}

Compilation message

towns.cpp: In function 'int hubDistance(int, int)':
towns.cpp:8:28: warning: unused parameter 'sub' [-Wunused-parameter]
    8 | int hubDistance(int n, int sub)
      |                        ~~~~^~~

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 860 KB Output is correct
2 Correct 7 ms 860 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 10 ms 836 KB Output is correct
5 Correct 10 ms 860 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 860 KB Output is correct
2 Correct 7 ms 860 KB Output is correct
3 Correct 12 ms 860 KB Output is correct
4 Correct 10 ms 860 KB Output is correct

Subtask #3
0 / 13.0

# Verdict Execution time Memory Grader output
1 Incorrect 7 ms 860 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 10 ms 1116 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 13.0

# Verdict Execution time Memory Grader output
1 Incorrect 8 ms 1108 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 39.0

# Verdict Execution time Memory Grader output
1 Incorrect 8 ms 860 KB Output isn't correct
2 Halted 0 ms 0 KB -