Submission #207273

#	Time	Username	Problem	Language	Result	Execution time	Memory
207273		AQT	Towns (IOI15_towns)	C++14	0 / 100	28 ms	1144 KiB

towns

#include <towns.h>
#include <bits/stdc++.h>

using namespace std;

int dist[200][200];

int centDistance(int i, int j, int k){
    return (dist[i][j] + dist[i][k] - dist[j][k])/2;
}

int hubDistance(int N, int sub){
    int d1 = 0, d2 = 0;
    for(int i = 1; i<N; i++){
        dist[0][i] = getDistance(0, i);
        if(dist[0][i] > dist[0][d1]){
            d1 = i;
        }
    }
    for(int i = 0; i<N; i++){
        dist[d1][i] = getDistance(d1, i);
        if(dist[d1][i] > dist[d1][d2]){
            d2 = i;
        }
    }
    int dia = dist[d1][d2];
    int ans = 0;
    for(int i = 0; i<N; i++){
        int k = centDistance(i, 0, d1);
        if(abs(ans-dia/2) > abs(k-dia/2)){
            ans = k;
        }
    }
    return ans;
}

Compilation message (stderr)

towns.cpp: In function 'int hubDistance(int, int)':
towns.cpp:12:28: warning: unused parameter 'sub' [-Wunused-parameter]
 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