Submission #20194

#	Time	Username	Problem	Language	Result	Execution time	Memory
20194		suhgyuho_william	Towns (IOI15_towns)	C++98	0 / 100	21 ms	4 KiB

towns

#include "towns.h"
#include <algorithm>

using namespace std;

int R;
int a[150][150];

int hubDistance(int N, int sub) {
	int i,x;
	int v,big;

	for(i=1; i<N; i++) a[0][i] = a[i][0] = getDistance(0,i);
	big = 0;
	for(i=1; i<N; i++){
		if(big < a[0][i]){
			big = a[0][i];
			v = i;
		}
	}
	for(i=1; i<N; i++){
		if(i == v) continue;
		a[v][i] = a[i][v] = getDistance(i,v);
	}
	R = 0;
	for(i=1; i<N; i++){
		if(i == v) continue;
		x = a[0][i]+a[v][i]-big;
		x /= 2;
		R = max(R,max(a[0][i]-x,a[v][i]-x));
	}

	return R;
}

Compilation message (stderr)

towns.cpp:9:28: warning: unused parameter 'sub' [-Wunused-parameter]
 int hubDistance(int N, int sub) {
                            ^
towns.cpp: In function 'int hubDistance(int, int)':
towns.cpp:11:6: warning: 'v' may be used uninitialized in this function [-Wmaybe-uninitialized]
  int v,big;
      ^

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