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#include<cmath>
struct { int x, y; double getDis(Point& p) { return sqrt((x - p.x)*(x - p.x) + (y - p.y)*(y - p.y)); }
}point[8]; double dis[8][8],min; int n, seq[8], min_seq[8]; bool visit[8]; void dfs(int prev, int count, double len) { if (count == n) { if (min > len) { min = len; for (int i = 0; i < n; i++) min_seq[i] = seq[i]; }
return; }
for (int i = 0; i < n; i++) { if (!visit[i]) { visit[i] = true; seq[count] = i; dfs(i, count + 1, len + dis[prev][i]); visit[i] = false; } } } int main() { int i, Case = 1; while (scanf("%d", &n) && n) { for (i = 0; i < n; i++) scanf("%d%d", &point[i].x, &point[i].y);
for (i = 0; i < n; i++) for (int j = i + 1; j < n; j++) dis[i][j] = dis[j][i] = point[i].getDis(point[j]);
min = 1e9; for (i = 0; i < n; i++) { seq[0] = i; visit[i] = true; dfs(i, 1, 0); visit[i] = false; }
puts("**********************************************************"); printf("Network #%dn", Case++); for (i = 0; i < n - 1; i++) printf("Cable requirement to connect (%d,%d) to (%d,%d) is %.2lf feet.n", point[min_seq[i]].x, point[min_seq[i]].y, point[min_seq[i + 1]].x, point[min_seq[i + 1]].y, dis[min_seq[i]][min_seq[i + 1]]+16); printf("Number of feet of cable required is %.2lf.n", min+16*(n-1)); }
return 0; }
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