49 lines
1.1 KiB
C++
49 lines
1.1 KiB
C++
#include<iostream>
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#include<cstdio>
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#include<cstring>
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#include<algorithm>
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using namespace std;
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#define N 100010
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struct enemy
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{
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int x, y, da, db;
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}p[N], c1, c2;
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bool cmp(enemy a, enemy b)
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{
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return a.da < b.da;
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}
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int dist(enemy a, enemy b)
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{
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return ((a.x - b.x) * (a.x - b.x) + (a.y - b.y) * (a.y - b.y));
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}
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int main()
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{
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int ncase;
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int num;
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int ans, res, onlyb;
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scanf("%d", &ncase);
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while(ncase--)
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{
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scanf("%d%d%d%d", &c1.x, &c1.y, &c2.x, &c2.y);
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scanf("%d", &num);
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for(int i = 0; i < num; ++i)
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{
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scanf("%d%d", &p[i].x, &p[i].y);
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p[i].da = dist(c1, p[i]);
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p[i].db = dist(c2, p[i]);
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}
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sort(p, p + num, cmp);
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res = p[num - 1].da;
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ans = 0;
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for(int i = num - 2; i >= 0; --i)
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{
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ans = max(ans, p[i + 1].db);
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res = min(res, ans + p[i].da);
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}
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ans = max(ans, p[0].db);
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res = min(res, ans);
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printf("%d\n", res);
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}
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return 0;
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}
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