QOJ.ac
QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#601211 | #5251. Constellations | hzy99999 | WA | 3899ms | 66620kb | C++20 | 2.2kb | 2024-09-29 21:26:17 | 2024-09-29 21:26:17 |
Judging History
answer
#include <iostream>
#include <cstring>
#include <algorithm>
#include <cmath>
#include <queue>
#include <vector>
#define x first
#define y second
using namespace std;
typedef long long LL;
typedef pair<int, int> PII;
typedef long double LD;
const int N = 2e3 + 10;
const LD eps = 1e-18;
LD dist[N][N];
int n;
PII point[N];
int sz[N], year[N]; // year越小越老
int dcmp(LD a, LD b)
{
if (fabs(a - b) < eps)
return 0;
if (a < b)
return -1;
return 1;
}
LD get_dist(PII a, PII b)
{
int dx = a.x - b.x, dy = a.y - b.y;
return sqrt(dx * dx + dy * dy);
}
int main()
{
ios::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
cin >> n;
for (int i = 1; i <= n; i++)
sz[i] = 1;
for (int i = 1; i <= n; i++)
{
int x, y;
cin >> x >> y;
point[i] = {x, y};
year[i] = i;
}
int stand = n;
for (int i = 1; i <= n; i++)
for (int j = i + 1; j <= n; j++)
dist[i][j] = dist[j][i] = get_dist(point[i], point[j]);
vector<int> num;
for (int i = 1; i <= n; i++)
num.push_back(i);
for (int k = 1; k < n; k++)
{
PII t = {-1, -1}; // 存位置
LD minv = 1e18;
for (int i = 0; i < num.size(); i++)
for (int j = i + 1; j < num.size(); j++)
{
int a = num[i], b = num[j];
if (year[a] < year[b])
swap(a, b);
if (t.x == -1 || dcmp(minv, dist[a][b]) > 0 || dcmp(minv, dist[a][b]) == 0 && (year[num[t.x]] > year[a] || year[num[t.x]] == year[a] && year[num[t.y]] < year[b]))
t = {i, j}, minv = dist[a][b];
}
for (int i = 0; i < num.size(); i++)
{
if (i == t.x || i == t.y)
continue;
int x = num[t.x], y = num[t.y];
int a = num[i];
dist[x][a] = dist[a][x] = (dist[x][a] * sz[x] + dist[y][a] * sz[y]) / (sz[x] + sz[y]);
}
sz[num[t.x]] += sz[num[t.y]], sz[num[t.y]] = 0;
year[num[t.x]] = ++stand;
cout << sz[num[t.x]] << endl;
num.erase(num.begin() + t.y);
}
return 0;
}
详细
Test #1:
score: 100
Accepted
time: 0ms
memory: 3540kb
input:
2 0 0 1 0
output:
2
result:
ok single line: '2'
Test #2:
score: 0
Accepted
time: 3295ms
memory: 66368kb
input:
2000 1000 -1000 1000 -999 1000 -998 1000 -997 1000 -996 1000 -995 1000 -994 1000 -993 1000 -992 1000 -991 1000 -990 1000 -989 1000 -988 1000 -987 1000 -986 1000 -985 1000 -984 1000 -983 1000 -982 1000 -981 1000 -980 1000 -979 1000 -978 1000 -977 1000 -976 1000 -975 1000 -974 1000 -973 1000 -972 1000...
output:
2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 ...
result:
ok 1999 lines
Test #3:
score: 0
Accepted
time: 3899ms
memory: 66408kb
input:
2000 -1000 1000 -999 1000 -998 1000 -997 1000 -996 1000 -995 1000 -994 1000 -993 1000 -992 1000 -991 1000 -990 1000 -989 1000 -988 1000 -987 1000 -986 1000 -985 1000 -984 1000 -983 1000 -982 1000 -981 1000 -980 1000 -979 1000 -978 1000 -977 1000 -976 1000 -975 1000 -974 1000 -973 1000 -972 1000 -971...
output:
2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 ...
result:
ok 1999 lines
Test #4:
score: 0
Accepted
time: 3382ms
memory: 66620kb
input:
2000 -1000 -1000 -999 -1000 -998 -1000 -997 -1000 -996 -1000 -995 -1000 -994 -1000 -993 -1000 -992 -1000 -991 -1000 -990 -1000 -989 -1000 -988 -1000 -987 -1000 -986 -1000 -985 -1000 -984 -1000 -983 -1000 -982 -1000 -981 -1000 -980 -1000 -979 -1000 -978 -1000 -977 -1000 -976 -1000 -975 -1000 -974 -10...
output:
2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 ...
result:
ok 1999 lines
Test #5:
score: 0
Accepted
time: 3372ms
memory: 66388kb
input:
2000 -1000 -1000 -1000 -999 -1000 -998 -1000 -997 -1000 -996 -1000 -995 -1000 -994 -1000 -993 -1000 -992 -1000 -991 -1000 -990 -1000 -989 -1000 -988 -1000 -987 -1000 -986 -1000 -985 -1000 -984 -1000 -983 -1000 -982 -1000 -981 -1000 -980 -1000 -979 -1000 -978 -1000 -977 -1000 -976 -1000 -975 -1000 -9...
output:
2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 ...
result:
ok 1999 lines
Test #6:
score: 0
Accepted
time: 3397ms
memory: 66392kb
input:
2000 1000 -250 1000 -249 1000 -248 1000 -247 1000 -246 1000 -245 1000 -244 1000 -243 1000 -242 1000 -241 1000 -240 1000 -239 1000 -238 1000 -237 1000 -236 1000 -235 1000 -234 1000 -233 1000 -232 1000 -231 1000 -230 1000 -229 1000 -228 1000 -227 1000 -226 1000 -225 1000 -224 1000 -223 1000 -222 1000 ...
output:
2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 ...
result:
ok 1999 lines
Test #7:
score: 0
Accepted
time: 3328ms
memory: 66388kb
input:
2000 0 -1000 0 -999 0 -998 0 -997 0 -996 0 -995 0 -994 0 -993 0 -992 0 -991 0 -990 0 -989 0 -988 0 -987 0 -986 0 -985 0 -984 0 -983 0 -982 0 -981 0 -980 0 -979 0 -978 0 -977 0 -976 0 -975 0 -974 0 -973 0 -972 0 -971 0 -970 0 -969 0 -968 0 -967 0 -966 0 -965 0 -964 0 -963 0 -962 0 -961 0 -960 0 -959 ...
output:
2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 ...
result:
ok 1999 lines
Test #8:
score: -100
Wrong Answer
time: 3297ms
memory: 66612kb
input:
2000 -400 571 -725 636 -880 529 -657 372 -383 382 -746 888 -604 785 -497 557 -677 977 -562 917 -530 623 -636 535 -816 579 -633 428 -573 561 -496 479 -409 448 -570 379 -421 795 -827 865 -730 809 -423 984 -676 772 -398 816 -451 373 -756 777 -351 829 -954 345 -543 871 -595 521 -501 734 -378 769 -987 60...
output:
2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 3 2 2 2 2 2 2 2 2 3 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 3 2 2 2 2 2 2 2 2 2 3 3 2 2 2 2 2 2 2 2 2 2 2 2 2 2 3 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 3 2 ...
result:
wrong answer 105th lines differ - expected: '2', found: '3'