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 |
---|---|---|---|---|---|---|---|---|---|
#157284 | #7105. Pixel Art | ucup-team180# | AC ✓ | 460ms | 16848kb | C++14 | 4.3kb | 2023-09-02 15:10:05 | 2023-09-04 04:30:23 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
struct unionfind{
vector<int> p;
unionfind(int N){
p = vector<int>(N, -1);
}
int root(int x){
if (p[x] < 0){
return x;
} else {
p[x] = root(p[x]);
return p[x];
}
}
bool same(int x, int y){
return root(x) == root(y);
}
void unite(int x, int y){
x = root(x);
y = root(y);
if (x != y){
if (p[x] < p[y]){
swap(x, y);
}
p[y] += p[x];
p[x] = y;
}
}
};
int main(){
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
int T;
cin >> T;
for (int i = 0; i < T; i++){
int n, m, k;
cin >> n >> m >> k;
vector<int> r1(k), r2(k), c1(k), c2(k);
for (int j = 0; j < k; j++){
cin >> r1[j] >> c1[j] >> r2[j] >> c2[j];
r1[j]--;
c1[j]--;
}
vector<bool> H(k), V(k);
for (int j = 0; j < k; j++){
H[j] = r2[j] - r1[j] == 1;
V[j] = c2[j] - c1[j] == 1;
}
vector<long long> imos(n + 1, 0);
for (int j = 0; j < k; j++){
imos[r1[j]] += c2[j] - c1[j];
imos[r2[j]] -= c2[j] - c1[j];
}
for (int j = 0; j < n; j++){
imos[j + 1] += imos[j];
}
vector<int> cnt(n, 0);
for (int j = 0; j < k; j++){
cnt[r1[j]]++;
}
vector<vector<int>> h(n);
vector<vector<int>> v_start(n);
vector<vector<int>> v_end(n + 1);
for (int j = 0; j < k; j++){
if (H[j]){
h[r1[j]].push_back(j);
}
if (V[j]){
v_start[r1[j]].push_back(j);
v_end[r2[j]].push_back(j);
}
}
map<int, int> mp;
unionfind UF(k);
long long sum = 0;
int ans = 0;
for (int j = 0; j < n; j++){
sum += imos[j];
ans += cnt[j];
if (j > 0){
vector<int> Y;
for (int x : h[j - 1]){
Y.push_back(c1[x]);
Y.push_back(c2[x]);
}
for (int x : h[j]){
Y.push_back(c1[x]);
Y.push_back(c2[x]);
}
for (int x : v_end[j]){
Y.push_back(c1[x]);
Y.push_back(c2[x]);
}
for (int x : v_start[j]){
Y.push_back(c1[x]);
Y.push_back(c2[x]);
}
sort(Y.begin(), Y.end());
Y.erase(unique(Y.begin(), Y.end()), Y.end());
int cnt2 = Y.size();
vector<int> A(cnt2, -1), B(cnt2, -1);
auto paint = [&](vector<int> &C, int x){
int L = lower_bound(Y.begin(), Y.end(), c1[x]) - Y.begin();
int R = lower_bound(Y.begin(), Y.end(), c2[x]) - Y.begin();
for (int l = L; l < R; l++){
C[l] = x;
}
};
for (int x : h[j - 1]){
paint(A, x);
}
for (int x : h[j]){
paint(B, x);
}
for (int x : v_end[j]){
paint(A, x);
}
for (int x : v_start[j]){
paint(B, x);
}
for (int l = 0; l < cnt2; l++){
if (A[l] != -1 && B[l] != -1){
if (!UF.same(A[l], B[l])){
ans--;
UF.unite(A[l], B[l]);
}
}
}
}
for (int x : v_end[j]){
mp.erase(c1[x]);
}
for (int x : v_start[j]){
mp[c1[x]] = x;
for (int dy = -1; dy <= 1; dy += 2){
if (mp.count(c1[x] + dy) == 1){
int y = mp[c1[x] + dy];
if (!UF.same(x, y)){
ans--;
UF.unite(x, y);
}
}
}
}
for (int x : h[j]){
for (int c : {c1[x] - 1, c2[x]}){
if (mp.count(c) == 1){
int y = mp[c];
if (!UF.same(x, y)){
ans--;
UF.unite(x, y);
}
}
}
}
vector<tuple<int, int, int>> T;
for (int x : h[j]){
T.push_back(make_tuple(c1[x], c2[x], x));
}
sort(T.begin(), T.end());
int cnt2 = T.size();
for (int l = 0; l < cnt2 - 1; l++){
if (get<1>(T[l]) == get<0>(T[l + 1])){
int x = get<2>(T[l]);
int y = get<2>(T[l + 1]);
if (!UF.same(x, y)){
ans--;
UF.unite(x, y);
}
}
}
cout << sum << ' ' << ans << '\n';
}
}
}
这程序好像有点Bug,我给组数据试试?
詳細信息
Test #1:
score: 100
Accepted
time: 2ms
memory: 3540kb
input:
3 2 5 2 1 1 1 2 2 3 2 5 2 5 2 1 1 1 3 2 3 2 5 3 3 3 1 1 1 2 3 1 3 2 1 3 2 3
output:
2 1 5 2 3 1 6 1 3 1 4 1 6 2
result:
ok 7 lines
Test #2:
score: 0
Accepted
time: 460ms
memory: 16848kb
input:
2130 2 5 2 1 1 1 2 2 3 2 5 2 5 2 1 1 1 3 2 3 2 5 3 3 3 1 1 1 2 3 1 3 2 1 3 2 3 3 100 51 1 2 2 2 1 4 2 4 1 6 2 6 1 8 2 8 1 10 2 10 1 12 2 12 1 14 2 14 1 16 2 16 1 18 2 18 1 20 2 20 1 22 2 22 1 24 2 24 1 26 2 26 1 28 2 28 1 30 2 30 1 32 2 32 1 34 2 34 1 36 2 36 1 38 2 38 1 40 2 40 1 42 2 42 1 44 2 44 ...
output:
2 1 5 2 3 1 6 1 3 1 4 1 6 2 50 50 100 50 200 1 50 50 150 1 200 1 2 1 4 1 6 1 8 1 10 1 12 1 14 1 16 1 18 1 20 1 22 1 24 1 26 1 28 1 30 1 32 1 34 1 36 1 38 1 40 1 42 1 44 1 46 1 48 1 50 1 52 1 54 1 56 1 58 1 60 1 62 1 64 1 66 1 68 1 70 1 72 1 74 1 76 1 78 1 80 1 82 1 84 1 86 1 88 1 90 1 92 1 94 1 96 1...
result:
ok 355756 lines
Extra Test:
score: 0
Extra Test Passed