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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#204040 | #7105. Pixel Art | ucup-team484 | WA | 201ms | 17160kb | C++17 | 2.2kb | 2023-10-07 00:23:01 | 2023-10-07 00:23:02 |
Judging History
answer
#include <bits/stdc++.h>
#define sz(x) (int)(x).size()
#define all(x) (x).begin(), (x).end()
#define st first
#define nd second
using namespace std;
typedef long long ll;
const int mod = 1e9 + 7;
const int N = 1e6 + 5;
int act[N];
void solve() {
int n, m, k; cin >> n >> m >> k;
vector<vector<array<int, 4>>> arr(n + 1);
vector<array<int, 4>> lin(k);
for (int i = 0; i < k; i++) {
int r1, c1, r2, c2; cin >> r1 >> c1 >> r2 >> c2;
arr[r1].push_back({c1, r2, c2, i});
lin[i] = {r1, c1, r2, c2};
}
ll cnt = 0;
vector<int> pref(n + 2), par(k + 1);
iota(all(par), 0);
function<int(int)> qry = [&](int x) {
return x == par[x] ? x : par[x] = qry(par[x]);
};
auto join = [&](int x, int y) {
if (qry(x) == qry(y))
return 0;
par[qry(x)] = qry(y);
return 1;
};
int comp = 0;
vector<vector<int>> todo(n + 1);
for (int r1 = 1; r1 <= n; r1++) {
sort(arr[r1].begin(), arr[r1].end());
int lst = -1;
for (auto [c1, r2, c2, i]: arr[r1]) {
if (lst != -1 && lin[lst][3] + 1 == c1)
comp -= join(lst, i);
if (act[c1 - 1] != -1)
comp -= join(i, act[c1 - 1]);
if (act[c2 + 1] != -1)
comp -= join(i, act[c2 + 1]);
comp++;
lst = i;
if (c1 == c2) {
act[c1] = i;
todo[r2].push_back(i);
pref[r1]++;
pref[r2 + 1]--;
} else {
pref[r1] += c2 - c1 + 1;
pref[r1 + 1] -= c2 - c1 + 1;
}
}
for (int i: todo[r1])
act[lin[i][1]] = -1;
for (int i: todo[r1 - 1]) {
int c = lin[i][1];
array<int, 4> tmp = {c, -1, -1, -1};
auto it = upper_bound(all(arr[r1]), tmp);
if (it != arr[r1].begin() && (*prev(it))[0] <= c && c <= (*prev(it))[2])
comp -= join(i, (*prev(it))[3]);
}
for (int f: {0, 1}) {
for (auto [c1, r2, c2, i]: arr[r1 - f]) {
for (int x: {c1, c2}) {
array<int, 4> tmp = {x + 1, -1, -1, -1};
auto it = lower_bound(all(arr[r1 - !f]), tmp);
if (it != arr[r1 - !f].begin() && (*prev(it))[2] >= x)
comp -= join(i, (*prev(it))[3]);
}
}
}
pref[r1] += pref[r1 - 1];
cnt += pref[r1];
cout << cnt << " " << comp << "\n";
}
}
int main() {
ios_base::sync_with_stdio(false); cin.tie(0);
memset(act, -1, sizeof act);
int t; cin >> t; while (t--) solve();
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 7352kb
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: -100
Wrong Answer
time: 201ms
memory: 17160kb
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:
wrong answer 10129th lines differ - expected: '6 2', found: '6 4'