#include <bits/stdc++.h>
using namespace std;
const int MAX = 100010;
int type, N, D, M;
namespace taskOne {
vector<int> p;
struct BIT {
vector<int> bit;
int nE;
BIT(int _n = 0) {
nE = _n;
bit.assign(_n + 5, 0);
}
void update(int id, int delta) {
for (; id <= nE; id += id & -id)
bit[id] += delta;
}
int get(int id) {
if (id <= 0) return 0;
int res = 0;
for (; id > 0; id -= id & -id)
res += bit[id];
return res;
}
} bit;
void solve(void) {
cin >> N >> D >> M;
for (int i = 1; i <= N; ++i) {
int x; cin >> x;
p.emplace_back(x);
}
BIT bit(M);
long long ans = 0;
sort(p.begin(), p.end());
for (int i = 0; i < N; ++i) {
int x = p[i];
ans += i - bit.get(x - D - 1); bit.update(x, +1);
}
cout << ans;
}
}
namespace taskTwo {
vector<pair<int, int>> p;
struct BIT {
vector<int> bit;
int nE, ADD;
BIT(int _n = 0) {
ADD = _n; nE = 3 * _n;
bit.assign(3 * _n + 5, 0);
}
void update(int id, int delta) {
for (id += ADD; id <= nE; id += id & -id)
bit[id] += delta;
}
int get(int id) {
id += ADD;
int res = 0;
id = min(id, nE);
for (; id > 0; id -= id & -id)
res += bit[id];
return res;
}
int get(int l, int r) {
if (l > r) return 0;
return get(r) - get(l - 1);
}
};
void solve(void) {
cin >> N >> D >> M;
for (int i = 1; i <= N; ++i) {
int x, y; cin >> x >> y;
p.emplace_back(x + y, x - y);
}
BIT bit(M);
long long ans = 0;
sort(p.begin(), p.end());
for (int i = 0, j = 0; i < N; ++i) {
while (p[i].first - p[j].first > D) {
bit.update(p[j].second, -1);
++j;
}
int x = p[j].second; ans += bit.get(x - D, x + D);
bit.update(p[i].second, +1);
}
cout << ans;
}
}
namespace Miku_Nakano {
struct point {
int a, b, c, d;
point(int x = 0, int y = 0, int z = 0) {
a = x + y + z;
b = x + y - z;
c = x - y + z;
d = x - y - z;
}
bool operator< (const point &other) const {
if (a != other.a) return a < other.a;
if (b != other.b) return b < other.b;
if (c != other.c) return c < other.c;
return d < other.d;
}
};
vector<point> p;
struct BIT {
vector<vector<vector<int>>> bit;
int nE; int ADD;
BIT(int _n = 0) {
nE = 5 * _n;
ADD = 2 * _n;
bit.resize(nE + 5);
for (int i = 0; i <= nE; ++i) {
bit[i].resize(nE + 5);
for (int j = 0; j <= nE; ++j) {
bit[i][j].assign(nE + 5, 0);
}
}
}
void update(int x, int y, int z, int delta) {
for (int i = x + ADD; i <= nE; i += i & -i) {
for (int j = y + ADD; j <= nE; j += j & -j) {
for (int k = z + ADD; k <= nE; k += k & -k)
bit[i][j][k] += delta;
}
}
}
int get(int x, int y, int z) {
x += ADD;
y += ADD;
z += ADD;
x = min(x, nE);
y = min(y, nE);
z = min(z, nE);
int res = 0;
for (int i = x; i > 0; i -= i & -i) {
for (int j = y; j > 0; j -= j & -j) {
for (int k = z; k > 0; k -= k & -k)
res += bit[i][j][k];
}
}
return res;
}
int get(int x, int y, int z, int u, int v, int t) {
return get(u, v, t)
- get(x - 1, v, t)
- get(u, y - 1, t)
- get(u, v, z - 1)
+ get(x - 1, y - 1, t)
+ get(x - 1, v, z - 1)
+ get(u, y - 1, z - 1)
- get(x - 1, y - 1, z - 1);
}
};
void solve(void) {
cin >> N >> D >> M;
for (int i = 1; i <= N; ++i) {
int x, y, z; cin >> x >> y >> z;
p.emplace_back(point(x, y, z));
}
BIT bit(M);
long long ans = 0;
sort(p.begin(), p.end());
for (int i = 0, j = 0; i < N; ++i) {
while (p[i].a - p[j].a > D) {
bit.update(p[j].b, p[j].c, p[j].d, -1);
++j;
}
ans += bit.get(p[i].b - D, p[i].c - D, p[i].d - D,
p[i].b + D, p[i].c + D, p[i].d + D);
bit.update(p[i].b, p[i].c, p[i].d, +1);
}
cout << ans;
}
}
int main() {
ios_base::sync_with_stdio(false); cin.tie(nullptr);
cin >> type;
if (type == 1) taskOne::solve(); else
if (type == 2) taskTwo::solve(); else
Miku_Nakano::solve();
return 0;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
119 ms |
293756 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
11 ms |
1240 KB |
Output is correct |
| 2 |
Correct |
11 ms |
1368 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
140 ms |
275624 KB |
Output is correct |
| 2 |
Correct |
131 ms |
275600 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
145 ms |
275692 KB |
Output is correct |
| 2 |
Correct |
134 ms |
275660 KB |
Output is correct |
| 3 |
Correct |
134 ms |
275692 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
1 ms |
1236 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
19 ms |
2004 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
23 ms |
2132 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
27 ms |
3152 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
102 ms |
216140 KB |
Output is correct |
| 2 |
Correct |
98 ms |
216116 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
44 ms |
3272 KB |
Output is correct |
| 2 |
Correct |
40 ms |
3148 KB |
Output is correct |
| 3 |
Correct |
32 ms |
3148 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
206 ms |
113988 KB |
Output is correct |
| 2 |
Correct |
285 ms |
114248 KB |
Output is correct |
| 3 |
Correct |
137 ms |
113984 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
373 ms |
218616 KB |
Output is correct |
| 2 |
Correct |
467 ms |
218580 KB |
Output is correct |
| 3 |
Correct |
283 ms |
218576 KB |
Output is correct |
