#include <bits/stdc++.h>
using namespace std;
#define fi first
#define se second
#define MASK(i) (1LL << (i))
#define BIT(x, i) (((x) >> (i)) & 1)
#define FOR(i, a, b) for(int i = a; i <= b; ++i)
#define FORD(i, a, b) for(int i = b; i >= a; --i)
#define REP(i, a, b) for(int i = a; i < b; ++i)
#define REPD(i, a, b) for(int i = b; i > a; -- i)
#define ALL(v) v.begin(),v.end()
#define next __next
#define left __left
#define right __right
#define prev __prev
const int MOD[6] = {(int)1e9 + 7, (int)1e9 + 2277, (int)1e9 + 5277, (int)1e9 + 8277, (int)1e9 + 9277, 998244353};
const int BASE[6] = {23309, 300, 330, 280, 2309, 256};
const int base = BASE[0];
const int mod = MOD[0];
void add(int &u, int v){
u += v;
if(u >= mod) u -= mod;
}
void sub(int &u, int v){
u -= v;
if(u < 0) u += mod;
}
void minimize(int &u, int v){
if(u > v) u = v;
}
void maximize(int &u, int v){
if(u < v) u = v;
}
void minimizell(long long &u, long long v){
if(u > v) u = v;
}
void maximizell(long long &u, long long v){
if(u < v) u = v;
}
const int maxN = 3e5 + 2;
const int maxM = 1e5 + 2;
const int maxK = 1e2 + 2;
const int INF = 1e9 + 8;
const long long INFLL = 1e18;
const int LOG = 16;
vector<int> adj[maxN];
int N, M;
struct Event{
int x, yA, yB, type, id;
}seg[2 * maxN];
// 3 phai sau 1 va truoc 2
// 1 3 2
bool cmp(const Event &A, const Event &B){
if(A.x != B.x) return A.x < B.x;
return A.type > B.type;
}
int comp[3 * maxN];// compress array
int par[maxN];
int curNode = 0;
set<int> col[maxN];
int it[12 * maxN];
int lazy[12 * maxN];
void build(int id, int l, int r){
if(l == r){
lazy[id] = -1;
return ;
}
int mid = l + r >> 1;
build(id << 1, l, mid);
build(id << 1 | 1, mid + 1, r);
lazy[id] = -1;
}
void push(int id){
lazy[id << 1] = lazy[id << 1 | 1] = it[id << 1] = it[id << 1 | 1] = lazy[id];
lazy[id] = -1;
}
void update(int id, int l, int r, int u, int v, int val){
if(l > v || r < u)return ;
if(l >= u && r <= v){
it[id] = val;
lazy[id] = val;
return ;
}
int mid = l + r >> 1;
if(lazy[id] != -1)push(id);
update(id << 1, l, mid, u, v, val);
update(id << 1 | 1, mid + 1, r, u, v, val);
}
int get(int id, int l, int r, int u, int v){
if(l > v || r < u) return 0;
if(l >= u && r <= v){
return it[id];
}
int mid = l + r >> 1;
if(lazy[id] != -1)push(id);
return max(get(id << 1, l, mid, u, v), get(id << 1 | 1, mid + 1, r, u, v));
}
int res[maxN];
void dfs(int u){
for(int v : adj[u]){
dfs(v);
if(col[v].size() > col[u].size())swap(col[u], col[v]);
for(set<int> :: iterator it = col[v].begin(); it != col[v].end(); ++it)col[u].insert(*it);
col[v].clear();
}
res[u] = col[u].size();
}
int degIn[maxN];
int main(){
// freopen("Plahte.INP", "r", stdin);
// freopen("Plahte.OUT", "w", stdout);
//freopen(".INP", "w", stdout);
//freopen(".ANS", "w", stdout);
ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
cin >> N >> M;
int cnt = 0, cntEvent = 0;
FOR(i, 1, N){
int a, b, c, d;
cin >> a >> b >> c >> d;
comp[++cnt] = b;
comp[++cnt] = d;
seg[++cntEvent] = {a, b, d, 1, i};
seg[++cntEvent] = {c, b, d, -1, i};
}
FOR(i, 1, M){
int x, y, k;
cin >> x >> y >> k;
comp[++cnt] = y;
seg[++cntEvent] = {x, y, y, 0, k};
}
sort(comp + 1, comp + 1 + cnt);
// cnt = 20;
sort(seg + 1, seg + 1 + cntEvent, cmp);
// for(int i = 1; i <= cntEvent; ++i)cout << seg[i].x << ' ' << seg[i].yA << ' ' << seg[i].yB << ' ' << seg[i].type << ' ' << seg[i].id << "\n";
FOR(i, 1, cntEvent){
Event &tmp = seg[i];
tmp.yA = lower_bound(comp + 1, comp + 1 + cnt, tmp.yA) - comp;
tmp.yB = lower_bound(comp + 1, comp + 1 + cnt, tmp.yB) - comp;
if(tmp.type == 1){
int p = get(1, 1, cnt, tmp.yA, tmp.yB);
if(p > 0){
adj[p].push_back(tmp.id);
par[tmp.id] = p;
degIn[tmp.id]++;
}
update(1, 1, cnt, tmp.yA, tmp.yB, tmp.id);
// addSegment(1, 1, cnt, tmp.yA, tmp.yB, tmp.id);
}
else if(tmp.type == -1){
update(1, 1, cnt, tmp.yA, tmp.yB, par[tmp.id]);
// cout << inRec(1, 1, cnt, tmp.yA, tmp.yB) << "\n";
// FOR(i, tmp.yA, tmp.yB)cout << inRec(1, 1, cnt, i, i) << ' ';cout << "\n";
}
else{
int node = get(1, 1, cnt, tmp.yA, tmp.yB);
if(node > 0){
col[node].insert(tmp.id);
}
}
}
for(int i = 1; i <= N; ++i){
if(degIn[i] == 0)dfs(i);
}
FOR(i, 1, N)cout << res[i] << '\n';
return 0;
}
Compilation message
plahte.cpp: In function 'void build(int, int, int)':
plahte.cpp:68:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
68 | int mid = l + r >> 1;
| ~~^~~
plahte.cpp: In function 'void update(int, int, int, int, int, int)':
plahte.cpp:84:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
84 | int mid = l + r >> 1;
| ~~^~~
plahte.cpp: In function 'int get(int, int, int, int, int)':
plahte.cpp:94:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
94 | int mid = l + r >> 1;
| ~~^~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
67 ms |
40272 KB |
Output is correct |
| 2 |
Correct |
64 ms |
39764 KB |
Output is correct |
| 3 |
Correct |
5 ms |
33372 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
72 ms |
40692 KB |
Output is correct |
| 2 |
Correct |
81 ms |
39760 KB |
Output is correct |
| 3 |
Correct |
5 ms |
33368 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
121 ms |
48076 KB |
Output is correct |
| 2 |
Correct |
123 ms |
46164 KB |
Output is correct |
| 3 |
Correct |
4 ms |
33372 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
213 ms |
55780 KB |
Output is correct |
| 2 |
Correct |
213 ms |
54716 KB |
Output is correct |
| 3 |
Correct |
4 ms |
33372 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
221 ms |
53844 KB |
Output is correct |
| 2 |
Correct |
205 ms |
54608 KB |
Output is correct |
| 3 |
Correct |
4 ms |
33372 KB |
Output is correct |
