oj.uz

Submission #91219

# Submission time Handle Problem Language Result Execution time Memory
91219 2018-12-26T15:07:21 Z tincamatei New Home (APIO18_new_home) C++14
47 / 100
 5000 ms 422312 KB 
#include <bits/stdc++.h>
 
using namespace std;
 
const int MAX_N = 300000;
 
struct Store {
	int x, t, a, b;
};
 
struct Event {
	int time, x, t, id;
	bool scoate;
};
 
struct Query {
	int l, y;
	int *rez;
};
 
bool cmp1(Event a, Event b) { return a.time < b.time; }
bool cmp2(int *a, int *b) { return *a < *b; }
bool cmp3(Query a, Query b) { return a.y < b.y; }
 
Store v[MAX_N];
int auxx[2*MAX_N];
Event event[2*MAX_N];
Query query[MAX_N];
int rez[MAX_N];
int rangeL[MAX_N], rangeR[MAX_N];
bool activeStore[MAX_N];
 
set<pair<int, int> > typestore[1+MAX_N];
 
vector<pair<int, int> > transf;
 
void normalize(int n) {
	vector<int*> vp;
	for(int i = 0; i < n; ++i)
		vp.push_back(&auxx[i]);
	
	sort(vp.begin(), vp.end(), cmp2);
	int lastV = -1, j = 0;
	
	for(auto it: vp) {
		if(*it == lastV)
			*it = j;
		else {
			lastV = *it;
			transf.push_back(make_pair(*it, ++j));
			*it = j;
		}
	}
}
 
priority_queue<pair<int, int>, vector<pair<int, int>>, std::greater<pair<int, int>>> smallboi[1+8*MAX_N];
priority_queue<pair<int, int>, vector<pair<int, int>>, std::less<pair<int, int>>> bigboi[1+8*MAX_N];
 
void updateAint(int pozl, int pozr, pair<int, int> val, int l, int r, int nod = 1) {
	if(r < l || r < pozl || pozr < l || pozr < pozl) return;
	
	if(pozl <= l && r <= pozr) {
		bigboi[nod].push(val);
		smallboi[nod].push(val);
	} else if(l < r) {
		int mid = (l + r) / 2;
		updateAint(pozl, pozr, val, l, mid, 2 * nod);
		updateAint(pozl, pozr, val, mid + 1, r, 2 * nod + 1);
	}
}
 
pair<int, int> add(pair<int, int> a, pair<int, int> b) {
	return make_pair(min(a.first, b.first), max(a.second, b.second));
}
 
pair<int, int> queryAint(int poz, int l, int r, int nod = 1) {
	pair<int, int> rezQ(1000000000, -1000000000);
	if(r < poz || poz < l || r < l)	return rezQ;
 
	while(!bigboi[nod].empty() && (!activeStore[bigboi[nod].top().second] ||
	                              !(rangeL[bigboi[nod].top().second] <= l &&
																  r <= rangeR[bigboi[nod].top().second])))
		bigboi[nod].pop();
	while(!smallboi[nod].empty() && (!activeStore[smallboi[nod].top().second] ||
	                                !(rangeL[smallboi[nod].top().second] <= l &&
																	  r <= rangeR[smallboi[nod].top().second])))
		smallboi[nod].pop();
	
	if(!smallboi[nod].empty())
		rezQ.first = min(rezQ.first, smallboi[nod].top().first);
	if(!bigboi[nod].empty())
		rezQ.second = max(rezQ.second, bigboi[nod].top().first);
 
	if(l < r) {
		int mid = (l + r) / 2;
		rezQ = add(queryAint(poz, l, mid, 2 * nod),
		       add(queryAint(poz, mid + 1, r, 2 * nod + 1),
					     rezQ));
	}
	return rezQ;
}
 
int getId(int x) {
	int st = 0, dr = transf.size();
 
	while(dr - st > 1) {
		int mid = (st + dr) / 2;
		if(transf[mid].first <= x)
			st = mid;
		else
			dr = mid;
	}
 
	return transf[st].second;
}
 
void updateRange(pair<int, int> st, pair<int, int> dr) {
	pair<int, int> nullpair(-1, -1);
	if(st != nullpair && dr != nullpair) {
		int mid = (st.first + dr.first) / 2;
		int pst = getId(st.first), pdr = getId(dr.first), pmid = getId(mid);
		updateAint(pst + 1, pmid, st, 1, transf.size(), 1);
		updateAint(pmid + 1, pdr - 1, dr, 1, transf.size(), 1);
		rangeR[st.second] = pmid;
		rangeL[dr.second] = pmid + 1;
	} else if(st != nullpair) {
		int pst = getId(st.first);
		updateAint(pst + 1, transf.size(), st, 1, transf.size(), 1);
		rangeR[st.second] = transf.size();
	} else if(dr != nullpair) {
		int pdr = getId(dr.first);
		updateAint(1, pdr - 1, dr, 1, transf.size(), 1);
		rangeL[dr.second] = 1;
	}
}
 
void addStore(int l, int t, int i) {
	set<pair<int, int> >::iterator it;
	pair<int, int> st, dr, val(l, i);
	it = typestore[t].lower_bound(val);
	if(it == typestore[t].end()) dr = make_pair(-1, -1);
	else                         dr = *it;
	if(it == typestore[t].begin()) st = make_pair(-1, -1);
	else {
		it--;
		st = *it;
	}
	
	typestore[t].insert(val);
	updateRange(st, val);
	updateRange(val, dr);
 
	activeStore[i] = true;
}
 
void eraseStore(int l, int t, int i) {
	set<pair<int, int> >::iterator it;
	pair<int, int> st, dr, val(l, i);
	
	it = typestore[t].find(val);
	
	it++;
	if(it == typestore[t].end()) dr = make_pair(-1, -1);
	else                         dr = *it;
 
	it--;
	if(it == typestore[t].begin()) st = make_pair(-1, -1);
	else {
		it--;
		st = *it;
	}
 
	typestore[t].erase(val);
	updateRange(st, dr);
 
	activeStore[i] = false;
}
 
int main() {
#ifdef HOME
	FILE *fin = fopen("input.in", "r");
	FILE *fout = fopen("output.out", "w");
#else
	FILE *fin = stdin;
	FILE *fout = stdout;
#endif
 
	int n, k, q;
	fscanf(fin, "%d%d%d", &n, &k, &q);
 
	for(int i = 0; i < n; ++i) {
		fscanf(fin, "%d%d%d%d", &v[i].x, &v[i].t, &v[i].a, &v[i].b);
		auxx[i] = v[i].x;
		event[2 * i]     = {v[i].a, v[i].x, v[i].t, i, false};
		event[2 * i + 1] = {v[i].b + 1, v[i].x, v[i].t, i, true};
	}
	
	for(int i = 0; i < q; ++i) {
		fscanf(fin, "%d%d", &query[i].l, &query[i].y);
		query[i].rez = &rez[i];
		auxx[n + i] = query[i].l;
	}
 
	normalize(n + q);
	
	sort(event, event + 2 * n, cmp1);
	sort(query, query + q, cmp3);
	
	int lastup = 0, nTypes = 0;
	for(int i = 0; i < q; ++i) {
		while(lastup < 2 * n && event[lastup].time <= query[i].y) {
			if(event[lastup].scoate) {
				eraseStore(event[lastup].x, event[lastup].t, event[lastup].id);
				if(typestore[event[lastup].t].size() == 0)
					--nTypes;
			} else {
				addStore(event[lastup].x, event[lastup].t, event[lastup].id);
				if(typestore[event[lastup].t].size() == 1)
					++nTypes;
			}
			++lastup;
		}
 
		if(nTypes < k)
			*query[i].rez = -1;
		else {
			pair<int, int> rezQ = queryAint(getId(query[i].l), 1, transf.size(), 1);
			*query[i].rez = max(rezQ.second - query[i].l,
			                max(query[i].l - rezQ.first, 0));
		}
	}
 
	for(int i = 0; i < q; ++i)
		fprintf(fout, "%d\n", rez[i]);
 
#ifdef HOME
	fclose(fin);
	fclose(fout);
#endif
	return 0;
}

Compilation message

new_home.cpp: In function 'int main()':
new_home.cpp:189:8: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  fscanf(fin, "%d%d%d", &n, &k, &q);
  ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
new_home.cpp:192:9: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   fscanf(fin, "%d%d%d%d", &v[i].x, &v[i].t, &v[i].a, &v[i].b);
   ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
new_home.cpp:199:9: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   fscanf(fin, "%d%d", &query[i].l, &query[i].y);
   ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 128 ms 164904 KB Output is correct
2 Correct 127 ms 164904 KB Output is correct
3 Correct 124 ms 164904 KB Output is correct
4 Correct 124 ms 164904 KB Output is correct
5 Correct 129 ms 164976 KB Output is correct
6 Correct 134 ms 165296 KB Output is correct
7 Correct 149 ms 165296 KB Output is correct
8 Correct 150 ms 165296 KB Output is correct
9 Correct 148 ms 165308 KB Output is correct
10 Correct 152 ms 165356 KB Output is correct
11 Correct 148 ms 165356 KB Output is correct
12 Correct 138 ms 165512 KB Output is correct
13 Correct 149 ms 165512 KB Output is correct
14 Correct 147 ms 165512 KB Output is correct
15 Correct 148 ms 165512 KB Output is correct
16 Correct 148 ms 165512 KB Output is correct
17 Correct 149 ms 165512 KB Output is correct
18 Correct 152 ms 165520 KB Output is correct
19 Correct 153 ms 165520 KB Output is correct
20 Correct 151 ms 165520 KB Output is correct
21 Correct 149 ms 165520 KB Output is correct
22 Correct 148 ms 165668 KB Output is correct
23 Correct 149 ms 165668 KB Output is correct
24 Correct 156 ms 165668 KB Output is correct
25 Correct 153 ms 165672 KB Output is correct
26 Correct 130 ms 165676 KB Output is correct
27 Correct 198 ms 165828 KB Output is correct
28 Correct 149 ms 165828 KB Output is correct
29 Correct 145 ms 165828 KB Output is correct
30 Correct 150 ms 165828 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 128 ms 164904 KB Output is correct
2 Correct 127 ms 164904 KB Output is correct
3 Correct 124 ms 164904 KB Output is correct
4 Correct 124 ms 164904 KB Output is correct
5 Correct 129 ms 164976 KB Output is correct
6 Correct 134 ms 165296 KB Output is correct
7 Correct 149 ms 165296 KB Output is correct
8 Correct 150 ms 165296 KB Output is correct
9 Correct 148 ms 165308 KB Output is correct
10 Correct 152 ms 165356 KB Output is correct
11 Correct 148 ms 165356 KB Output is correct
12 Correct 138 ms 165512 KB Output is correct
13 Correct 149 ms 165512 KB Output is correct
14 Correct 147 ms 165512 KB Output is correct
15 Correct 148 ms 165512 KB Output is correct
16 Correct 148 ms 165512 KB Output is correct
17 Correct 149 ms 165512 KB Output is correct
18 Correct 152 ms 165520 KB Output is correct
19 Correct 153 ms 165520 KB Output is correct
20 Correct 151 ms 165520 KB Output is correct
21 Correct 149 ms 165520 KB Output is correct
22 Correct 148 ms 165668 KB Output is correct
23 Correct 149 ms 165668 KB Output is correct
24 Correct 156 ms 165668 KB Output is correct
25 Correct 153 ms 165672 KB Output is correct
26 Correct 130 ms 165676 KB Output is correct
27 Correct 198 ms 165828 KB Output is correct
28 Correct 149 ms 165828 KB Output is correct
29 Correct 145 ms 165828 KB Output is correct
30 Correct 150 ms 165828 KB Output is correct
31 Correct 2272 ms 252916 KB Output is correct
32 Correct 256 ms 252916 KB Output is correct
33 Correct 1693 ms 252916 KB Output is correct
34 Correct 2387 ms 255832 KB Output is correct
35 Correct 2268 ms 255832 KB Output is correct
36 Correct 1422 ms 255832 KB Output is correct
37 Correct 1134 ms 255832 KB Output is correct
38 Correct 893 ms 255832 KB Output is correct
39 Correct 721 ms 255832 KB Output is correct
40 Correct 680 ms 255832 KB Output is correct
41 Correct 1415 ms 255832 KB Output is correct
42 Correct 1462 ms 255832 KB Output is correct
43 Correct 225 ms 255832 KB Output is correct
44 Correct 1641 ms 255832 KB Output is correct
45 Correct 1527 ms 255832 KB Output is correct
46 Correct 1236 ms 255832 KB Output is correct
47 Correct 550 ms 255832 KB Output is correct
48 Correct 537 ms 255832 KB Output is correct
49 Correct 683 ms 255832 KB Output is correct
50 Correct 746 ms 255832 KB Output is correct
51 Correct 710 ms 255832 KB Output is correct

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 5072 ms 422136 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Execution timed out 5111 ms 422312 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 128 ms 164904 KB Output is correct
2 Correct 127 ms 164904 KB Output is correct
3 Correct 124 ms 164904 KB Output is correct
4 Correct 124 ms 164904 KB Output is correct
5 Correct 129 ms 164976 KB Output is correct
6 Correct 134 ms 165296 KB Output is correct
7 Correct 149 ms 165296 KB Output is correct
8 Correct 150 ms 165296 KB Output is correct
9 Correct 148 ms 165308 KB Output is correct
10 Correct 152 ms 165356 KB Output is correct
11 Correct 148 ms 165356 KB Output is correct
12 Correct 138 ms 165512 KB Output is correct
13 Correct 149 ms 165512 KB Output is correct
14 Correct 147 ms 165512 KB Output is correct
15 Correct 148 ms 165512 KB Output is correct
16 Correct 148 ms 165512 KB Output is correct
17 Correct 149 ms 165512 KB Output is correct
18 Correct 152 ms 165520 KB Output is correct
19 Correct 153 ms 165520 KB Output is correct
20 Correct 151 ms 165520 KB Output is correct
21 Correct 149 ms 165520 KB Output is correct
22 Correct 148 ms 165668 KB Output is correct
23 Correct 149 ms 165668 KB Output is correct
24 Correct 156 ms 165668 KB Output is correct
25 Correct 153 ms 165672 KB Output is correct
26 Correct 130 ms 165676 KB Output is correct
27 Correct 198 ms 165828 KB Output is correct
28 Correct 149 ms 165828 KB Output is correct
29 Correct 145 ms 165828 KB Output is correct
30 Correct 150 ms 165828 KB Output is correct
31 Correct 2272 ms 252916 KB Output is correct
32 Correct 256 ms 252916 KB Output is correct
33 Correct 1693 ms 252916 KB Output is correct
34 Correct 2387 ms 255832 KB Output is correct
35 Correct 2268 ms 255832 KB Output is correct
36 Correct 1422 ms 255832 KB Output is correct
37 Correct 1134 ms 255832 KB Output is correct
38 Correct 893 ms 255832 KB Output is correct
39 Correct 721 ms 255832 KB Output is correct
40 Correct 680 ms 255832 KB Output is correct
41 Correct 1415 ms 255832 KB Output is correct
42 Correct 1462 ms 255832 KB Output is correct
43 Correct 225 ms 255832 KB Output is correct
44 Correct 1641 ms 255832 KB Output is correct
45 Correct 1527 ms 255832 KB Output is correct
46 Correct 1236 ms 255832 KB Output is correct
47 Correct 550 ms 255832 KB Output is correct
48 Correct 537 ms 255832 KB Output is correct
49 Correct 683 ms 255832 KB Output is correct
50 Correct 746 ms 255832 KB Output is correct
51 Correct 710 ms 255832 KB Output is correct
52 Correct 708 ms 422312 KB Output is correct
53 Correct 704 ms 422312 KB Output is correct
54 Correct 1231 ms 422312 KB Output is correct
55 Correct 1170 ms 422312 KB Output is correct
56 Correct 1224 ms 422312 KB Output is correct
57 Correct 1572 ms 422312 KB Output is correct
58 Correct 1314 ms 422312 KB Output is correct
59 Correct 1116 ms 422312 KB Output is correct
60 Correct 1508 ms 422312 KB Output is correct
61 Correct 218 ms 422312 KB Output is correct
62 Correct 717 ms 422312 KB Output is correct
63 Correct 1151 ms 422312 KB Output is correct
64 Correct 1346 ms 422312 KB Output is correct
65 Correct 1656 ms 422312 KB Output is correct
66 Correct 1769 ms 422312 KB Output is correct
67 Correct 336 ms 422312 KB Output is correct

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 128 ms 164904 KB Output is correct
2 Correct 127 ms 164904 KB Output is correct
3 Correct 124 ms 164904 KB Output is correct
4 Correct 124 ms 164904 KB Output is correct
5 Correct 129 ms 164976 KB Output is correct
6 Correct 134 ms 165296 KB Output is correct
7 Correct 149 ms 165296 KB Output is correct
8 Correct 150 ms 165296 KB Output is correct
9 Correct 148 ms 165308 KB Output is correct
10 Correct 152 ms 165356 KB Output is correct
11 Correct 148 ms 165356 KB Output is correct
12 Correct 138 ms 165512 KB Output is correct
13 Correct 149 ms 165512 KB Output is correct
14 Correct 147 ms 165512 KB Output is correct
15 Correct 148 ms 165512 KB Output is correct
16 Correct 148 ms 165512 KB Output is correct
17 Correct 149 ms 165512 KB Output is correct
18 Correct 152 ms 165520 KB Output is correct
19 Correct 153 ms 165520 KB Output is correct
20 Correct 151 ms 165520 KB Output is correct
21 Correct 149 ms 165520 KB Output is correct
22 Correct 148 ms 165668 KB Output is correct
23 Correct 149 ms 165668 KB Output is correct
24 Correct 156 ms 165668 KB Output is correct
25 Correct 153 ms 165672 KB Output is correct
26 Correct 130 ms 165676 KB Output is correct
27 Correct 198 ms 165828 KB Output is correct
28 Correct 149 ms 165828 KB Output is correct
29 Correct 145 ms 165828 KB Output is correct
30 Correct 150 ms 165828 KB Output is correct
31 Correct 2272 ms 252916 KB Output is correct
32 Correct 256 ms 252916 KB Output is correct
33 Correct 1693 ms 252916 KB Output is correct
34 Correct 2387 ms 255832 KB Output is correct
35 Correct 2268 ms 255832 KB Output is correct
36 Correct 1422 ms 255832 KB Output is correct
37 Correct 1134 ms 255832 KB Output is correct
38 Correct 893 ms 255832 KB Output is correct
39 Correct 721 ms 255832 KB Output is correct
40 Correct 680 ms 255832 KB Output is correct
41 Correct 1415 ms 255832 KB Output is correct
42 Correct 1462 ms 255832 KB Output is correct
43 Correct 225 ms 255832 KB Output is correct
44 Correct 1641 ms 255832 KB Output is correct
45 Correct 1527 ms 255832 KB Output is correct
46 Correct 1236 ms 255832 KB Output is correct
47 Correct 550 ms 255832 KB Output is correct
48 Correct 537 ms 255832 KB Output is correct
49 Correct 683 ms 255832 KB Output is correct
50 Correct 746 ms 255832 KB Output is correct
51 Correct 710 ms 255832 KB Output is correct
52 Execution timed out 5072 ms 422136 KB Time limit exceeded
53 Halted 0 ms 0 KB -