제출 #488888

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
488888		keta_tsimakuridze	Segments (IZhO18_segments)	C++14	0 / 100	2714 ms	65540 KiB

segments

#include<bits/stdc++.h>
#define f first
#define s second
#define pii pair<int,int>
#define int long long
using namespace std;
const int N = 2e5 + 5, mod = 1e9 + 7; // !
int t, block[N], le[N], ri[N], mink[N], Bl = 1200 ;
vector<pii> all, cur, L[N], R[N];
void insert(int l,int r,int id) {
	cur.push_back({r - l + 1, id});
	
	block[id] = -1;
	if(cur.size() == Bl) {
		for(int j = 0; j < cur.size(); j++) all.push_back(cur[j]);
		cur.clear();
		sort(all.rbegin(), all.rend());
		
		for(int j = 0; j < all.size(); j++) {
			int bl = j / Bl;
			if(!j || bl != (j - 1)/Bl) L[j].clear(), R[j].clear();
			L[bl].push_back({le[all[j].s], all[j].s});
			R[bl].push_back({ri[all[j].s], all[j].s});
			block[all[j].s] = bl;
		}
		for(int i = 0; i <= (all.size())/Bl; i++) {
			sort(L[i].begin(), L[i].end());
			mink[i] = 2e9;
			for(int k = 0; k < L[i].size(); k++) mink[i] = min(mink[i], ri[L[i][k].s] - le[L[i][k].s] + 1);
			sort(R[i].begin(), R[i].end());
		}
	}
}
vector<pii> erase(vector<pii> cur, int id) {
		vector<pii> new_;
		for(int i = 0; i < cur.size(); i++) {
			if(cur[i].s != id) new_.push_back(cur[i]);
		}
		return new_;
}
void remove(int id) {
	if(block[id] == -1) {
		cur = erase(cur, id);
		return;
	}
	L[block[id]] = erase(L[block[id]], id);
	R[block[id]] = erase(R[block[id]], id);
	return;
}
int get(int l,int r,int k) {
	if(r - l + 1 < k) return 0;
	int cnt = 0;
	for(int i = 0; i < cur.size(); i++) {
		int id = cur[i].s;
		if(ri[id] - le[id] + 1 >= k && le[id] <= r - k + 1 && ri[id] >= l + k - 1) cnt++;
	}
	for(int j = 0; j <= (all.size()) / Bl; j++) {
		if(!L[j].size()) continue;
		if(mink[j] >= k) {
			pii p;
			cnt += L[j].size();
			p = {r - k + 1, 1e7};
			cnt -= L[j].size() - (upper_bound(L[j].begin(), L[j].end(), p) - L[j].begin());
			p = {l + k - 1, -1};
//			for(int aa = 0; aa < R[j].size(); aa++) cout << R[j][aa].f <<" "<<R[j][aa].s <<"---"<< l  <<" "<< k - 1 << endl;
			cnt -= (upper_bound(R[j].begin(), R[j].end(), p) - R[j].begin()) ;
		}
		else {
			for(int i = 0; i < L[j].size(); i++) {
				int id = L[i][j].s;
				if(ri[id] - le[id] + 1 >= k && le[id] <= r - k + 1 && ri[id] >= l + k - 1) cnt++;
			}
			break;
		}
	}
	return cnt;
}
int get(int x,int xo) {
	x = x ^ (t * xo);
	return x; 
}
main() {
	int n;
	cin >> n >> t;
	int xo = 0, idx = -1;
	for(int i = 1; i <= n; i++) {
		int type; cin >> type;
		if(type == 1) {
			int l,r;
			cin >> l >> r;
			le[++idx] = l; ri[idx] = r;
			l = get(l, xo), r = get(r, xo);
			if(l >= r) swap(l, r);
			insert(l,r,idx);
		}
		else if(type == 2) {
			int id;
			cin >> id; 
			remove(id - 1);
		}
		else {
			int l,r,k;
			cin >> l >> r >> k;
			l = get(l, xo), r = get(r, xo);
			if(l > r) swap(l, r);
			xo =  get(l,r,k);
			cout << xo << endl;
		}
	}
}

컴파일 시 표준 에러 (stderr) 메시지

segments.cpp: In function 'void insert(long long int, long long int, long long int)':
segments.cpp:14:16: warning: comparison of integer expressions of different signedness: 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   14 |  if(cur.size() == Bl) {
      |     ~~~~~~~~~~~^~~~~
segments.cpp:15:20: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   15 |   for(int j = 0; j < cur.size(); j++) all.push_back(cur[j]);
      |                  ~~^~~~~~~~~~~~
segments.cpp:19:20: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |   for(int j = 0; j < all.size(); j++) {
      |                  ~~^~~~~~~~~~~~
segments.cpp:26:20: warning: comparison of integer expressions of different signedness: 'long long int' and 'long long unsigned int' [-Wsign-compare]
   26 |   for(int i = 0; i <= (all.size())/Bl; i++) {
      |                  ~~^~~~~~~~~~~~~~~~~~
segments.cpp:29:21: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |    for(int k = 0; k < L[i].size(); k++) mink[i] = min(mink[i], ri[L[i][k].s] - le[L[i][k].s] + 1);
      |                   ~~^~~~~~~~~~~~~
segments.cpp: In function 'std::vector<std::pair<long long int, long long int> > erase(std::vector<std::pair<long long int, long long int> >, long long int)':
segments.cpp:36:20: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |   for(int i = 0; i < cur.size(); i++) {
      |                  ~~^~~~~~~~~~~~
segments.cpp: In function 'long long int get(long long int, long long int, long long int)':
segments.cpp:53:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   53 |  for(int i = 0; i < cur.size(); i++) {
      |                 ~~^~~~~~~~~~~~
segments.cpp:57:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'long long unsigned int' [-Wsign-compare]
   57 |  for(int j = 0; j <= (all.size()) / Bl; j++) {
      |                 ~~^~~~~~~~~~~~~~~~~~~~
segments.cpp:69:21: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   69 |    for(int i = 0; i < L[j].size(); i++) {
      |                   ~~^~~~~~~~~~~~~
segments.cpp: At global scope:
segments.cpp:82:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   82 | main() {
      | ^~~~

• Subtask 1: 0 / 7
• Subtask 2: 0 / 15
• Subtask 3: 0 / 16
• Subtask 4: 0 / 17
• Subtask 5: 0 / 20
• Subtask 6: 0 / 25