Submission #104109

#	Time	Username	Problem	Language	Result	Execution time	Memory
104109		dimash241	New Home (APIO18_new_home)	C++17	12 / 100	2762 ms	27540 KiB

new_home

# include <stdio.h>
# include <bits/stdc++.h>


#define _USE_MATH_DEFINES_
#define ll long long
#define ld long double
#define Accepted 0
#define pb push_back
#define mp make_pair
#define sz(x) (int)(x.size())
#define every(x) x.begin(),x.end()
#define F first
#define S second
#define For(i,x,y)  for (int i = x; i <= y; i ++) 
#define FOr(i,x,y)  for (int i = x; i >= y; i --)
#define SpeedForce ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0)
// ROAD to...                                                                                                                                                                                                                Red

using namespace std;
inline double Time() {return (clock() * 1.0) / CLOCKS_PER_SEC; } 
inline bool isvowel (char c) {
	c = tolower(c);
    if (c == 'a' || c == 'e' || c == 'i' || c == 'y' || c == 'o' || c == 'u') return 1;
    return 0;
}

const double eps = 0.000001;
const ld pi = acos(-1);
const int maxn = 1e7 + 9;
const int mod = 1e9 + 7;
const ll MOD = 1e18 + 9;
const ll INF = 1e18 + 123;
const int inf = 2e9 + 11;
const int mxn = 1e6 + 9;
const int N = 6e5 + 123;                                          
const int M = 22;
const int pri = 997;
const int Magic = 2101;

const int dx[] = {-1, 0, 1, 0};
const int dy[] = {0, -1, 0, 1};
 
int n, q, k;
int x[N], t[N], a[N], b[N];
int l[N], y[N];
int ans[N];
vector < int > pp;


inline void solve () {
	for (int i = 1; i <= n; i ++)
		pp.pb(a[i]), pp.pb(b[i]);
	for (int i = 1; i <= q; i ++) {
		pp.pb(y[i]);
	}
	sort(every(pp));
	pp.resize(unique(every(pp)) - pp.begin());
	vector < vector < pair < int, int > > > add(pp.size() + 2);
	vector < vector < pair < int, int > > > del(pp.size() + 2);
	vector < vector < pair < int, int > > > query(pp.size() + 2);
	multiset < int > bl[k + 1];
	for (int i = 1; i <= k; i ++)
		bl[i].clear();
	for (int i = 1; i <= n; i ++) {
		a[i] = lower_bound(every(pp), a[i]) - pp.begin();
		b[i] = lower_bound(every(pp), b[i]) - pp.begin();
		add[a[i]].pb(mp(x[i], t[i]));
		del[b[i]].pb(mp(x[i], t[i]));
	}

	for (int i = 1; i <= q; i ++) {
		y[i] = lower_bound(every(pp), y[i]) - pp.begin();
		query[y[i]].pb(mp(l[i], i));
	}

	for (int vv = 0; vv < pp.size(); vv ++) {

		for (auto it : add[vv]) bl[it.S].insert(it.F);

		for (auto q : query[vv]) {
			int res = 0;
			for (int w = 1; w <= k; w ++) {
				if (bl[w].empty()) {
					res = -1;
					break;
				}

				int cur = inf;
				auto l = bl[w].upper_bound(q.F);
				if (l != bl[w].end()) {
					cur = min(cur, *l - q.F); 
				}
				if (l != bl[w].begin()) {
					--l;
					cur = min(cur, q.F - *l);
				}
		//		cout << cur << ' ' << w << '\n';
				res = max(res, cur);
			}
			ans[q.S] = res;
		}

		for (auto it : del[vv]) bl[it.S].erase(bl[it.S].find(it.F));
	}
	for (int i = 1; i <= q; i ++)
		cout << ans[i] << '\n';
}

int main () {
	SpeedForce;             
    cin >> n >> k >> q;
    for (int i = 1; i <= n; i ++) {
    	cin >> x[i] >> t[i] >> a[i] >> b[i];
    }
    for (int i = 1; i <= q; i ++) {
    	cin >> l[i] >> y[i];
    }
    if (k < 500) {
    	solve();
    	exit(0);
    }
    return Accepted;
}

// B...a D....

Compilation message (stderr)

new_home.cpp: In function 'void solve()':
new_home.cpp:77:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int vv = 0; vv < pp.size(); vv ++) {
                   ~~~^~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 7 / 7
• Subtask 3: 0 / 10
• Subtask 4: 0 / 23
• Subtask 5: 0 / 35
• Subtask 6: 0 / 20