oj.uz

Submission #124089

# Submission time Handle Problem Language Result Execution time Memory
124089 2019-07-02T13:56:53 Z eriksuenderhauf ICC (CEOI16_icc) C++11
90 / 100
 176 ms 796 KB 
//#pragma GCC optimize("O3")
#include <bits/stdc++.h>
#include "icc.h"
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/rope>
#define mem(a,v) memset((a), (v), sizeof (a))
#define enl printf("\n")
#define case(t) printf("Case #%d: ", (t))
#define ni(n) scanf("%d", &(n))
#define nl(n) scanf("%I64d", &(n))
#define nai(a, n) for (int i = 0; i < (n); i++) ni(a[i])
#define nal(a, n) for (int i = 0; i < (n); i++) nl(a[i])
#define pri(n) printf("%d\n", (n))
#define prl(n) printf("%I64d\n", (n))
#define pii pair<int, int>
#define pil pair<int, long long>
#define pll pair<long long, long long>
#define vii vector<pii>
#define vil vector<pil>
#define vll vector<pll>
#define vi vector<int>
#define vl vector<long long>
#define pb push_back
#define mp make_pair
#define fi first
#define se second
using namespace std;
using namespace __gnu_pbds;
typedef long long ll;
typedef cc_hash_table<int,int,hash<int>> ht;
typedef tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update> oset;
const double pi = acos(-1);
const int MOD = 1e9 + 7;
const int INF = 1e9 + 7;
const int MAXN = 1e2 + 5;
const double eps = 1e-9;
int par[MAXN], sz[MAXN];
vi comp[MAXN];

int qry(int x) { return par[x] == x ? par[x] : qry(par[x]); }
void join(int u, int v) {
	u = qry(u), v = qry(v);
	if (u == v) return;
	if (sz[u] > sz[v]) swap(u, v);
	par[u] = v;
	comp[v].insert(comp[v].end(), comp[u].begin(), comp[u].end());
}

pii solve(int N) {
	pii ret;
	vi cand;
	for (int i = 1; i <= N; i++) {
		if (qry(i) != i)
			continue;
		cand.pb(i);
	}
	vi l, r;
	for (int ind = 0; (1<<ind) < (int)cand.size(); ind++) {
		l.clear();
		r.clear();
		for (int j = 0; j < (int)cand.size(); j++) {
			if ((j >> ind) & 1)
				l.insert(l.end(), comp[cand[j]].begin(), comp[cand[j]].end());
			else
				r.insert(r.end(), comp[cand[j]].begin(), comp[cand[j]].end());
		}
		int la[l.size()], ra[r.size()];
		copy(l.begin(), l.end(), la);
		copy(r.begin(), r.end(), ra);
		int fl = query((int)l.size(),(int)r.size(), la, ra);
		if (fl == 1)
			break;
	}
	int lo = 0, hi = l.size()-1;
	if (hi == lo)
		hi--;
	while (lo <= hi) {
		int mi = (lo+hi) / 2;
		vi tmp;
		for (int i = 0; i <= mi; i++)
			tmp.pb(l[i]);
		int la[tmp.size()], ra[r.size()];
		copy(tmp.begin(), tmp.end(), la);
		copy(r.begin(), r.end(), ra);
		int fl = query((int)tmp.size(),(int)r.size(), la, ra);
		if (fl == 1)
			hi = mi - 1;
		else
			lo = mi + 1;
	}
	ret.fi = l[lo];
	lo = 0, hi = r.size()-1;
	if (hi == lo)
		hi--;
	while (lo <= hi) {
		int mi = (lo+hi) / 2;
		vi tmp;
		for (int i = 0; i <= mi; i++)
			tmp.pb(r[i]);
		int la[l.size()], ra[tmp.size()];
		copy(l.begin(), l.end(), la);
		copy(tmp.begin(), tmp.end(), ra);
		int fl = query((int)l.size(),(int)tmp.size(), la, ra);
		if (fl == 1)
			hi = mi - 1;
		else
			lo = mi + 1;
	}
	ret.se = r[lo];
	return ret;
}


void run(int N) {
	for (int i = 1; i <= N; i++)
		par[i] = i, sz[i] = 1, comp[i] = {i};
	//cerr << "Number of nodes: " << N << "\n";
	for (int t = 1; t < N; t++) {
		//cerr << "Round: " << t << "\n";
		int a, b;
		tie(a, b) = solve(N);
		setRoad(a, b);
		join(a, b);
	}
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 504 KB Ok! 103 queries used.
2 Correct 9 ms 504 KB Ok! 102 queries used.

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 43 ms 504 KB Ok! 547 queries used.
2 Correct 55 ms 632 KB Ok! 690 queries used.
3 Correct 54 ms 504 KB Ok! 681 queries used.

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 148 ms 796 KB Ok! 1414 queries used.
2 Correct 175 ms 504 KB Ok! 1671 queries used.
3 Correct 162 ms 560 KB Ok! 1602 queries used.
4 Correct 163 ms 568 KB Ok! 1510 queries used.

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 159 ms 568 KB Ok! 1542 queries used.
2 Correct 152 ms 504 KB Ok! 1445 queries used.
3 Correct 169 ms 560 KB Ok! 1625 queries used.
4 Correct 156 ms 632 KB Ok! 1523 queries used.

Subtask #5
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 167 ms 568 KB Ok! 1604 queries used.
2 Correct 171 ms 564 KB Ok! 1616 queries used.
3 Correct 176 ms 504 KB Ok! 1663 queries used.
4 Correct 168 ms 632 KB Ok! 1589 queries used.
5 Correct 154 ms 568 KB Ok! 1492 queries used.
6 Correct 167 ms 576 KB Ok! 1598 queries used.

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 172 ms 504 KB Too many queries! 1633 out of 1625
2 Halted 0 ms 0 KB -