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Submission #846515

# Submission time Handle Problem Language Result Execution time Memory
846515 2023-09-07T17:08:23 Z serifefedartar Konstrukcija (COCI20_konstrukcija) C++17
0 / 110
 0 ms 348 KB 
#include <bits/stdc++.h>
using namespace std;
 
#define fast ios::sync_with_stdio(0);cin.tie(0);
#define s second
#define f first
typedef long long ll;
const ll MOD = 998244353;
const ll LOGN = 20;
const ll MAXN = 3e5 + 5;

ll now = 0;
int N = 1;
vector<int> curr;
vector<pair<int,int>> edges;

void addEdge(int cnt) {
	vector<int> new_nodes;
	for (int i = N+1; i <= N+cnt; i++)
		new_nodes.push_back(i);
	N += cnt;

	for (auto from : curr) {
		for (auto to : new_nodes)
			edges.push_back({from, to});
	}
	curr = new_nodes;
}

void addNode() {
	N++;
	edges.push_back({1, N});
	curr.push_back(N);
}

int main() {
	fast
	ll K;
	cin >> K;

	bool flip = K < 0;
	K = -K;
	curr.push_back(1);
	for (ll i = 60; i >= 0; i--) {
		if ((1ll<<i) & K) {
			addEdge(2);
			addNode();
			now = -1*abs(now) - 1;
			if (i == 0) {
				addEdge(2);
				now = -now;
			} else {
				addEdge(3);
				now = 2*abs(now);
			}
		} else if (i != 0) {
			addEdge(3);
			addEdge(2);
			now = abs(now) * 2;
		}
	}

	if (now == -K) {
		addEdge(2);
		now = -now;
	}

	if (flip) {
		addEdge(2);
		now = -now;
	}

	cout << N << " " << edges.size() << "\n";
	for (auto u : edges)
		cout << u.f << " " << u.s << "\n"; 
}

Subtask #1
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB Wrong answer.
2 Halted 0 ms 0 KB -

Subtask #2
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Wrong answer.
2 Halted 0 ms 0 KB -

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB Wrong answer.
2 Halted 0 ms 0 KB -

Subtask #4
0 / 60.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB Wrong answer.
2 Halted 0 ms 0 KB -