oj.uz

Submission #393447

# Submission time Handle Problem Language Result Execution time Memory
393447 2021-04-23T13:29:20 Z ngpin04 Sirni (COCI17_sirni) C++14
112 / 140
 4779 ms 786436 KB 
#include <bits/stdc++.h>
#define fi first
#define se second
#define mp make_pair
using namespace std;
const int N = 1e7 + 5; 

vector <pair <int, int>> edge[N];

int a[N];
int p[N];
int par[N];
int val[N];
int n;

bool mini(int &a, int b) {
	if (a > b) {
		a = b;
		return true;
	}
	return false;
}

int getpar(int u) {
	return (par[u] < 0) ? u : (par[u] = getpar(par[u]));
}

bool join(int u, int v) {
	u = getpar(u);
	v = getpar(v);
	if (u == v)
		return false;
	if (par[u] > par[v])
		swap(u, v);
	par[u] += par[v];
	par[v] = u;	
	return true;
}

int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cin >> n;

	for (int i = 1; i <= n; i++) 
		cin >> a[i];
	sort(a + 1, a + n + 1);
	n = unique(a + 1, a + n + 1) - (a + 1);

	for (int i = 1; i <= n; i++) {
		p[a[i]] = a[i];
		val[a[i]] = 1e9;
	} 	

	int mx = a[n];
	for (int i = mx - 1; i >= 1; i--) 
		if (!p[i])
			p[i] = p[i + 1];

	for (int i = 1; i <= n; i++) {
		int x = a[i];
		if (i < n)
			 edge[p[x + 1] - x].push_back(mp(x, p[x + 1]));

		for (int j = 2 * x; j <= mx; j += x) {
			// cout << p[j] << " " << j << "\n";
			edge[p[j] - j].push_back(mp(x, p[j]));
		}
	}

	for (int i = 1; i <= mx; i++)
		par[i] = -1;
	long long ans = 0;
	for (int i = 0; i <= mx; i++) 
	for (pair <int, int> e : edge[i]) 
		ans += i * join(e.fi, e.se);
	cout << ans;
	return 0;
}

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 221 ms 317148 KB Output is correct
2 Correct 496 ms 347732 KB Output is correct
3 Correct 231 ms 317488 KB Output is correct

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 153 ms 235400 KB Output is correct
2 Runtime error 2960 ms 786436 KB Execution killed with signal 9
3 Halted 0 ms 0 KB -

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 252 ms 317472 KB Output is correct
2 Correct 272 ms 315756 KB Output is correct
3 Correct 247 ms 317572 KB Output is correct

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 222 ms 257492 KB Output is correct
2 Correct 359 ms 286856 KB Output is correct
3 Correct 255 ms 269248 KB Output is correct

Subtask #5
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 183 ms 249088 KB Output is correct
2 Correct 318 ms 270692 KB Output is correct
3 Correct 210 ms 251860 KB Output is correct

Subtask #6
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 286 ms 269540 KB Output is correct
2 Correct 451 ms 301652 KB Output is correct
3 Correct 247 ms 265876 KB Output is correct

Subtask #7
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 168 ms 241164 KB Output is correct
2 Correct 469 ms 307248 KB Output is correct
3 Correct 248 ms 268444 KB Output is correct

Subtask #8
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 449 ms 367020 KB Output is correct
2 Correct 2975 ms 712148 KB Output is correct
3 Correct 492 ms 369996 KB Output is correct

Subtask #9
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 462 ms 371376 KB Output is correct
2 Runtime error 3087 ms 786432 KB Execution killed with signal 9
3 Halted 0 ms 0 KB -

Subtask #10
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 286 ms 350016 KB Output is correct
2 Correct 4779 ms 727824 KB Output is correct
3 Correct 265 ms 268672 KB Output is correct