#include <bits/stdc++.h>
#define sz(x) (int)x.size()
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
//#define int long long
using namespace std;
using ll = long long;
using ull = unsigned long long;
using ld = long double;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
const int mod = 1e9 + 7;
const int LOG = 20;
const int maxn = 1e5 + 5;
const double eps = 1e-9;
struct DSU {
int n, comp;
vector<int> par, size;
void config(int _n) {
n = _n + 1;
comp = _n;
par.resize(n+1);
size.resize(n+1, 1);
for(int i=1; i<=n; i++) par[i] = i;
}
int get(int u) {
if(u == par[u]) return u;
return par[u] = get(par[u]);
}
bool uni(int u, int v) {
u = get(u), v = get(v);
if(u == v) return false;
if(size[u] < size[v]) swap(u, v);
size[u] += size[v];
par[v] = u;
comp--;
return true;
}
int getComp() { return comp; }
int getSize(int u) { return size[get(u)]; }
bool sameSet(int u, int v) { return get(u) == get(v); }
};
struct Edge {
int a, b, w;
bool operator<(Edge &e) { return w < e.w; }
};
int32_t main() {
ios_base::sync_with_stdio(false);
cout.tie(0); cin.tie(0);
int n;
ll ans = 0;
cin >> n;
vector<int> v(n);
for(int &x : v) cin >> x;
set<int> s;
for(int &x : v) s.insert(x);
v = vector<int>(all(s));
if(v[0] == 1) {
cout << 0 << '\n';
return 0;
}
DSU dsu; dsu.config(n);
vector<Edge> edges;
int mx = *max_element(all(v));
for(int i=0; i<n; i++) {
for(int val=v[i]; val<=mx; val+=v[i]) {
int p = lower_bound(all(v), val) - v.begin();
if(p == v.size()) continue;
if(v[p] == v[i]) p++;
if(p != v.size()) edges.push_back({ i, p, v[p] % v[i] });
}
}
sort(all(edges));
for(Edge &e : edges)
if(dsu.uni(e.a, e.b)) ans += e.w;
cout << ans << '\n';
return 0;
}
Compilation message
sirni.cpp: In function 'int32_t main()':
sirni.cpp:87:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
87 | if(p == v.size()) continue;
| ~~^~~~~~~~~~~
sirni.cpp:89:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
89 | if(p != v.size()) edges.push_back({ i, p, v[p] % v[i] });
| ~~^~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
604 KB |
Output is correct |
| 2 |
Runtime error |
99 ms |
69088 KB |
Execution killed with signal 8 |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
1 ms |
860 KB |
Execution killed with signal 8 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
600 KB |
Output is correct |
| 2 |
Incorrect |
1 ms |
600 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
135 ms |
41624 KB |
Execution killed with signal 8 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
20 ms |
7932 KB |
Execution killed with signal 8 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
269 ms |
71684 KB |
Execution killed with signal 8 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
42 ms |
14636 KB |
Execution killed with signal 8 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
158 ms |
46884 KB |
Execution killed with signal 8 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
163 ms |
61056 KB |
Execution killed with signal 8 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
22 ms |
8176 KB |
Execution killed with signal 8 |
| 2 |
Halted |
0 ms |
0 KB |
- |
