| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 713921 |
2023-03-23T08:54:04 Z |
Abhishek_sz |
Sirni (COCI17_sirni) |
C++14 |
|
2675 ms |
786432 KB |
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
#define pbds tree<int, null_type,less<int>, rb_tree_tag,tree_order_statistics_node_update>
using namespace std;
#define ll long long
// #define int ll
#define pb push_back
#define ppb pop_back
#define pf push_front
#define ppf pop_front
#define all(x) (x).begin(), (x).end()
#define uniq(v) (v).erase(unique(all(v)), (v).end())
#define sz(x) (int)((x).size())
#define fr first
#define sc second
#define vi vector<int>
#define vvi vector<vi>
#define pii pair<int, int>
#define rep(i,a,b) for(int i = a; i < b; i++)
#define irep(i, a, b) for(int i = a; i > b; i--)
#define mem1(a) memset(a, -1, sizeof(a))
#define mem0(a) memset(a, 0, sizeof(a))
#define clz __builtin_clzll //leading zeroes
#define ctz __builtin_ctzll //trailing zeroes
#define ppc __builtin_popcountll
#define nl cout << '\n'
template<typename T>
istream &operator>>(istream &in, vector<T>& v){
for(int i = 0; i < v.size(); i++)
in >> v[i];
return in;
}
template<typename T>
ostream &operator<<(ostream &out, vector<T>& v){
for(int i = 0; i < v.size(); i++)
out << v[i] << " ";
return out;
}
template<typename T1, typename T2>istream& operator>>(istream& in, pair<T1, T2>& p){ in >> p.fr >> p.sc; return in; }
template<typename T1, typename T2>ostream& operator<<(ostream& out, pair<T1, T2>& p){ out << p.fr << " " << p.sc << " "; return out; }
const ll INF = 1e18;
const int32_t M = 1e9 + 7;
const int32_t MM = 998244353;
const int MAX = numeric_limits<int>::max();
const int MIN = numeric_limits<int>::min();
const int N = 0;
int egcd(int a, int b, int& x, int& y, int mod){
if(b == 0){
x = 1, y = 0;
return a;
}
int x1, y1, g = egcd(b, a % b, x1, y1, mod);
x = y1 % mod, y = ((x1 - (a / b)*y1) % mod + mod) % mod;
return g;
}
int root(int x, vi& par){
while(x != par[x]){
par[x] = par[par[x]];
x = par[x];
}
return x;
}
bool merge(int u, int v, vi& par, vi& s){
int x = root(u, par), y = root(v, par);
if(x == y) return 0;
if(s[x] < s[y]) swap(x, y);
s[x] += s[y];
par[y] = x;
return 1;
}
void solve(){
ll n, cst = 0; cin >> n;
vi v(n); cin >> v;
sort(all(v)); uniq(v); n = sz(v);
vector<array<int, 3>> e;
rep(i, 0, n){
if(i + 1 < n) e.pb({v[i + 1] - v[i], i + 1, i});
for(int j = 2*v[i]; j <= 1e7; j += v[i]){
auto it = lower_bound(all(v), j);
if(it != v.end()) e.pb({*it - j, it - v.begin(), i});
}
}
sort(all(e));
vi par(n), s(n, 1);
rep(i, 0, n) par[i] = i;
for(auto [w, u, v] : e) if(merge(u, v, par, s)) cst += w;
cout << cst; nl;
}
signed main(){
// #ifndef ONLINE_JUDGE
// freopen("input.txt", "r", stdin);
// freopen("output.txt", "w", stdout);
// #endif
ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
int t = 1; //cin >> t;
rep(i, 0, t){
solve();
}
}
Compilation message
sirni.cpp: In function 'void solve()':
sirni.cpp:92:40: warning: narrowing conversion of '__gnu_cxx::operator-<int*, std::vector<int> >(it, v.std::vector<int>::begin())' from '__gnu_cxx::__normal_iterator<int*, std::vector<int> >::difference_type' {aka 'long int'} to 'int' [-Wnarrowing]
92 | if(it != v.end()) e.pb({*it - j, it - v.begin(), i});
| ~~~^~~~~~~~~~~
sirni.cpp:98:11: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
98 | for(auto [w, u, v] : e) if(merge(u, v, par, s)) cst += w;
| ^
sirni.cpp: In instantiation of 'std::istream& operator>>(std::istream&, std::vector<_Tp>&) [with T = int; std::istream = std::basic_istream<char>]':
sirni.cpp:85:18: required from here
sirni.cpp:35:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
35 | for(int i = 0; i < v.size(); i++)
| ~~^~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
468 KB |
Output is correct |
| 2 |
Correct |
465 ms |
49644 KB |
Output is correct |
| 3 |
Correct |
5 ms |
788 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
89 ms |
492 KB |
Output is correct |
| 2 |
Runtime error |
925 ms |
786432 KB |
Execution killed with signal 9 |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
468 KB |
Output is correct |
| 2 |
Correct |
1 ms |
340 KB |
Output is correct |
| 3 |
Correct |
2 ms |
596 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
480 ms |
26124 KB |
Output is correct |
| 2 |
Correct |
1758 ms |
51124 KB |
Output is correct |
| 3 |
Correct |
871 ms |
50712 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
75 ms |
3576 KB |
Output is correct |
| 2 |
Correct |
839 ms |
50556 KB |
Output is correct |
| 3 |
Correct |
659 ms |
26060 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1071 ms |
50952 KB |
Output is correct |
| 2 |
Correct |
2451 ms |
100088 KB |
Output is correct |
| 3 |
Correct |
846 ms |
26120 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
461 ms |
6956 KB |
Output is correct |
| 2 |
Correct |
2675 ms |
99836 KB |
Output is correct |
| 3 |
Correct |
792 ms |
26312 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
320 ms |
26184 KB |
Output is correct |
| 2 |
Runtime error |
1898 ms |
786432 KB |
Execution killed with signal 9 |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
428 ms |
26132 KB |
Output is correct |
| 2 |
Runtime error |
1676 ms |
786432 KB |
Execution killed with signal 9 |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
43 ms |
3784 KB |
Output is correct |
| 2 |
Runtime error |
2348 ms |
786432 KB |
Execution killed with signal 9 |
| 3 |
Halted |
0 ms |
0 KB |
- |
