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#*....;:....*##;....:#*+S+....,SS,,,,,*%;;:;?S,...+%,...,%*....?@S,....*#?*?S;....:@?.....?@%,....*@?,...,++,.,.,S*:,,+S;....:S%**+;*S:....;#*;*S;....;*:..,.*SS*....:S+,;S;....;#%+;%?.....%#,...,%?,..
SS,...,,...,SS#;....:??*#*....,S%.....?%;:;;%S,...+#;.,.:#*.,..?@S,....+%?*?#;.,..:S*.....?#%,....*@+...,,::,....?%:,,+S;....:S+:,,:*S:....;%?*S%,...,:::,...:##?....:S+,;S;....:??*+S?.....%#,....%?,..
%#+........+#S#;.......,S#+,...::..,:*S?+++*SS,...+@*...;@*....?@%,........+@;....,,,....:%S%,....*S,....*##+....;S+,,+S;....:S+::::*S:.......,#*....,S#%,...,?@?....:S;.;S;........:#?.....%#,....%?,..
%SS********%#S#?********S##S?*++++*?SS%?????%S****?#S***S#%****%SS*********?#?*********??%?*%*****%S*****%%%?*****%*;;+%?****?%*;+;+*S?********#?****?S%%*****%#S*****%+:;%?*********S%*****%S*****%*:::
*/
#include"bits/stdc++.h"
#pragma GCC optimize("O3", "unroll-loops")
#define ll long long
#define ld long double
#define ff first
#define ss second
#define pii pair<int, int>
#define mp make_pair
#define make_rng mt19937 rng(chrono::steady_clock::now().time_since_epoch().count())
#define make_rng64 mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count())
using namespace std;
void setIO(string s = ""){
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
cout.tie(nullptr);
if (!s.empty()){
freopen((s+".in").c_str(), "r", stdin);
freopen((s+".out").c_str(), "w", stdout);
}
}
int p[100000];
int find(int x){
return (p[x] < 0 ? x : p[x] = find(p[x]));
}
bool unite(int x, int y){
x = find(x), y = find(y);
if (x == y) return 0;
if (p[x] > p[y]) swap(x, y);
p[x] += p[y];
p[y] = x;
return 1;
}
int main(){
setIO();
int n;
cin >> n;
vector<int> v(n);
for (int &i : v) cin >> i;
sort(v.begin(), v.end());
v.erase(unique(v.begin(), v.end()), v.end());
int lim = v.back();
vector<int> nearest(lim+1, -1);
for (int i = 0; i < v.size();i++) nearest[v[i]] = i;
for (int i = lim - 1; i >= 0; i--) if (nearest[i] == -1) nearest[i] = nearest[i+1];
vector<pair<int, pii>> edge;
for (int i = 0; i < v.size()-1; i++){
edge.push_back(mp(v[i+1]%v[i], mp(i, i+1)));
for (int j = v[i]*2; j <= lim; j+=v[i]) edge.push_back(mp(v[nearest[j]]%v[i], mp(i, nearest[j])));
}
sort(edge.begin(), edge.end());
ll ans = 0;
memset(p, -1, sizeof p);
for (const auto &e : edge){
if (unite(e.ss.ff, e.ss.ss)) ans += e.ff;
}
cout << ans;
//for (int i = 0; i <= lim; i++) cout << nearest[i] << ' ';
}
Compilation message
sirni.cpp: In function 'int main()':
sirni.cpp:171:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
171 | for (int i = 0; i < v.size();i++) nearest[v[i]] = i;
| ~~^~~~~~~~~~
sirni.cpp:174:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
174 | for (int i = 0; i < v.size()-1; i++){
| ~~^~~~~~~~~~~~
sirni.cpp: In function 'void setIO(std::string)':
sirni.cpp:140:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
140 | freopen((s+".in").c_str(), "r", stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sirni.cpp:141:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
141 | freopen((s+".out").c_str(), "w", stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
23 ms |
40016 KB |
Output is correct |
2 |
Correct |
250 ms |
88716 KB |
Output is correct |
3 |
Correct |
30 ms |
40228 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
980 KB |
Output is correct |
2 |
Runtime error |
770 ms |
786432 KB |
Execution killed with signal 9 |
3 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
32 ms |
39928 KB |
Output is correct |
2 |
Correct |
22 ms |
39768 KB |
Output is correct |
3 |
Correct |
25 ms |
40220 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
152 ms |
30184 KB |
Output is correct |
2 |
Correct |
604 ms |
54792 KB |
Output is correct |
3 |
Correct |
282 ms |
54688 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
23 ms |
7628 KB |
Output is correct |
2 |
Correct |
298 ms |
54496 KB |
Output is correct |
3 |
Correct |
162 ms |
28096 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
339 ms |
54572 KB |
Output is correct |
2 |
Correct |
807 ms |
104024 KB |
Output is correct |
3 |
Correct |
228 ms |
30144 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
49 ms |
7880 KB |
Output is correct |
2 |
Correct |
808 ms |
103768 KB |
Output is correct |
3 |
Correct |
230 ms |
30136 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
221 ms |
65344 KB |
Output is correct |
2 |
Runtime error |
774 ms |
786432 KB |
Execution killed with signal 9 |
3 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
242 ms |
65468 KB |
Output is correct |
2 |
Runtime error |
710 ms |
786432 KB |
Execution killed with signal 9 |
3 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
46 ms |
42960 KB |
Output is correct |
2 |
Runtime error |
759 ms |
786432 KB |
Execution killed with signal 9 |
3 |
Halted |
0 ms |
0 KB |
- |