結果
| 問題 |
No.1746 Sqrt Integer Segments
|
| ユーザー |
|
| 提出日時 | 2022-02-07 09:50:43 |
| 言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
RE
|
| 実行時間 | - |
| コード長 | 5,931 bytes |
| コンパイル時間 | 2,005 ms |
| コンパイル使用メモリ | 185,716 KB |
| 実行使用メモリ | 18,632 KB |
| 最終ジャッジ日時 | 2024-06-12 00:04:47 |
| 合計ジャッジ時間 | 7,245 ms |
|
ジャッジサーバーID (参考情報) |
judge3 / judge5 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 2 |
| other | AC * 22 RE * 6 |
ソースコード
#include <bits/stdc++.h>
#define all(v) v.begin(), v.end()
#define rall(v) v.rbegin(), v.rend()
#define rep(i,n) for(int i=0;i<(int)(n);i++)
#define drep(i,j,n) for(int i=0;i<(int)(n-1);i++)for(int j=i+1;j<(int)(n);j++)
#define trep(i,j,k,n) for(int i=0;i<(int)(n-2);i++)for(int j=i+1;j<(int)(n-1);j++)for(int k=j+1;k<(int)(n);k++)
#define codefor int test;scanf("%d",&test);while(test--)
#define INT(...) int __VA_ARGS__;in(__VA_ARGS__)
#define LL(...) ll __VA_ARGS__;in(__VA_ARGS__)
#define yes(ans) if(ans)printf("yes\n");else printf("no\n")
#define Yes(ans) if(ans)printf("Yes\n");else printf("No\n")
#define YES(ans) if(ans)printf("YES\n");else printf("NO\n")
#define popcount(v) __builtin_popcountll(v)
#define vector2d(type,name,h,...) vector<vector<type>>name(h,vector<type>(__VA_ARGS__))
#define vector3d(type,name,h,w,...) vector<vector<vector<type>>>name(h,vector<vector<type>>(w,vector<type>(__VA_ARGS__)))
#define vector4d(type,name,h,w,d,...) vector<vector<vector<vector<type>>>>name(h,vector<vector<vector<type>>>(w,vector<vector<type>>(d,vector<type>(__VA_ARGS__))))
using namespace std;
using ll = long long;
template<class T> using rpriority_queue = priority_queue<T, vector<T>, greater<T>>;
const int MOD=1000000007;
const int MOD2=998244353;
const int INF=1<<30;
const ll INF2=1LL<<60;
void scan(int& a){scanf("%d",&a);}
void scan(long long& a){scanf("%lld",&a);}
template<class T,class L>void scan(pair<T, L>& p){scan(p.first);scan(p.second);}
template<class T,class U,class V>void scan(tuple<T,U,V>& p){scan(get<0>(p));scan(get<1>(p));scan(get<2>(p));}
template<class T, size_t size> void scan(array<T, size>& a){ for(auto&& i : a) scan(i);}
template<class T> void scan(T& a){cin>>a;}
template<class T> void scan(vector<T>& vec){for(auto&& it:vec)scan(it);}
void in(){}
template <class Head, class... Tail> void in(Head& head, Tail&... tail){scan(head);in(tail...);}
void print(const int& a){printf("%d",a);}
void print(const long long& a){printf("%lld",a);}
void print(const double& a){printf("%.15lf",a);}
template<class T,class L>void print(const pair<T, L>& p){print(p.first);putchar(' ');print(p.second);}
template<class T> void print(const T& a){cout<<a;}
template<class T> void print(const vector<T>& vec){if(vec.empty())return;print(vec[0]);for(auto it=vec.begin();++it!= vec.end();){putchar(' ');print(*it);}}
void out(){putchar('\n');}
template<class T> void out(const T& t){print(t);putchar('\n');}
template <class Head, class... Tail> void out(const Head& head,const Tail&... tail){print(head);putchar(' ');out(tail...);}
template<class T> void dprint(const T& a){cerr<<a;}
template<class T> void dprint(const vector<T>& vec){if(vec.empty())return;cerr<<vec[0];for(auto it=vec.begin();++it!= vec.end();){cerr<<" "<<*it;}}
void debug(){cerr<<endl;}
template<class T> void debug(const T& t){dprint(t);cerr<<endl;}
template <class Head, class... Tail> void debug(const Head& head, const Tail&... tail){dprint(head);cerr<<" ";debug(tail...);}
ll intpow(ll a, ll b){ ll ans = 1; while(b){ if(b & 1) ans *= a; a *= a; b /= 2; } return ans; }
ll modpow(ll a, ll b, ll p){ ll ans = 1; while(b){ if(b & 1) (ans *= a) %= p; (a *= a) %= p; b /= 2; } return ans; }
ll modinv(ll a, ll m) {ll b = m, u = 1, v = 0;while (b) {ll t = a / b;a -= t * b; swap(a, b);u -= t * v; swap(u, v);}u %= m;if (u < 0) u += m;return u;}
ll updivide(ll a,ll b){return (a+b-1)/b;}
int msb(ll v){return 63-__builtin_clzll(v);}
template<class T> void chmax(T &a,const T b){if(b>a)a=b;}
template<class T> void chmin(T &a,const T b){if(b<a)a=b;}
struct osa_k{
int n;
vector<int> osak_calc;
osa_k(int n = 1000001) {
osak_calc.resize(n, -1);
int d;
for(int i=2;i<n;i+=2)osak_calc[i]=2;
for(int i=3;i<n;i+=2){
if(osak_calc[i]!=-1)continue;
d=i<<1;
for(int j=i;j<n;j+=d){
if(osak_calc[j]!=-1)continue;
osak_calc[j]=i;
}
}
}
bool is_Prime(int x){
return (osak_calc[x]==x);
}
vector<pair<int,int>> prime_factor(int x){
vector<pair<int,int>> ret;
if(x<=1)return ret;
ret.push_back(make_pair(osak_calc[x],1));
x/=osak_calc[x];
while(osak_calc[x]!=-1){
if(osak_calc[x]==ret[ret.size()-1].first){
ret[ret.size()-1].second++;
}else{
ret.push_back(make_pair(osak_calc[x],1));
}
x/=osak_calc[x];
}
return ret;
}
//最小公倍数の数列を返す
vector<pair<int,int>> array_lcm(vector<int> a){
map<int,int> Map;
for(int i=0;i<(int)a.size();i++){
vector<pair<int,int>> b=prime_factor(a[i]);
for(int j=0;j<(int)b.size();j++){
if(Map.count(b[j].first)){
if(b[j].second>Map[b[j].first])Map[b[j].first]=b[j].second;
}else{
Map[b[j].first]=b[j].second;
}
}
}
vector<pair<int,int>> ret;
for(auto v:Map)ret.emplace_back(v.first,v.second);
return ret;
}
};
vector<int> CCE(vector<ll> &s){
int n=s.size(),cnt=0,i=0,pre;
vector<int> ret;
while(i<n){
pre=i;
cnt=0;
while(i<n&&s[i]==s[pre])i++,cnt++;
ret.push_back(cnt);
}
return ret;
}
long long xor64(){
static long long x=88172645463325252LL;
x^=(x<<13);
x^=(x>>7);
return (x^=(x<<17));
}
int main(){
INT(n);
osa_k osa(1000000);
vector<int> a(n);
vector<ll> sumv(n+1),h(1000001);
for(int i=0;i<=1000000;i++)h[i]=xor64();
in(a);
rep(i,n){
sumv[i+1]=sumv[i];
auto p=osa.prime_factor(a[i]);
rep(j,p.size()){
if(p[j].second&1)sumv[i+1]^=h[p[j].first];
}
}
sort(all(sumv));
auto c=CCE(sumv);
ll ans=0;
rep(i,c.size()){
ans+=ll(c[i])*(c[i]-1)/2;
}
out(ans);
}