#include<bits/stdc++.h>
using namespace std;
namespace std {
// #include<Love>
using ll=long long;
using str=string;
using int128=__int128_t;
using ld=long double;
typedef unsigned int ui;
typedef unsigned long long ull;
#define Love<3 HerLoveForMeJustaDream
}
#define Lovesper_ ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
#define pll pair<ll,ll>
#define mll map<ll,ll>
#define vll vector<ll>
#define pb push_back
#define all(c) c.begin(),c.end()
#define fi first
#define se second
#define debug cout<<"I Love You\n";
#define fu(i,a,b) for(ll i=a;i<=b;i++)
#define fd(i,a,b) for(int i=a;i>=b;i--)
#define fa(i,s) for(auto&i:s)
#define Bitc(x,i) (((x)>>(i))&1)
#define _log(_x) 63-__builtin_clzll(_x)
#define LoveTime chrono::steady_clock::now().time_since_epoch().count()
const pll dxy4[]={{-1,0},{0,-1},{0,1},{1,0}};
const pll dxy8[]={{-1,-1},{-1,0},{-1,1},{0,-1},{0,1},{1,-1},{1,0},{1,1}};
constexpr ll Mod=1e9+7;
constexpr ll mxn=1e6+7,mxm=3e3+7;
constexpr long long inf=(1ll<<31);
constexpr ll lnf=(1ll<<60);
struct __TS {
~__TS() {
// cerr<<"Time elapsed: "<<clock()*1.0/CLOCKS_PER_SEC<<'\n';
}
}__ts;
mt19937 rng(LoveTime);
#define setup ((1<<3)-1>>1)
void OpenLove(const str&name){
// I'm So Lonely. I am Trying To Get Out This Lonely With Her Love
Lovesper_
if(fopen((name+".inp").c_str(),"r")){
// freopen((name+".test").c_str(),"r",stdin);
freopen((name+".inp").c_str(),"r",stdin);
freopen((name+".out").c_str(),"w",stdout);
}
}
template<class X,class Y>bool maximize(X&x,const Y&y){X eps=1e-18;if(x+eps<y){x=y;return 1;}return 0;}
template<class X,class Y>bool minimize(X&x,const Y&y){X eps=1e-18;if(x>y+eps){x=y;return 1;}return 0;}
ostream&operator<<( std::ostream& dest, __int128_t value){
ostream::sentry s(dest);__uint128_t tmp=value<0?-value:value;
char buffer[128];char*d=end(buffer);
do{d--;*d="0123456789"[tmp%10];tmp/=10;}while(tmp);
if(value<0)d--,*d='-';ll len=end(buffer)-d;
if(dest.rdbuf()->sputn(d,len)!=len)dest.setstate(ios_base::badbit);
return dest;
}
struct custom_hash{
size_t operator()(uint64_t x)const{
static const uint64_t HashRand=LoveTime;
x^=HashRand;return x^(x>>16);
}};
int64_t add(ll&a,ll b){a+=b;if(a>=Mod)a%=Mod;while(a<0)a+=Mod;return a;}
int64_t mul(ll&a,ll b,ll mod){a=1ll*a*b%mod;return a;}
int64_t mpow(ll a,ll b,ll mod){ll ans=1;for(;b;b>>=1,a=mul(a,a,mod))if(b&1)ans=mul(ans,a,mod);return ans;}
ll n,q,f[mxn],g[mxn],pri[int(1e7+7)];
vector<pll>graph[mxn];
void process(){
fu(i,2,1e7+3)
if(!pri[i])for(ll j=i*i;j<=1e7+3;j+=i)pri[j]=i;
fu(i,1,1e7+3)if(!pri[i])pri[i]=i;
}
void Lovesper(const ll&TestCase){
ll l,r;cin>>l>>r;
auto get=[&](ll n){
ll ans=1,m=n;
while(n>1){
ll x=pri[n];
ll cr=1,gf=1;
while(n%x==0){
n/=x;gf*=x;
cr+=gf;
}
ans*=cr;
}
return abs(2*m-ans);
return ans;
};
ll sad=0;
fu(i,l,r)sad+=get(i);
cout<<sad;
}
signed main(int argc, char const *argv[]){
OpenLove("lovesper");
process();
int tt=1;
// cin>>tt;
for(ll i=1;i<=tt;i++){
Lovesper(i);
if(i<tt)cout<<'\n';
}
return false;
}
Compilation message
savrsen.cpp:14:13: warning: ISO C++11 requires whitespace after the macro name
14 | #define Love<3 HerLoveForMeJustaDream
| ^~~~
savrsen.cpp: In function 'std::ostream& operator<<(std::ostream&, __int128)':
savrsen.cpp:67:5: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
67 | if(value<0)d--,*d='-';ll len=end(buffer)-d;
| ^~
savrsen.cpp:67:27: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
67 | if(value<0)d--,*d='-';ll len=end(buffer)-d;
| ^~
savrsen.cpp: In function 'void OpenLove(const str&)':
savrsen.cpp:56:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
56 | freopen((name+".inp").c_str(),"r",stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
savrsen.cpp:57:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
57 | freopen((name+".out").c_str(),"w",stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
86 ms |
102992 KB |
Output is correct |
| 2 |
Correct |
89 ms |
103108 KB |
Output is correct |
| 3 |
Correct |
91 ms |
103240 KB |
Output is correct |
| 4 |
Correct |
89 ms |
102992 KB |
Output is correct |
| 5 |
Correct |
430 ms |
103240 KB |
Output is correct |
| 6 |
Correct |
500 ms |
103228 KB |
Output is correct |
| 7 |
Correct |
450 ms |
102992 KB |
Output is correct |
| 8 |
Correct |
195 ms |
103220 KB |
Output is correct |
