/***
Md. Namzul Hasan
Shahjalal University of Science & Technology,Sylhet.
hasan08sust@gmail.com
***/
#include<bits/stdc++.h>
using namespace std ;
typedef long long ll ;
typedef int in ;
typedef unsigned long long ull ;
const double pi = 2*acos(0) ;
#define maxi 40000
#define pf printf
#define sc scanf
#define pb push_back
#define MEM(x,y) (memset((x),(y),sizeof(x)))
#define MIN(x,y) ((x) < (y) ? (x) : (y))
#define MAX(x,y) ((x) > (y) ? (x) : (y))
#define load(array,size) for(int i=0 ; i<size ; i++) cin>>array[i] ;
#define new_line pf("\n")
#define clear_data(array) memset(array,0,sizeof(array))
#define highest_int 2147483647
vector<int> data ;
bool isPrime(int n)
{
int i ;
if(n<2)
return false ;
else if(n==2)
return true ;
else if(n%2==0)
return false ;
else
{
for(i=3 ; i<=sqrt(n) ; i++)
{
if(n%i==0)
{
return false ;
}
}
return true ;
}
}
int main()
{
int i,value ;
for(i=2 ; i<=10000 ; i++)
{
if(isPrime(i))
data.pb(i) ;
}
int test,n ,prime,x,p,mx;
sc("%d",&test) ;
while(test--)
{
sc("%d",&n) ;
mx =0 ;
for(i=0 ;i<data.size() ; i++)
{
x = data[i] ;
if(x>n)
break ;
p = n/x ;
value = n - (p*x) ;
if(value>mx)
{
prime = x ;
mx = value ;
}
}
pf("%d\n",prime) ;
}
return 0;
}
Md. Namzul Hasan
Shahjalal University of Science & Technology,Sylhet.
hasan08sust@gmail.com
***/
#include<bits/stdc++.h>
using namespace std ;
typedef long long ll ;
typedef int in ;
typedef unsigned long long ull ;
const double pi = 2*acos(0) ;
#define maxi 40000
#define pf printf
#define sc scanf
#define pb push_back
#define MEM(x,y) (memset((x),(y),sizeof(x)))
#define MIN(x,y) ((x) < (y) ? (x) : (y))
#define MAX(x,y) ((x) > (y) ? (x) : (y))
#define load(array,size) for(int i=0 ; i<size ; i++) cin>>array[i] ;
#define new_line pf("\n")
#define clear_data(array) memset(array,0,sizeof(array))
#define highest_int 2147483647
vector<int> data ;
bool isPrime(int n)
{
int i ;
if(n<2)
return false ;
else if(n==2)
return true ;
else if(n%2==0)
return false ;
else
{
for(i=3 ; i<=sqrt(n) ; i++)
{
if(n%i==0)
{
return false ;
}
}
return true ;
}
}
int main()
{
int i,value ;
for(i=2 ; i<=10000 ; i++)
{
if(isPrime(i))
data.pb(i) ;
}
int test,n ,prime,x,p,mx;
sc("%d",&test) ;
while(test--)
{
sc("%d",&n) ;
mx =0 ;
for(i=0 ;i<data.size() ; i++)
{
x = data[i] ;
if(x>n)
break ;
p = n/x ;
value = n - (p*x) ;
if(value>mx)
{
prime = x ;
mx = value ;
}
}
pf("%d\n",prime) ;
}
return 0;
}
No comments:
Post a Comment