Pls tell the mistake in this code

#1

#include
using namespace std;

void optimisedPrimes(long long integer p,long long integer n,long long integer key)
{
for(long long integer i=2;i<=n;i++)
{
p[i]=1;
}
for(long long integer i=4;i<=n;i+=2)
{
p[i]=0;
}
for(long long integer i=3;i<=n;i+=2)
{
if(p[i])
{
for(long long integer j=ii;j<=n;j+=i)
{
p[j]=0;
}
}
}
p[0]=0;
p[1]=0;
long long integer count=0;

for(long long integer i=0;i<=n;i++)
{
	if(p[i])
    {
	count++;
    if(count==key)
    {
        cout<<i;
    }
    }
}

}

int main()
{
long long integer p[5000000]={0};
long long integer key;
cin>>key;

optimisedPrimes(p,500000,key);

return 0;

}

#2

hey @angivanshikaangi question ask you find max 500000th prime number. Now this surely at index greater than 500000 in prime seive.

Example if n=2, than also you need prime seive of least size 4 so that index i=3 will indicate prime number.

So increase the size of array.

#3

yes i tried but i am still getting the error. I am still getting run time error
can u plss suggest me the corrections in the code
#include
using namespace std;

void optimisedPrimes(int p,long long int n,int key)
{
for(int i=2;i<=n;i++)
{
p[i]=1;
}
for(int i=4;i<=n;i+=2)
{
p[i]=0;
}
for(int i=3;i<=n;i+=2)
{
if(p[i])
{
for(int j=ii;j<=n;j+=i)
{
p[j]=0;
}
}
}
p[0]=0;
p[1]=0;
int count=0;

for(int i=0;i<=n;i++)
{
	if(p[i])
    {
	count++;
    if(count==key)
    {
        cout<<i<<endl;
    }
    }
}

}

int main()
{
int p[100000000]={0};
int t;
cin>>t;
while(t–)
{
int key;
cin>>key;

optimisedPrimes(p,1000000000,key);
}

return 0;

}

#4

hey @angivanshikaangi, please share me the code saved in codingblocks ide so that I debug it for you.

#5
#6

hey @angivanshikaangi, your prime seive is not correct. I have made changes to your code only. You can check them here. https://ide.codingblocks.com/s/105972

#7

hey@Gaurav13998
i am still getting rum time error

error
error691×455 18.5 KB

#8

hey @angivanshikaangi, these i,j, count, key, p all should also be of type long long int. Sorry I skipped that. Here is your modified code https://ide.codingblocks.com/s/105972

#9

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