39 lines
708 B
Plaintext
39 lines
708 B
Plaintext
var is_prime=func(x){
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for(var i=2;i<x;i+=1)
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if(x/i==int(x/i))
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return 0;
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return 1;
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}
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var is_prime_sqrt=func(x){
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for(var i=2;i<=math.sqrt(x);i+=1)
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if(x/i==int(x/i))
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return 0;
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return 1;
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}
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var primes=[];
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var filter=func(x){
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foreach(var i;primes){
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if(x/i==int(x/i))
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return 0;
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if(x>=i){
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for(var j=i+1;j<=math.sqrt(x);j+=1)
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if(x/j==int(x/j))
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return 0;
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append(primes,x);
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return 1;
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}
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}
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append(primes,x);
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return 1;
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}
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func(){
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var cnt=0;
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for(var i=2;i<50000;i+=1)
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if(filter(i))
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cnt+=1;
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println(cnt);
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}();
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