19 lines
366 B
JavaScript
19 lines
366 B
JavaScript
const s = require("fs").readFileSync(0,"utf8").toString().trim().split('\n');
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const num = s[1].split(' ').map(Number);
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let count = 0;
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for(let n of num) {
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if(n==1) continue;
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let isPrime = true;
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for(let i=2; i*i<=n; i++){
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if(n%i==0){
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isPrime = false;
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break;
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}
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}
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if(isPrime) count++;
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}
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console.log(count); |