连续整数之和

连续整数之和

 1process.stdin.resume();  
 2process.stdin.setEncoding('utf-8');  
 3let input = '';  
 4  
 5process.stdin.on('data', (data) => {  
 6    input += data;  
 7});  
 8  
 9process.stdin.on('end', () => {  
10    const n = parseInt(input.trim(), 10);  
11  
12    function canBeExpressedAsConsecutiveSum(n) {  
13        for (let m = 2; m * m <= 2 * n; m++) {  
14            if ((2 * n) % m === 0) {  
15                const temp = (2 * n) / m;  
16                if ((temp - (m - 1)) % 2 === 0) {  
17                    return 'YES';  
18                }  
19            }  
20        }  
21        return 'NO';  
22    }  
23  
24    const result = canBeExpressedAsConsecutiveSum(n);  
25    console.log(result);  
26  
27    process.exit(0);  
28});
process.stdin.resume(); process.stdin.setEncoding('utf-8'); let input = ''; process.stdin.on('data', (data) => { input += data; }); process.stdin.on('end', () => { const n = parseInt(input.trim(), 10); function canBeExpressedAsConsecutiveSum(n) { for (let m = 2; m * m <= 2 * n; m++) { if ((2 * n) % m === 0) { const temp = (2 * n) / m; if ((temp - (m - 1)) % 2 === 0) { return 'YES'; } } } return 'NO'; } const result = canBeExpressedAsConsecutiveSum(n); console.log(result); process.exit(0); });

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