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  1. const fs = require('fs');
  2. const input = fs.readFileSync('/dev/stdin').toString().split(" ");
  3.  
  4. const A = Number(input[0]); // 고정비용
  5. const B = Number(input[1]); // 가변비용
  6. const C = Number(input[2]); // 판매비용
  7.  
  8. if(B >= C) console.log(-1);
  9. else {
  10.     let count = 1;
  11.     while(true) {
  12.         if(A+B * count < C * count) {
  13.             break;
  14.         }
  15.         count++;
  16.     }
  17.     console.log(count);
  18. }
  19.  
Success #stdin #stdout 4.45s 33344KB
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stdin
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2100000000 9 10
stdout
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2100000001
https://ideone.com/ft6vXj
language:
Node.js (node 11.12.0)
created:
1 year ago
visibility:
public

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