[알고리즘] 백준 25304 "영수증"

let fs = require("fs");

let input = fs.readFileSync("/dev/stdin").toString().split("\n");

const result = Number(input[0]);

const count = Number(input[1]);

input.splice(0, 2);

let check = 0;

for (let i = 0; i < count; i++) {
  let [price, num] = input[i].split(" ");
  check += Number(price) * Number(num);
}

if (result === check) {
  console.log("Yes");
} else {
  console.log("No");
}

const result = Number(input[0]);

let check = 0;

input.forEach((data, index) => {
  if (index > 1) {
    let [price, num] = data.split(" ");
    check += Number(price) * Number(num);
  }
});

if (result === check) {
  console.log("Yes");
} else {
  console.log("No");
} // => 이건 왜 틀렸지?