๐ŸŽฒ๋ฐฑ์ค€ 2156๋ฒˆ ํฌ๋„์ฃผ ์‹œ์‹

Jeongeunยท2023๋…„ 3์›” 29์ผ
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๋ฐฑ์ค€ 2156๋ฒˆ

์ฝ”๋“œ

const fs = require('fs'); 
const input = fs.readFileSync('/dev/stdin').toString().trim().split("\n").map(Number);

const n = input[0];

const dp = new Array(n+1).fill(0);

dp[1] = input[1];
dp[2] = input[1] + input[2];
dp[3] = Math.max(input[1]+input[2],input[2]+input[3],input[1]+input[3]);

for (let i = 4; i <= n; i++) {
  dp[i] = Math.max(
    dp[i - 1],//i๋ฒˆ์งธ๋ฅผ ์•ˆ๋งˆ์‹œ๋Š” ๊ฒฝ์šฐ
    dp[i - 3] + input[i] + input[i - 1],//i๋ฒˆ์งธ๋ฅผ ๋งˆ์‹œ๊ณ  i-1๋ฒˆ์งธ๋ฅผ ๋งˆ์‹œ๋Š” ๊ฒฝ์šฐ
    dp[i - 2] + input[i]//i๋ฒˆ์งธ๋ฅผ ๋งˆ์‹œ๊ณ  i-1๋ฒˆ์งธ๋ฅผ ์•ˆ๋งˆ์‹œ๋Š” ๊ฒฝ์šฐ
  );
}

console.log(dp[n]);

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