Merge pull request #23 from AlgoLeadMe/5-honggukang0623

5-honggukang0623
AlgoLeadMe · Jun 27, 2024 · f85a3f1 · f85a3f1
2 parents df543fa + 3e10285
commit f85a3f1
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diff --git a/honggukang0623/README.md b/honggukang0623/README.md
@@ -4,4 +4,5 @@
 |:----:|:---------:|:----:|:-----:|:----:|
 | 1차시 | 2024.03.26 | 사칙연산 |[분수의덧셈]https://school.programmers.co.kr/learn/courses/30/lessons/120808  | [#5]https://github.com/AlgoLeadMe/AlgoLeadMe-10/pull/5 |
 | 2차시 | 2024.03.29 | 배열 |[배열두배만들기]https://school.programmers.co.kr/learn/courses/30/lessons/120809  | [#7]https://github.com/AlgoLeadMe/AlgoLeadMe-10/pull/7 |
-| 3차시 | 2024.04.05 | 배열 |[중앙값구하기]https://school.programmers.co.kr/learn/courses/30/lessons/120811#  | [#13]https://github.com/AlgoLeadMe/AlgoLeadMe-10/pull/13 |
+| 3차시 | 2024.04.05 | 배열 |[중앙값구하기]https://school.programmers.co.kr/learn/courses/30/lessons/120811#  | [#13]https://github.com/AlgoLeadMe/AlgoLeadMe-10/pull/13 |
+| 4차시 | 2024.04.09 | 출력 |[직각삼각형출력하기]https://school.programmers.co.kr/learn/courses/30/lessons/120823  | [#17]https://github.com/AlgoLeadMe/AlgoLeadMe-10/pull/17/commits|
diff --git a/honggukang0623/다항식 더하기/다항식 더하기.js b/honggukang0623/다항식 더하기/다항식 더하기.js
@@ -0,0 +1,36 @@
+function solution(polynomial) {
+    const values = polynomial.split(' + ');
+    console.log("values : ", values);
+    let x = 0;
+    let c = 0;
+    for(let i=0;i<values.length;i++) {
+        const item = values[i];
+        if(item[item.length-1] !== 'x') {
+            c += Number(item);
+        }
+        else {
+            // x일때
+            const num = item.split('x')[0];
+            if(num === '') {
+                x += 1;
+            } else {
+                x += Number(num)
+            }
+        }
+    }
+    let answer = '';
+    if(x === 1) {
+        answer += 'x';
+    }
+    if(x > 1) {
+        answer += `${x}x`;
+    }
+
+    if(x === 0 && c > 0) {
+        answer += c;
+    }
+    else if(c > 0) {
+        answer += ` + ${c}`;
+    }
+    return answer;
+}