diff --git "a/kuni/week6/\354\213\244\355\214\250\354\234\250.js" "b/kuni/week6/\354\213\244\355\214\250\354\234\250.js"
new file mode 100644
index 0000000..584313a
--- /dev/null
+++ "b/kuni/week6/\354\213\244\355\214\250\354\234\250.js"
@@ -0,0 +1,17 @@
+function solution(N, stages) {
+  let answer = [];
+  let people = stages.length;
+
+  for (let i = 1; i <= N + 1; i++) {
+    let tmp = stages.filter((n) => n === i).length;
+    answer.push([i, tmp / people]);
+    people -= tmp;
+  }
+  answer.pop();
+  answer = answer.sort((a, b) => b[1] - a[1]);
+  return answer.map((a) => a[0]);
+}
+
+const N = 5;
+const stages = [2, 1, 2, 6, 2, 4, 3, 3];
+console.log(solution(N, stages));
diff --git "a/kuni/week6/\354\227\206\353\212\224 \354\210\253\354\236\220 \353\215\224\355\225\230\352\270\260.js" "b/kuni/week6/\354\227\206\353\212\224 \354\210\253\354\236\220 \353\215\224\355\225\230\352\270\260.js"
new file mode 100644
index 0000000..bbb8c07
--- /dev/null
+++ "b/kuni/week6/\354\227\206\353\212\224 \354\210\253\354\236\220 \353\215\224\355\225\230\352\270\260.js"	
@@ -0,0 +1,10 @@
+function solution(numbers) {
+  let answer = 0;
+  const fullNumber = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9];
+  const filteredNumber = fullNumber.filter(
+    (num) => numbers.includes(num) !== true
+  );
+
+  answer = filteredNumber.reduce((prev, cur) => prev + cur);
+  return answer;
+}
diff --git "a/kuni/week6/\354\262\264\354\234\241\353\263\265.js" "b/kuni/week6/\354\262\264\354\234\241\353\263\265.js"
new file mode 100644
index 0000000..d84b5c5
--- /dev/null
+++ "b/kuni/week6/\354\262\264\354\234\241\353\263\265.js"
@@ -0,0 +1,26 @@
+function solution(n, lost, reserve) {
+  lost.sort((a, b) => a - b);
+  reserve.sort((a, b) => a - b);
+
+  const realLost = lost.filter((man) => !reserve.includes(man));
+  const realReserve = reserve.filter((man) => !lost.includes(man));
+  let answer = n - realLost.length;
+
+  realLost.forEach((man) => {
+    if (realReserve.includes(man - 1)) {
+      realReserve.splice(
+        realReserve.findIndex((val) => val === man - 1),
+        1
+      );
+      answer++;
+    } else if (realReserve.includes(man + 1)) {
+      realReserve.splice(
+        realReserve.findIndex((val) => val === man + 1),
+        1
+      );
+      answer++;
+    }
+  });
+
+  return answer;
+}