10.19: sort, BigInt(카드)

baekjoon/11652.js

@@ -0,0 +1,39 @@
+// 카드 : 정렬
+const arr = require("fs")
+  .readFileSync("/dev/stdin")
+  .toString()
+  .trim()
+  .split("\n")
+  // BigInt 배열
+  .map((v) => BigInt(v));
+const n = arr.shift();
+// BigInt sort
+const sorted = arr.sort((a, b) => {
+  if (a > b) return 1;
+  else if (a < b) return -1;
+  else return 0;
+});
+let currValue = BigInt(arr[0]);
+let currCount = 1;
+let answerValue = -Infinity;
+let answerCount = -Infinity;
+
+for (let i = 1; i < sorted.length; i++) {
+  if (BigInt(sorted[i]) === currValue) currCount++;
+  else {
+    if (currCount > answerCount) {
+      answerCount = currCount;
+      answerValue = currValue;
+    }
+    currValue = BigInt(sorted[i]);
+    currCount = 1;
+  }
+}
+
+// 값이 변할 때 answer count를 바꿔줬기 때문에, 마지막 값은 바뀌지 않을 것이므로 마지막에 한 번 더 실행
+if (currCount > answerCount) {
+  answerCount = currCount;
+  answerValue = BigInt(currValue);
+}
+
+console.log(String(answerValue));