greedy 13

• [LeetCode] #121 - Best Time to Buy and Sell Stock [Java][C++][Python] Sep 15, 2026
• [Codeforces] #2264B - Knife's Pill Farm [C++] Sep 14, 2026
• [Codeforces] #2260C - Maximize XOR, Minimize Operations [C++] Sep 9, 2026
• [Codeforces] #2259E - Treasure Map Destruction (Constructive Version) [C++] Sep 6, 2026
• [Codeforces] #2259C - 101 [C++] Sep 6, 2026
• [Programmers] #120837 - 개미 군단 [Java][C++][Python] Aug 25, 2026
• [BaekJoon] #10610 - 30 [Java][C++] Feb 24, 2026
• [BaekJoon] #10162 - 전자레인지 [Java][C++] Feb 1, 2026
• [BaekJoon] #16953 - A → B [Java][C++] Jan 31, 2026
• [BaekJoon] #2839 - 설탕 배달 [Java][C++] Jan 8, 2026
• [BaekJoon] #26099 - 설탕 배달 2 [Java][C++] Jan 8, 2026
• [BaekJoon] #2720 - 세탁소 사장 동혁 [Java][C++] Dec 11, 2025
• [BaekJoon] #11047 - 동전 0 [Java][C++] Dec 11, 2025