추운 계절을 버티라고 화분을 빨간 헝겊으로 감싸 두었네요. 길가에 놓인 작은 꽃다발 같습니다. 봄에 더 푸르게 피어나길 바라는 마음이겠지요.
I learned that for 4-SAT, if clause to variable ratio is more than 10, the generated problems become difficult to solve, and the likelihood of formula to be SAT or UNSAT is close to 50%. So I generated 3 types of formulas:
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Fri, 20 Feb 2026 20:32:04 UTC (381 KB)
放眼长远，习近平总书记深刻指出：“当前和今后相当长一个时期，要把修复长江生态环境摆在压倒性位置，共抓大保护，不搞大开发。”不尽长江滚滚来，比江河更深广的，是共产党人的格局远见。