不是demo，不是练习，而是真实的、能用到日常工作中的技能。
拉里贾尼指出，以色列实施严格的媒体审查，恰恰说明伊朗导弹袭击造成的影响范围广泛且后果严重。
，推荐阅读新收录的资料获取更多信息
What Is To Be Done?，这一点在新收录的资料中也有详细论述
Layer 1: Unfixing. During the initial constraint propagation, if a neighbor cell creates a contradiction, the solver converts it from a fixed constraint back into a solvable cell. Its own neighbors (two cells out — "anchors") become the new constraints. This is cheap and handles easy cases.