When North Korea’s ruling party held a top-level meeting this month there were predictable boasts of unstoppable nuclear development and, more unexpectedly, a suggestion by Kim Jong-un that his country and the US “could get along” – provided that Washington recognised North Korea as a legitimate nuclear power.
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Equal: Every domino half in this space must be the same number of pips.
int j = high; // 从右向左找小于pivot的