121.买卖股票的最佳时机
classSolution{publicintmaxProfit(int[]prices){intmin=prices[0];intresult=0;for(inti=1;i<prices.length;i++){if(prices[i]>=min){if(result<prices[i]-min)result=prices[i]-min;}elsemin=prices[i];}returnresult;}}
classSolution{publicintmaxProfit(int[]prices){intmin=prices[0];intresult=0;for(inti=1;i<prices.length;i++){if(prices[i]>=min){if(result<prices[i]-min)result=prices[i]-min;}elsemin=prices[i];}returnresult;}}