摘要:
文件写入 BufferedWriter out = new BufferedWriter(new FileWriter("nowcoder.txt")); out.write("牛客教程"); out.close(); 文件读取 BufferedReader in = new BufferedRea 阅读全文
posted @ 2020-07-27 16:25
Luas
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public class Solution { public int NumberOf1Between1AndN_Solution(int n) { int i=0; int a= (int) Math.pow(10,i); while(a<=n){ i=i+1; a=(int) Math.pow( 阅读全文
posted @ 2020-07-25 14:40
Luas
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绝对最佳答案及分析: public class Solution { public int NumberOf1(int n) { int count = 0; while(n!= 0){ count++; n = n & (n - 1); } return count; } } 答案正确:恭喜!您提 阅读全文
posted @ 2020-07-24 20:54
Luas
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