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题解 | #求1+2+3+...+n#
来自专栏
public class Solution { public int Sum_Solution(int n) { boolean flag=(n>1)&&((n+=Sum_Solution(n-1))>0); return n; } }
Java
2022-01-18
0
203
题解 | #数值的整数次方#
来自专栏
public class Solution { public double Power(double base, int exponent) { if (exponent < 0) { base = 1 / base; exponent = -exponent; } double x = ba...
Java
2022-01-18
0
243
题解 | #不用加减乘除做加法#
来自专栏
public class Solution { public int Add(int num1,int num2) { while(num2 != 0){//进位为0时,跳出循环 int sum = num1^num2;//非进位求和 int temp = (num1&num2)<&l...
Java
2022-01-18
0
286
题解 | #有重复项数字的所有排列#
来自专栏
import java.util.*; public class Solution { public ArrayList<ArrayList> res = new ArrayList<>(); public ArrayList<ArrayList> permute...
Java
2022-01-17
0
306
题解 | #最长公共子序列(二)#
import java.util.*; public class Solution { /** * longest common subsequence * @param s1 string字符串 the string * @param s2 string字符串 the string * @retu...
Java
2022-01-17
0
215
题解 | #二分查找-II#
来自专栏
import java.util.*; import java.io.BufferedReader; import java.io.InputStreamReader; import java.util.ArrayList; import java.util.Arrays; import java....
Java
2022-01-17
0
194
题解 | #数列还原#
来自专栏
import java.io.; import java.util.; public class Main { public static int res = 0; public static int[] nums, cands; public static boolean[] seen; publ...
Java
2022-01-17
0
430
题解 | #不要二#
来自专栏
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; public class Main { public static void main(String[] args...
Java
2022-01-17
0
380
题解 | #表达式求值#
来自专栏
import java.io.; public class Main { public static void main(String[] args) throws IOException{ BufferedReader bf = new BufferedReader(new InputStream...
Java
2022-01-17
0
261
题解 | #统计回文#
来自专栏
import java.io.BufferedReader; import java.io.InputStreamReader; import java.io.IOException; public class Main{ public static void main(String[] args)...
Java
2022-01-17
0
316
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