题解 | #大数加法#
大数加法
https://www.nowcoder.com/practice/11ae12e8c6fe48f883cad618c2e81475
package com.hhdd;
/**
* @Author huanghedidi
* @Date 2022/8/23 22:24
*/
public class 大数加法 {
public static void main(String[] args) {
String res = solve("12315435", "4566876");
System.out.println("res = " + res);
}
/**
* 代码中的类名、方法名、参数名已经指定，请勿修改，直接返回方法规定的值即可
* 计算两个数之和
*
* @param s string字符串 表示第一个整数
* @param t string字符串 表示第二个整数
* @return string字符串
*/
public static String solve(String s, String t) {
// write code here
int cur = 0;
int jinwei = 0;
s = new StringBuilder(s).reverse().toString();
t = new StringBuilder(t).reverse().toString();
StringBuilder sb = new StringBuilder();
while (cur < s.length() && cur < t.length()) {
int i1 = Integer.parseInt(s.charAt(cur) + "");
int i2 = Integer.parseInt(t.charAt(cur) + "");
int tmp = i1 + i2 + jinwei;
jinwei = tmp / 10;
sb.append(tmp % 10);
cur++;
}
while (cur < s.length()) {
int i1 = Integer.parseInt(s.charAt(cur) + "");
int tmp = i1 + jinwei;
jinwei = tmp / 10;
sb.append(tmp % 10);
cur++;
}
while (cur < t.length()) {
int i2 = Integer.parseInt(t.charAt(cur) + "");
int tmp = i2 + jinwei;
jinwei = tmp / 10;
sb.append(tmp % 10);
cur++;
}
if (jinwei != 0){
sb.append(jinwei);
}
return sb.reverse().toString();
}
}
