编写程序来解析分子并获得原子数。示例...输入（字符串）输出（映射）C6H12OH {C = 6，O = 1，H = 13} fe2cl3 {cl = 3，fe = 2} [英] Write a program to parse the molecule and get the atoms count. Example...input (string) output (map) C6H12OH {C=6, O=1, H=13} fe2cl3 {cl=3, fe=2}

问题描述

你可以帮我写上面这个节目。



我尝试过的事情：



i已经尝试过，但是无法做到。

you can help me to write this above program.

What I have tried:

i have tried , but not able to do.

推荐答案

如果你停下来思考它，这不是一个难题。

- 创建两个数组，一个用于保存字符，另一个用于保存值。

- 依次从字符串中取出每个字符。

- 如果数组中不存在该字符，然后将其添加到数组中。

- 将整数变量设置为1.

- 如果字符后跟一个或多个数字，然后将整数变量设置为数字的值。

- 将整数变量的值添加到与当前字符条目对应的值。

- 重复直到字符串结束。



唯一的问题是你如何决定一个元素是否有多个字符来代表它。

This is not a difficult problem if you stop and think about it.
- Create two arrays, one to hold the characters and one to hold the values.
- Take each character from the string in turn.
- If the character does not exist in the array, then add it to the array.
- Set an integer variable to 1.
- If the character is followed by one or more digits, then set the integer variable to the value of the digits.
- Add the value of the integer variable to the value corresponding to the current character entry.
- Repeat until the end of the string.

The only problem is how you decide whether an element has more than one character to represent it.

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