2018-2019-2 20,175,310 individual project reports 1-- narcissistic number
definition:
Refers to a number of daffodils nbits （n≥3 ）, on each of its digital bit npower equals itself（例如：1^3 + 5^3+ 3^3 = 153）
demand analysis:
According to the definition of the number of daffodils, it was designed and implemented in the Java language.
Design and Implementation:
Since the number of daffodils is at least three-digit numbers, so I realized that include 100-999all numbers between daffodils.
Pseudo-code as follows:
1、将要判断的数除以100，求得该数的百位b。
2、将该数减去百位b*100，然后再除以10，求得十位s。
3、用该数减去百位b*100再减去十位s*10，得到个位数g。
4、判断百位b的三次方加百位b的三次方加个位数g的三次方是否与原来的数相等，若相等则输出，否则计算下一个数。
5、输出100-999之间水仙花数的个数Difficulties Summary:
This program is very simple, there is only one main class, what did not call, and last year, when learning C also written several daffodils, which can be realized without any problems.
Screenshot operating results:
Cloud link code
PSP time
| step | Consuming (min) | percentage |
|---|---|---|
| demand analysis | 10 | 11% |
| design | 15 | 16% |
| Code | 25 | 27% |
| test | 10 | 11% |
| analysis Summary | 30 | 32% |