回答編集履歴
1
追記
answer
CHANGED
|
@@ -1,6 +1,15 @@
|
|
|
1
1
|
普通に考えれば、
|
|
2
2
|
```JavaScript
|
|
3
3
|
function rabc(){
|
|
4
|
+
const r = Math.random();
|
|
5
|
+
if(r<0.8) return "A";
|
|
6
|
+
if(r<0.8+0.195) return "B";
|
|
7
|
+
return "C";
|
|
8
|
+
}
|
|
9
|
+
```
|
|
10
|
+
テーブルにすると、
|
|
11
|
+
```JavaScript
|
|
12
|
+
function rabc(){
|
|
4
13
|
const a = [0.8,"A",0.8+0.195,"B",1,"C"];
|
|
5
14
|
const r = Math.random();
|
|
6
15
|
for(let i=0; i<a.length; i+=2){
|