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1 | sclass PosNeg<A> {
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2 | new MultiSet<A> pos; |
3 | new MultiSet<A> neg; |
4 | |
5 | *() {}
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6 | *(Iterable<A> pos, Iterable<A> neg) {
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7 | this.pos.addAll(pos); |
8 | this.neg.addAll(neg); |
9 | } |
10 | |
11 | *(Iterable<Pair<A, Bool>> pairs) {
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12 | fOr (Pair<A, Bool> p : pairs) |
13 | add(p.a, p.b); |
14 | } |
15 | |
16 | *(Map<A, Bool> map) {
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17 | fOr (A a, Bool b : map) |
18 | add(a, b); |
19 | } |
20 | |
21 | void add(A a, int score) {
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22 | if (score > 0) |
23 | pos.add(a, score); |
24 | else if (score < 0) |
25 | neg.add(a, -score); |
26 | } |
27 | |
28 | void add(A a, Bool b) {
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29 | if (isTrue(b)) |
30 | pos.add(a); |
31 | else if (isFalse(b)) |
32 | neg.add(a); |
33 | } |
34 | |
35 | int get(A a) {
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36 | ret pos.get(a)-neg.get(a); |
37 | } |
38 | |
39 | int score() { ret l(pos)-l(neg); }
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40 | int n() { ret l(pos)+l(neg); }
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41 | int nPos() { ret l(pos); }
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42 | int nNeg() { ret l(neg); }
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43 | bool isEmpty() { ret n() == 0; }
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44 | bool perfect() { ret nPos() != 0 && nNeg() == 0; }
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45 | bool antiPerfect() { ret nPos() == 0 && nNeg() != 0; }
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46 | |
47 | toString {
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48 | ret "+" + nPos() + "/-" + nNeg() + ": " + pos + " / " + neg; |
49 | } |
50 | } |
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| Snippet ID: | #1010411 |
| Snippet name: | PosNeg - positive MultiSet + negative MultiSet |
| Eternal ID of this version: | #1010411/15 |
| Text MD5: | d4ea5ae779490183441d7d171fd848b0 |
| Transpilation MD5: | 847b61b3f5036b7c666268795057f9f6 |
| Author: | stefan |
| Category: | javax |
| Type: | JavaX fragment (include) |
| Public (visible to everyone): | Yes |
| Archived (hidden from active list): | No |
| Created/modified: | 2020-07-06 00:32:30 |
| Source code size: | 1057 bytes / 50 lines |
| Pitched / IR pitched: | No / No |
| Views / Downloads: | 757 / 1509 |
| Version history: | 14 change(s) |
| Referenced in: | [show references] |