Created
April 22, 2025 14:29
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| infix(struct node* p = { | |
| if (p ≠ NULL) { | |
| if (needParanthesis(p, false)) { | |
| printf("("); | |
| infix(p->lft); | |
| printf(")"); | |
| } else { | |
| infix(p->lft); | |
| } | |
| } | |
| printf(%c", p->val); | |
| if (needParanthesis(p, true) { | |
| printf("("); | |
| infix(p->rgt); | |
| printf(")"); | |
| } else { | |
| infix(p->rgt); | |
| } | |
| } |
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