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POWhat is wrong with the delete section?
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14566984
data
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14567413
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ClosedDate
2013-01-28T18:46:02.130
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2013-01-28T16:51:13.743
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2013-01-28T17:12:22.710
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2013-01-28T17:03:58.397
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text
Body
<p>Here is my code. The problem that I am getting is that I can't make work the deleter part. I want to delete one element of the structure. Here is a basic structure that you add, search and delete elements that are added. Also the elements are sorted in increasing order.</p> <pre><code>#include <iostream> using namespace std; struct el { int key; el *next; } *start; void init(); void add(int n); void list(); void search(int n); // ima za dopylvane void deleter(int n); void main() { init(); int n, num; do { cout << "\n Menu\n"; cout << "\n1 - Add element"; cout << "\n2 - List elements"; cout << "\n3 - Searching for element"; cout << "\n4 - Delete element"; cout << "\n5 - Exit"; cout << "\n Your choice:"; cin >> n; switch (n) { case 1: { cout << "\n Input num:"; cin >> num; add(num); break; } case 2: { list(); break; } case 3: { cout << "\n Input num for searching:"; cin >> num; search(num); break; } case 4: { cout << "\n Input num for deleting:"; cin >> num; deleter(num); break; } } } while (n != 5); } void list() { el *p = start; if (start) while (p) { cout << p->key << " "; p = p->next; } else cout << "\n Empty list"; } void init() { start = NULL; } void add(int n) { el *p = start; if (!start) { start = new el; start->key = n; start->next = NULL; } else { if (start->key > n) { start = new el; start->key = n; start->next = p; } else { el * q; while ((p->key < n) && (p->next)) { q = p; p = p->next; } if (p->key > n) { el *s; s = new el; s->key = n; s->next = p; q->next = s; } else { el *s; s = new el; s->key = n; s->next = NULL; p->next = s; } } } } void search(int n) { el *p = start; if (!start) cout << "\nEmpty list!"; else while ((p->key != n) && (p-> next)) p = p->next; if (p->key == n) cout << "\nYes!"; else cout << "\nNo!"; } void deleter(int n) { el *p = start; if (!start) cout << "Enfsad"; else while ((p->key != n) && (p->next)) { n = start->key; start = start->next; delete p; } } </code></pre>
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<c++><visual-studio-2010>
Title
What is wrong with the delete section?
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1. USZhivko Kabaivanov
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