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本文實例為大家分享了C語言實現順序表的具體代碼,供大家參考,具體內容如下
seqlist.h
#ifndef __SEQLIST_H__ #define __SEQLIST_H__ #include<cstdio> #include<malloc.h> #include<assert.h> #define SEQLIST_INIT_SIZE 8 #define INC_SIZE 3 //空間增量的大小 typedef int ElemType; typedef struct Seqlist { ElemType *base; int capacity; //順序表容量 int size; //表的大小 }Seqlist; bool Inc(Seqlist *list);//增加順序表的容量 void InitSeqlist(Seqlist *list); //初始化順序表 void push_back(Seqlist *list, ElemType x); //在順序表的末尾插入元素 void push_front(Seqlist *list, ElemType x); //在順序表的頭部插入元素 void show_list(Seqlist *list); //顯示順序表中的元素 void pop_back(Seqlist *list); //刪除順序表最后一個元素 void pop_front(Seqlist *list); //刪除順序表第一個元素 void insert_pos(Seqlist *list, int pos, ElemType x);//在順序表的選定位置上插入數據 int find(Seqlist *list, ElemType key); //在順序表中查找元素key的下標 int length(Seqlist *list);//求順序表的長度 void delete_pos(Seqlist *list, int pos); //刪除順序表中特定位置的數據元素 void delete_val(Seqlist *list, int key);//刪除順序表中值為key的數據元素 void sort(Seqlist *list);//冒泡排序 void reverse(Seqlist *list);//逆置順序列表 void clear(Seqlist *list);//清除順序表中的所有元素 void destroy(Seqlist *list);//摧毀順序表 void merge(Seqlist *lt, Seqlist *la, Seqlist *lb);//合并兩個順序列表 #endif //__SEQLIST_H__
seqlist.cpp
#include"seqlist.h" bool Inc(Seqlist *list) { ElemType *newbase = (ElemType*)realloc(list, sizeof(ElemType)*(list->capacity + INC_SIZE)); //重新分配內存空間 if (newbase == NULL) { printf("內存空間已滿,無法再分配內存空間!\n"); return false; } list->base = newbase; list->capacity += INC_SIZE; return true; } void InitSeqlist(Seqlist *list) { list->base = (ElemType*)malloc(sizeof(ElemType)*SEQLIST_INIT_SIZE); assert(list->base != NULL); list->capacity = SEQLIST_INIT_SIZE; list->size = 0; } void push_back(Seqlist *list, ElemType x) { if (list->size >= list->capacity && !Inc(list)) { //Inc(list)用來判斷增加順序表容量是否成功,只有在失敗的情況下才會進入if語句中 printf("順序表容量已滿,無法再在表尾繼續插入新元素!\n"); return; } list->base[list->size] = x; list->size++; } void push_front(Seqlist *list, ElemType x) { if (list->size >= list->capacity && !Inc(list)) { printf("順序表容量已滿,無法再在表頭插入新元素!\n"); return; } for (int i = list->size;i > 0;i--) { list->base[i] = list->base[i - 1]; } list->base[0] = x; list->size++; } void show_list(Seqlist *list) { for (int i = 0;i < list->size;i++) { printf("%d ", list->base[i]); } printf("\n"); } void pop_back(Seqlist *list) { if (list->size == 0) { printf("順序表已空,無法再在表尾刪除元素!\n"); return; } list->size--; } void pop_front(Seqlist *list) { if (list->size == 0) { printf("順序表已空,無法再在表頭刪除元素!\n"); return; } for (int i = 0;i < list->size - 1;i++) { list->base[i] = list->base[i + 1]; } list->size--; } void insert_pos(Seqlist *list, int pos, ElemType x) { if (pos<0 || pos>list->size) { printf("插入位置不合法,無法插入元素!\n"); return; } if (list->size >= list->capacity && !Inc(list)) { printf("順序表容量已滿,無法在插入新的元素!\n"); return; } for (int i = list->size;i > pos;i--) { list->base[i] = list->base[i - 1]; } list->base[pos] = x; list->size++; } int find(Seqlist *list, ElemType key) { for (int i = 0;i < list->size;i++) { if (list->base[i] == key) return i; } return -1; } int length(Seqlist *list) { return list->size; } void delete_pos(Seqlist *list, int pos) { if (pos < 0 || pos >= list->size) { printf("刪除位置不合法,無法刪除元素!\n"); return; } for (int i = pos;i < list->size - 1;i++) { list->base[i] = list->base[i + 1]; } list->size--; } void delete_val(Seqlist *list, int key) { int pos = find(list, key); if (pos == -1) { printf("順序表中沒有這個元素!\n"); return; } delete_pos(list, pos); } void sort(Seqlist *list) { for (int i = 0;i < list->size - 1;i++) {//排序的趟數(例如5個數據需要比較4趟) for (int j = 0;j < list->size - 1 - i;j++) {//每一趟比較中的比較次數(例如5個數據在第0趟需要比較4次) if (list->base[j] > list->base[j + 1]) { ElemType temp = list->base[j]; list->base[j] = list->base[j + 1]; list->base[j + 1] = temp; } } } } void reverse(Seqlist *list) { if (list->size == 0 || list->size == 1) return; int low = 0, high = list->size - 1; while (low < high) { ElemType temp = list->base[low]; list->base[low] = list->base[high]; list->base[high] = temp; low++; high--; } } void clear(Seqlist *list) { list->size = 0; } void destroy(Seqlist *list) { free(list->base); list->base = NULL; list->capacity = 0; list->size = 0; } void merge(Seqlist *lt, Seqlist *la, Seqlist *lb) { lt->capacity = la->size + lb->size; lt->base = (ElemType*)malloc(sizeof(ElemType)*lt->capacity); assert(lt->base != NULL); int ia = 0, ib = 0, ic = 0; while (ia < la->size&&ib < lb->size) { if (la->base[ia] < lb->base[ib]) { lt->base[ic++] = la->base[ia++]; } else { lt->base[ic++] = lb->base[ib++]; } } while (ia < la->size) { lt->base[ic++] = la->base[ia++]; } while (ib < lb->size) { lt->base[ic++] = lb->base[ib++]; } lt->size = la->size + lb->size; show_list(lt); }
main.cpp
#include"seqlist.h" void main() { Seqlist list; InitSeqlist(&list); ElemType item; int pos; int select = 1; while (select) { printf("*******************************************\n"); printf("*[1] push_back [2] push_front *\n"); printf("*[3] show_list [4] pop_back *\n"); printf("*[5] pop_front [6] insert_pos *\n"); printf("*[7] find [8] length *\n"); printf("*[9] delete_pos [10] delete_value *\n"); printf("*[11] sort [12] reverse *\n"); printf("*[13] clear [14] merge *\n"); printf("*[0] quit_system *\n"); printf("*******************************************\n"); printf("請選擇:>>"); scanf("%d", &select); if (select == 0) break; switch (select) { case 1: printf("請輸入要插入的數據(-1結束):>"); while (scanf("%d", &item), item != -1) {//先輸入item的值,只要item不等于-1就接著循環 push_back(&list, item); } break; case 2: printf("請輸入要插入的數據(-1結束):>"); while (scanf("%d", &item), item != -1) { push_front(&list, item); } break; case 3: show_list(&list); break; case 4: pop_back(&list); break; case 5: pop_front(&list); break; case 6: printf("請輸入要插入的數據:>"); scanf("%d", &item); printf("請輸入要插入的位置:>"); scanf("%d", &pos); insert_pos(&list, pos, item); break; case 7: printf("請輸入要查找的數據:>"); scanf("%d", &item); pos = find(&list, item); if (pos == -1) printf("查找的數據元素不在順序表中!\n"); else printf("查找的數據元素在順序表中的下標位置為%d\n", pos); break; case 8: printf("順序表的長度為%d\n", length(&list)); break; case 9: printf("請輸入要刪除數據在順序表中的下標位置:>"); scanf("%d", &pos); delete_pos(&list, pos); break; case 10: printf("請輸入要刪除數據的值:>"); scanf("%d", &item); delete_val(&list, item); break; case 11: sort(&list); break; case 12: reverse(&list); break; case 13: clear(&list); break; case 14: Seqlist mylist, yourlist; ElemType item1, item2; InitSeqlist(&mylist); InitSeqlist(&yourlist); printf("請輸入順序表1中的元素值(-1結束):>"); while (scanf("%d", &item1), item1 != -1) { push_back(&mylist, item1); } printf("請輸入順序表2中的元素值(-1結束):>"); while (scanf("%d", &item2), item2 != -1) { push_back(&yourlist, item2); } merge(&list, &mylist, &yourlist); destroy(&mylist); destroy(&yourlist); break; default: printf("輸入的選擇錯誤!請重新輸入!\n"); break; } } destroy(&list); }
以上就是本文的全部內容,希望對大家的學習有所幫助,也希望大家多多支持億速云。
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