關(guān)于數(shù)據(jù)結(jié)構(gòu)單向鏈表的各種操作
關(guān)于節(jié)點數(shù)據(jù)添加:
尾添加
最核心的是定義一個頭指針和一個尾指針(尾指針可以不定義但是會增加代碼的重復(fù)性,增加程序運行時間);
關(guān)于尾添加:(注意區(qū)分有節(jié)點和無節(jié)點的情況)
#include<stdio.h> #include<stdlib.h> #include<malloc.h> struct Mystruct { int data; struct Mystruct *pnext; }; void endadd(struct Mystruct **phead,struct Mystruct **pend, int adddata); int main(void) { struct Mystruct *phead = NULL; struct Mystruct *pend= NULL; endadd(&phead,&pend,4); ...... return 0; } void endadd(struct Mystruct **phead,struct Mystruct **pend, int adddata) { struct Mystruct *pt = (struct Mystruct *)malloc(sizeof(struct Mystruct)); if(NULL == pt) return; pt->data = adddata; pt->pnext = NULL; if(NULL == *phead) { *phead = pt; } else { (*pend)->pnext = pt; } *pend= pt; }
頭添加
關(guān)于代碼思路與尾添加基本一致,注意區(qū)分節(jié)點的鏈接:
#include<stdio.h> #include<stdlib.h> #include<malloc.h> struct Mystruct { int data; struct Mystruct *pnext; }; void head_add(struct Mystruct **phead,struct Mystruct **pend, int adddata); int main(void) { struct Mystruct *phead = NULL; struct Mystruct *pend= NULL; head_add(&phead,&pend,4); ...... return 0; } void head_add(struct Mystruct **phead,struct Mystruct **pend, int adddata) { struct Mystruct *pt = (struct Mystruct *)malloc(sizeof(struct Mystruct)); if(NULL == pt) return; pt->data = adddata; pt->pnext = NULL; if(NULL == *phead) { *pend = pt; } else { pt->pnext = (*phead); } *phead= pt; }
一次性添加n個x數(shù)據(jù)節(jié)點:
利用循壞,直接調(diào)用頭添加或者尾添加:
#include<stdio.h> #include<stdlib.h> #include<malloc.h> struct Mystruct { int data; struct Mystruct *pnext; }; void circulate_add(struct Mystruct **phead,struct Mystruct **pend, int adddata); int main(void) { struct Mystruct *phead = NULL; struct Mystruct *pend= NULL; circulate_add(&phead,&pend,4,5); ...... return 0; } void circulate_add(struct Mystruct **phead,struct Mystruct **pend, int count, int adddata); { for(int i = 0;i<count;i++) { endadd(phead, pend, adddata); } }
關(guān)于查找:
根據(jù)指定數(shù)據(jù):
核心就是通過頭指針一個一個往下走找到指定節(jié)點的數(shù)據(jù)與所找數(shù)據(jù)是否匹配,最重要的是要使用中間變量記錄頭指針,否則就無法找到頭指針了(因為是單項鏈表):
#include<stdio.h> #include<stdlib.h> #include<malloc.h> struct Mystruct { int data; struct Mystruct *pnext; }; void data_find(struct Mystruct *phead, int designated_data); int main(void) { struct Mystruct *phead = NULL; struct Mystruct *pend= NULL; middle_data_find(phead,4); ...... return 0; } void data_find(struct Mystruct* phead, int designated_data) { if (NULL == phead) return; struct Mystruct* ptemp = phead; while (ptemp != NULL) { if (ptemp->data == designated_data) { printf("找到了"); break; } ptemp = ptemp->pnext; } return; }
根據(jù)下標查找:
思路基本不變;區(qū)別傳入指定下標;內(nèi)部定義一個計數(shù)器,當下標和計數(shù)器數(shù)值相等;表示鏈表存在這個節(jié)點;可以選擇傳出或者提醒;大家思考一下,動手實踐一下。
#include<stdio.h> #include<stdlib.h> #include<malloc.h> struct Mystruct { int data; struct Mystruct *pnext; }; struct Mystruct *index_find(struct Mystruct *phead, int index); int main(void) { struct Mystruct *phead = NULL; struct Mystruct *pend= NULL; middle_data_find(phead,4); ...... return 0; } struct Mystruct* index_find(struct Mystruct* phead, int index) { if (NULL == phead||index<0) return NULL; struct Mystruct* ptemp = phead; int i = 0; for (i = 0; i < index; i++) { ptemp = ptemp->pnext; } return ptemp; }
刪除頭節(jié)點:
#include<stdio.h> #include<stdlib.h> #include<malloc.h> struct Mystruct { int data; struct Mystruct *pnext; }; void deleat_head(struct Mystruct **phead,struct Mystruct **pend); int main(void) { struct Mystruct *phead = NULL; struct Mystruct *pend= NULL; deleat_head(&phead) ...... return 0; } void deleat_head(struct Mystruct** phead, struct Mystruct** pend) { if (NULL == *phead) return; struct Mystruct* pt = *phead; if ((*phead)->pnext == NULL) { free(pt); *phead = NULL; *pend = NULL; } else { *phead = (*phead)->pnext; free(pt); } } void deleat_end(struct My
刪除尾節(jié)點:
#include<stdio.h> #include<stdlib.h> #include<malloc.h> struct Mystruct { int data; struct Mystruct *pnext; }; void deleat_end(struct Mystruct**phead,struct Mystruct**pend); int main(void) { struct Mystruct *phead = NULL; struct Mystruct *pend= NULL; deleat_head(&phead) ...... return 0; } void deleat_end(struct Mystruct** phead, struct Mystruct** pend) { if (NULL == *phead) return; struct Mystruct* pt = *phead; if (pt->pnext == NULL) { free(pt); *phead = NULL; *pend = NULL; } else { while (pt->pnext != (*pend)) { if (pt->pnext == (*pend)) { free(*pend); *pend = pt; pt->pnext = NULL; pt = pt->pnext; } } } }
刪除中間節(jié)點:
這里思路改變一下:根據(jù)數(shù)據(jù)或者下標找到前一個節(jié)點,改變前一個節(jié)點的pnext指針的指向,直接指向下一個節(jié)點,也就是這個節(jié)點的pnext;簡單示范一下刪除中間指定數(shù)據(jù):
#include<stdio.h> #include<stdlib.h> #include<malloc.h> struct Mystruct { int data; struct Mystruct *pnext; }; void deleat_middlledata(struct Mystruct**phead,struct Mystruct**pend,int deleatdata); int main(void) { struct Mystruct *phead = NULL; struct Mystruct *pend= NULL; deleat_head(&phead) ...... return 0; } void deleat_middlledata(struct Mystruct**phead,struct Mystruct**pend,int deleatdata) { if (NULL == *phead) return; struct Mystruct* pt = *phead; if (pt->pnext == NULL) { free(pt); *phead = NULL; *pend = NULL; } }
刪除全部節(jié)點:
#include<stdio.h> #include<stdlib.h> #include<malloc.h> struct Mystruct { int data; struct Mystruct *pnext; }; void deleat_all(struct Mystruct** phead, struct Mystruct** pend) int main(void) { struct Mystruct *phead = NULL; struct Mystruct *pend= NULL; deleat_all(&phead,&pend) ...... return 0; } void deleat_all(struct Mystruct** phead, struct Mystruct** pend) { while (*phead!= NULL) { struct Mystruct* pt = *phead; *phead = (*phead)->pnext; free(pt); } *phead = NULL; *pend = NULL; }
到此這篇關(guān)于關(guān)于數(shù)據(jù)結(jié)構(gòu)單向鏈表的各種操作的文章就介紹到這了,更多相關(guān)數(shù)據(jù)結(jié)構(gòu)單向鏈表操作內(nèi)容請搜索腳本之家以前的文章或繼續(xù)瀏覽下面的相關(guān)文章希望大家以后多多支持腳本之家!
- C語言數(shù)據(jù)結(jié)構(gòu)之單向鏈表詳解
- C語言實例真題講解數(shù)據(jù)結(jié)構(gòu)中單向環(huán)形鏈表
- C語言數(shù)據(jù)結(jié)構(gòu)超詳細講解單向鏈表
- Java?數(shù)據(jù)結(jié)構(gòu)與算法系列精講之單向鏈表
- C語言數(shù)據(jù)結(jié)構(gòu)之單向鏈表詳解分析
- Java數(shù)據(jù)結(jié)構(gòu)之鏈表實現(xiàn)(單向、雙向鏈表及鏈表反轉(zhuǎn))
- 數(shù)據(jù)結(jié)構(gòu)與算法:單向鏈表實現(xiàn)與封裝
- python數(shù)據(jù)結(jié)構(gòu)鏈表之單向鏈表(實例講解)
相關(guān)文章
C語言深入探究自定義類型之結(jié)構(gòu)體與枚舉及聯(lián)合
今天我們來學(xué)習(xí)一下自定義類型,自定義類型包括結(jié)構(gòu)體、枚舉、聯(lián)合體,小編覺得挺不錯的,現(xiàn)在就分享給大家,也給大家做個參考2022-05-05c語言基于stdarg.h的可變參數(shù)函數(shù)的用法
本篇文章主要介紹了c語言基于stdarg.h的可變參數(shù)函數(shù)的用法,詳細的介紹了可變參數(shù)函數(shù)的詳細用法和源碼實例,有興趣的可以了解一下2017-07-07C++ vector在多線程操作中出現(xiàn)內(nèi)存錯誤問題及解決
這篇文章主要介紹了C++ vector在多線程操作中出現(xiàn)內(nèi)存錯誤問題及解決方案,具有很好的參考價值,希望對大家有所幫助,如有錯誤或未考慮完全的地方,望不吝賜教2023-08-08