poj 1002

 //poj 1002

//沒有AC Time Limit Exceeded ，我用了鏈表，該用堆或二叉樹的，有時間的時候在改下吧。先把我寫的代碼記在這裏

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <ctype.h>

#define MAX_CHAR 50
#define STD_CHAR_COUNT 10
typedef struct node
{
    char *data;
    int count;
    struct node * next;
}Node,List;

List * creatList()
{
    Node *head = (Node *)malloc(sizeof(Node));
    head->next=NULL;
    return head;
}

void insertList(List *list,char * data)
{
    Node *p = list->next;
    Node *preNode = list;
    Node *newNode;
    int rs;
    while(p)
    {
        rs = strcmp(data,p->data);
        if (rs==0)
        {
            p->count++;
            return ;
        }
        else if (rs>0)
        {
            preNode = p;
            p=p->next;
        }
        else
        {
            break;
        }
    }
    newNode = (Node *)malloc(sizeof(Node));
    newNode->data = (char *)malloc(STD_CHAR_COUNT*sizeof(char));
    memset(newNode->data,0,STD_CHAR_COUNT*sizeof(char));
    memcpy(newNode->data,data,strlen(data));
    newNode->count = 1;
    preNode->next = newNode;
    newNode->next = p;
}
void printList(List *list)
{
    int count1 =0;
    List *p = list->next;
    while(p)
    {
        if (p->count>1)
        {
            printf("%s %d\n",p->data,p->count);
            count1++;
        }
        p=p->next;
    }
    if (count1==0)
    {
        printf("No duplicates.");
    }
}
void distoryList(List *list)
{
    Node *p,*q;
    p = list->next;
    while(p)
    {
        q = p->next;
        free(p->data);
        free(p);
        p=q;
    }
    free(list);
}
int main(void)
{
    int numCount;
    List *list;
    char nowStr[MAX_CHAR];
    char nowStdNum[STD_CHAR_COUNT];

    int i,j;
    int charCount;
    int stdCharCount;
    scanf("%d",&numCount);
    list = creatList();
    for (i=0;i<numCount;i++)
    {
        memset(nowStr,0,MAX_CHAR*sizeof(char));
        memset(nowStdNum,0,STD_CHAR_COUNT*sizeof(char));
        scanf("%s",nowStr);
        stdCharCount=0;
        charCount = strlen(nowStr);
        for (j=0;j<charCount;j++)
        {
            if (nowStr[j]=='-')
                continue;
            if (isupper(nowStr[j]))
            {
                switch (nowStr[j])
                {
                case 'A': case 'B': case 'C': nowStr[j] = '2'; break;
                case 'D': case 'E': case 'F': nowStr[j] = '3'; break;
                case 'G': case 'H': case 'I': nowStr[j] = '4'; break;
                case 'J': case 'K': case 'L': nowStr[j] = '5'; break;
                case 'M': case 'N': case 'O': nowStr[j] = '6'; break;
                case 'P': case 'R': case 'S': nowStr[j] = '7'; break;
                case 'T': case 'U': case 'V': nowStr[j] = '8'; break;
                case 'W': case 'X': case 'Y': nowStr[j] = '9'; break;
                }
            }
            nowStdNum[stdCharCount]=nowStr[j];
            stdCharCount++;
            if (stdCharCount==3)
            {
                nowStdNum[stdCharCount]='-';
                stdCharCount++;
            }
        }
        insertList(list,nowStdNum);
    }
    printList(list);
    distoryList(list);
    return 0;
}