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各位大神,能不能帮忙看看这代码那错了

Posted by 1604 at 2014-07-27 17:17:21 on Problem 1002
#include<stdio.h>
#include<string.h>
#include<stdlib.h>
struct node
{
	int name;int numb;
}pres[10001];
int cmp(const void *a,const void *b)
{
	return (*(struct node*)a).name-(*(struct node*)b).name;
}
int transform(char a)
{
	if(a=='A'||a=='B'||a=='C')
	{
		return 2;
	}
	if(a=='D'||a=='E'||a=='F')
	{
		return 3;
	}
	if(a=='G'||a=='H'||a=='I')
	{
		return 4;
	}
	if(a=='J'||a=='K'||a=='L')
	{
		return 5;
	}
	if(a=='M'||a=='N'||a=='O')
	{
		return 6;
	}
	if(a=='P'||a=='R'||a=='S')
	{
		return 7;
	}
	if(a=='T'||a=='U'||a=='V')
	{
		return 8;
	}
	if(a=='W'||a=='X'||a=='Y')
	{
		return 9;
	}
	if(a=='-'||a=='Q'||a=='Z')
	{
		return -1;
	}
	if(a>='0'&&a<='9')
	{
		int p=a-48;
		return p;
	}
}
int main()
{
	int n;scanf("%d",&n);
	for(int i=0;i<n;i++)
	{
		char a[300];
		scanf("%s",a);
		int ilen=strlen(a);
		for(int j=0;j<ilen;j++)
		{	
			int num=transform(a[j]);
			if(num!=-1)
			{
				pres[i].name=pres[i].name*10+num;
			}
		}
	}
	qsort(pres,n,sizeof(pres[0]),cmp);int flag=0;
	for(int i=0;i<n;i++)
	{
		if(pres[i].name==pres[i+1].name)
		{
			pres[i].name=-1;pres[i+1].numb=pres[i].numb+1;pres[i].numb=0;flag++;
		}
	}
	for(int i=0;i<n;i++)
	{
		if(pres[i].numb>0)
		{
			printf("%03d-%04d %d\n",pres[i].name/100,pres[i].name%100,pres[i].numb+1);
		}
	}
	if(flag==0)
	{
		printf("No duplicates. ");
	}
	return 0;
}


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