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Re:为什么错了……求教

Posted by 1200012830 at 2013-05-22 20:01:51 on Problem 2334
In Reply To:为什么错了……求教 Posted by:1200017623 at 2013-05-15 11:05:30
> /*
> 我的想法是:先给字符串排序,这样保证有共同前缀的字符串都在一起
> 之后依次判断0,1  1,2  ...  n-2,n-1的缀长度并直接统计
> 字符串相同和有空格的情况我都考虑了……还是WA
> */
> 
> 
> #include<cstdio>
> #include<cstring>
> #include<algorithm>
> using namespace std;
> 
> static char *str[10002];
> 
> bool cmp(char* str1,char* str2){
> 	return strcmp(str1,str2) < 0;
> }
> 
> int PerfixLen(const char* str1,const char* str2){
> 	int len = 0;
> 	for(;*str1 && *str1 == *str2;++str1,++str2)++len;
> 	return len;
> }
> 
> int main(){
> 	int N,TotalLen = 0;
> 	char tmpstr[256] = {0};
> 	scanf("%d",&N);
> 	getchar();
> 	for(int i = 0;i < N;++i){
> 		gets(tmpstr);
> 		str[i] = new char[strlen(tmpstr) + 1];
> 		strcpy(str[i],tmpstr);
> 		TotalLen += strlen(str[i]);
> 	}
> 
> 	sort(str,str+N,cmp);
> 
> 	for(int i = 0;i < N - 1;++i){
> 		TotalLen -= (PerfixLen(str[i],str[i+1]) - 1);
> 	}
> 	printf("%d\n",TotalLen);
> 
> 	for(int i = 0;i < N;++i)delete str[i];
> 	return 0;
> }

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