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Re:求助,老是Wrong AnswerIn Reply To:求助,老是Wrong Answer Posted by:pkuusb at 2007-11-22 12:46:34 > 以下是小弟1007的代码,其中用到了STL qsort排序函数,其本思想是通过该函数实现字符串按inversion值从小到大排序,可怎么老出是Wrong Answer呢? > > #include<iostream> > #include<algorithm> > using namespace std; > int inversion(const char* s) > { > int n=strlen(s); > int result=0; > for(int i=0;i<n;i++) > for(int j=i+1;j<n;j++) > if(s[i]>s[j]) result++; > return result; > } > int compare(const void* s1,const void* s2) > { > if(inversion((char*)s1)>=inversion((char*)s2)) return true; > else return false; > } > > int main() > { > char input[100][50]; > int n,m,i; > scanf("%d%d",&n,&m); > for(i=0;i<m;i++){ > scanf("%s",input[i]); > } > qsort((void*)input,m,sizeof(input[0]),compare); > for(i=0;i<m;i++) > printf("%s\n",input[i]); > return 0; > } // 排序用stable_sort吧 Followed by: Post your reply here: |
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