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TLE阿,问问各位怎么改进阿,GCC#include <stdio.h> #include <string.h> char s[15]; int l; char str[52]={'A','a','B','b','C','c','D','d','E','e','F','f','G','g','H','h','I','i', 'J','j','K','k','L','l','M','m','N','n','O','o','P','p','Q','q','R','r','S','s','T','t', 'U','u','V','v','W','w','X','x','Y','y','Z','z'}; void sort(){ int a[15],len,i,j; char temp; for(i=0;i<15;i++) a[i]=-1; len=l; for(i=0;i<len;i++){ for(j=0;j<52;j++){ if(s[i]==str[j]){ a[i]=j; break; } } } for(i=0;i<len;i++) for(j=i;j<len;j++){ if(a[i]>a[j]) { temp=s[i]; s[i]=s[j]; s[j]=temp; temp=a[i]; a[i]=a[j]; a[j]=temp; } } } void swap(char *a,char *b){ char temp; temp=*a; *a=*b; *b=temp; } void pailie(int key,int len){ int i; if(key==l-1) printf("%s\n",s); else{ for(i=key;i<l;i++){ if(s[i]==s[i+1]) { continue; } swap(&s[key],&s[i]); pailie(key+1,len-1); swap(&s[key],&s[i]); } } } int main(){ int k,n; scanf("%d",&n); for(k=0;k<n;k++){ memset(s,'\0',15); scanf("%s",s); l=strlen(s); if(l==1) printf("%s\n",s); else{ sort(); //printf("\n%s\n",s); pailie(0,l-1); } } return 0; } Followed by:
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