#include<stdio.h> #include<string.h> #define N 1000 int main() { int i,s,t,j,k; char arr1[N],arr2[N]; while(gets(arr1))//scanf("%s",&arr1) != EOF { s = strlen(arr1); j=1; k=0; for(i = s-1; i >= 0; i --) { if(arr1[i] != ',') { arr2[k++] = arr1[i]; if(j%3==0 && i!=0) arr2[k++] = ','; j++; } } //printf("%d\n",j); //t = strlen(arr2); //printf("%d\n",t); for(i = k-1; i >= 0; i--) printf("%c",arr2[i]); printf("\n"); } return 0; } |
Double click to view unformatted code.