【十二题解】 | #单词倒排#

#include<stdio.h>

int is_right(char*a, int loc){

if((a[loc]>='a' && a[loc]<='z')|| (a[loc]>='A' && a[loc]<='Z')){
    return 1;
}
else{
    return -1;
}

}

int main(){

int sign = 1;
char charecter[10000]={0};
char*loc = charecter;
while(~scanf("%c", loc))loc++;
int lenth = (loc-charecter)/sizeof(char);
int i, j;
for(i=lenth-2; i>=0 ; i=j){
    for(j=i; is_right(charecter, j)==sign; j--);
        for(int x=j+1; x<=i; x++){
            if(sign==1){
                 printf("%c", charecter[x]);
            }
           else{
               printf(" ");
           }
        }
    sign*=-1;
}

}