题解 | 倒置字符串

#include <stdio.h>
#include <string.h>

void sort(char* star, char* end) {
    while (star < end) {
        char p = *star;
        *star = *end;
        *end = p;
        star++;
        end--;
    }
}

int main() {
    char a[100];
    char b[100];
    int i;
    gets(a);
    int len = strlen(a);
    char* star = a;
    sort(a, a + len - 1);
    for (i = 0; i <= len; i++) {
        if (*(a + i) == ' ' || *(a + i) == '\0') {
            sort(star, a + i - 1);
            star = (a + i + 1);
        }
    }
    printf("%s", a);
    return 0;
}