题解 | #句子逆序#

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

int main() {
    int len;
    char *str = NULL;
    size_t is = 0;
    len = getline(&str, &is, stdin);
    char* p = str + len - 1;
    char* pEnd = p;
    char tmp[1000];
    while (p != str) {
        if (*p == ' ') {
            memset(tmp, 0x00, 1000);
            strncpy(tmp, p + 1, pEnd - p - 1);
            printf("%s ", tmp);
            pEnd = p;
        }
        --p;
    }
    memset(tmp, 0x00, 1000);
    strncpy(tmp, p, pEnd - p);
    printf("%s", tmp);
    return 0;
}