39 lines
757 B
C
39 lines
757 B
C
#include <stdio.h>
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#pragma GCC optimize("Ofast,inline")
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//将字符串str中的内容反向打印的函数
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void reversePrint(char str[]);
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int main() {
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char s[100];
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scanf("%s", s);
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reversePrint(s);
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printf("\n");
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return 0;
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}
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/* 请在这里填写答案 */
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#include <stdlib.h>
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#include <string.h>
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void reversePrint(char str[]) {
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if (str == NULL) {
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return;
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}
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if (strlen(str) == 1) {
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printf("%c", str[0]);
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} else {
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char *tmp = malloc(sizeof(char) * strlen(str));
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/* Why this:
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* char *tmp = malloc(sizeof(char) * (strlen(str) - 1));
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* doesn't work? */
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for (int i = 1, n = strlen(str), j = 0; i < n; i++, j++) {
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tmp[j] = str[i];
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}
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reversePrint(tmp);
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free(tmp);
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printf("%c", str[0]);
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}
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}
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