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#include <assert.h> | |
#include <string.h> | |
void reverse(char *str) { | |
size_t len = strlen(str); | |
size_t half = len >> 1; | |
for (int i = 0; i < half; i++) { | |
int ei = (len - 1) - i; | |
char begin = str[i]; | |
char end = str[ei]; | |
str[i] = end; | |
str[ei] = begin; | |
} | |
return; | |
} | |
int main(void) { | |
char str[] = "some"; | |
reverse(str); | |
assert(strcmp(str, "emos") == 0); | |
char str2[] = "some shit"; | |
reverse(str2); | |
assert(strcmp(str2, "tihs emos") == 0); | |
return 0; | |
} |
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