字符串逆置

//translate "I am a student" to "tneduts a ma I"

void reverse(char *a, char *b){int i,j;i = 0;while (a[i] != '\0'){++i;}b[i] = '\0';--i;for (j = 0; j <= i; ++j){b[j] = a[i-j];}}//translate "I am a student" to "student am I"void reverse(char *a, char *b){int i,j,p;i = 0;j = 0;while (a[i] != '\0'){++i;}for (--i; i >= 0; --i){if (a[i] == 32){p = i+1;while (a[p] != 32 && a[p] != '\0'){b[j++] = a[p++];}b[j++] = (i == 0 ? '\0' : 32);}if ( 0 == i) //cope with the final word{p = i;while (a[p] != '\0' && a[p] != 32){b[j++] = a[p++];}b[j++] = (i == 0 ? '\0' : 32);}}}