abcd1234 -> 右移2位 -> 34abcd12
解法:
abcd1234 -> abcd12 | 34 -> 21dcba | 43 ->34abcd12
程序如下:
#include <stdio.h>
template<typename T>
void ArrayReverse(T array[], int start, int end) {
T tmp;
while (start < end) {
tmp = array[start];
array[start] = array[end];
array[end] = tmp;
start++;
end--;
}
}
template<typename T>
void ArrayShift_1(T array, int length, int k) {
ArrayReverse(array, length - k, length -1);
ArrayReverse(array, 0, length - k - 1);
ArrayReverse(array, 0, length - 1);
}
int main(int argc, char** argv) {
char array[] = {'a', 'b', 'c', 'd', '1', '2', '3', '4'};
int array_size = sizeof(array) / sizeof(char);
ArrayShift_1(array, array_size, 2);
for (int i = 0; i < array_size; ++i) {
printf("%c ", array[i]);
}
printf("\n");
}
編程之美 2.17