c - C - 在数组中搜索彼此接近的相同值？

Question

我有一个包含 x 元素的数组。我想搜索数组中的每个元素，看看它是否与我的输入值匹配。但是，有一条规则：要搜索的整数必须在数组的至少两个元素中，并且这些元素必须彼此相邻，或者彼此之间最多有一个元素。所以这就是我想出的：

#include <stdio.h>

int main(void)
{

    int elements;
    int input;
    int i;

    printf("How many elements in the array? ");
    scanf("%d", &elements);

    int array[elements];

    printf("Ok, please input %d integer values: ", elements);

    for(i=0; i < elements; i++)
    {
            scanf("%d", &array[i]);
    }

    printf("Which integer should I search for? ");
    scanf("%d", &input);

    for(i=0; i < elements; i++)
    {
            if((array[i] == input && array[i+1] == input) || (array[i] == input && array[i+2] == input))
            {
                    printf("Match!\n");
                    break;
            }

            else
            {
                    printf("Match not found!\n");
                    break;
            }
    }

    getchar();
    getchar();
    getchar();

    return 0;
}

它不像预期的那样工作，因为如果我搜索的整数之间有两个元素，它仍然会找到匹配项。

程序外观示例：

Array: 1, 2, 3, 4, 5, 5
Integer to search for: 5
Match found! // 5 and 5 are next to each other

Array: 1, 2, 3, 2, 4, 5
Integer to search for: 2
Match found! // 2 and 2 has only one element (3) between each other

Array: 1, 2, 1, 1, 2, 5
Integer to search for: 2
Match not found! // 2 and 2 has more than one element between each other

Answer 1

够奇怪的。在我的gcc 4.6.3

表明

How many elements in the array? 6
Ok, please input 6 integer values: 1
2
1
1
2
5
Which integer should I search for? 2
Match not found!

Answer 2

You might want to improve your loop

            for (i = 0; i < elements - 2; i++)
            {
                if ((array[i] == input && array[i + 1] == input) || (array[i] == input && array[i + 2] == input))
                {
                    printf("Match!\n");
                    break;
                }
                else if (i + 1 == elements - 2)
                {
                    if (array[i + 1] == input && array[i + 2] == input)
                    {
                        printf("Match!\n");
                    }

                    else
                    {
                        printf("Match not found!\n");
                    }
                }

            }