输入一个有序数组和一个数字，在数组中查找两个数，使得它们的和正好是输入的那个数字

 1 #include<stdio.h>
 2 #include<stdlib.h>
 3 
 4 void findTwo(int *array, int len, int sum)
 5 {
 6     int beg = 0;
 7     int end = len-1;
 8     int curSum;
 9     while(beg < end)
10     {
11         curSum = array[beg] + array[end];
12         if(curSum == sum)
13         {
14             printf("%d + %d = %d\n",array[beg],array[end],sum);
15             beg++;
16             end--;
17         }
18         else if(curSum < sum)
19             beg++;
20         else
21             end--;
22     }
23 }
24 
25 int main()
26 {
27     int array[6] = {0,2,4,7,11,15};
28     findTwo(array,6,18);
29     system("pause");
30     return 0;
31 }