i<j<k, a[i]<a[j]<a[k]

// http://www.careercup.com/question?id=14960662
#include <stdio.h>

int main()
{
    int a[] = {1, 2, -1, 0, 7, 6, 5};

    const int N = sizeof(a)/sizeof(a[0]);

    int i = 0;
    for(int s = 1; s < N-2; ++s)
    {
        if(a[s] < a[i]) { i = s;}
        else if(a[s] > a[i]) { break;}
    }

    int k = N - 1;
    for(int s = N - 2; s > i; --s)
    {
        if(a[s] > a[k]) { k = s; }
        else if(a[s] < a[k]) { break; }
    }

    for(int j = i+1; j < k; ++j)
    {
        if(a[i] < a[j] && a[j] < a[k])
        {
            printf("%d, %d, %d\n", a[i], a[j], a[k]);
            return 0;
        }
    }
    return -1;
}