s_search.c

#include <stdio.h>
#include <stdlib.h>

int Data[20] = {1, 7, 9, 12, 15, 16, 20, 32, 35, 67, 78, 80, 83, 89, 90, 92, 97, 108, 120, 177};
int Counter = 1;

int Seq_Search(int Key)
{
    int i;

    for ( i = 0; i < 20; i++ )
    {
        printf("[%d]", Data[i]);
        if ( Key == Data[i] )
            return 1;
        Counter++;
    }
    return 0;
}

void main()
{
    int KeyValue;

    printf("Please enter your key value : ");
    scanf("%d", &KeyValue);

    if( Seq_Search(KeyValue))
        printf("\nSearch Time = %d\n", Counter);
    else
        printf("No Found!!\n");
}