#define numberofButtons 3
 
    #include <stdio.h>
    #include<time.h>
 
    void wait(double x)
    {
        clock_t begin, end;
        double time_spent, limit=1000*60*x;
        while(time_spent<= limit)
        {
            time_spent = (double)(end - begin) / CLOCKS_PER_SEC;
        }
    }
 
 
    int main(void)
    {
        char c;
        {
            if (c == 'a')
            {
                printf("I am in a! Come after 15 min!\n");                 wait(15);
                printf("WOW! How could you pass 15 min!!\n");             }
            if (c == 'b')
            {
                printf("I am in b! Come after 15 min!\n");                 wait(15);
                printf("WOW! How could you pass 15 min!!\n");             }
            if (c == 'c')
            {
                printf("I am in c! Come after 15 min!\n");                 wait(15);
                printf("WOW! How could you pass 15 min!!\n");             }
        }
    }
 
				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