To leave the loop press ‘^’ and ‘z’ key while holding down the control key:

‘control’ + ‘^’ then ‘control’ + ‘z’

Iterative Version:

#include <stdio.h>
#include <string.h>

#define max_length 50

void two_ele_subs(char * str){

 int n = strlen(str);
 int i = 0;
 int j = 1;

     while(i < n){
         while(j < n){
            printf("[%c,%c]\n", str[i], str[j]);
              ++j;
         }
      ++i;
      j = i + 1;
    }
 printf("\n\nEnter your string: ");
}

int main(void){

    char str[max_length];

      printf("Enter your string: ");
    while(scanf("%s", &str) != EOF){
      two_ele_subs(str);
    }

system("pause");
return 0;
}

Recursive Version:

 #include <stdio.h>
 #include <string.h>

 #define max_length 50

 void two_ele_subs(char * str){

 int n = strlen(str);
 int i = 0;
 int j = 1;
     if(n > 1){
         while(j < n){
             printf("[%c,%c]\n", str[i], str[j]);
             ++j;
         }if(i < n){
            ++i;
         }
      two_ele_subs(str+1);
     }
}

int main(void){

char str[max_length];

    printf("Enter your string: ");
  while(scanf("%s", &str) != EOF){
     two_ele_subs(str);
     printf("\n\nEnter your string: ");
 }

system("pause");
return 0;
}

Each year the Department of Traffic Accidents receives accident count reports from a number of cities and towns across the country. To summarize these reports, the department provides a frequency distribution printout that gives the number of cities reporting accident counts in the following ranges:

0 – 99
100 – 199
200 – 299
300 – 399
400 – 499
500 or above

The department needs a computer program to take the number of accidents for each reporting city or town and add one to the count for the appropriate accident range. After all the data have been processed, the resulting frequency counts are to be displayed.

Traffic Accident Addition (.exe)

#include <stdio.h>

#define size 6

void updateRange (int *i, int *a_range){
     *i = 0;
   while(*i >= 0){
        printf("Enter an accident count (negative to end): ");
        scanf("%d", &*i);
                if (*i <= 0){
                }else if (*i <= 99){
                   a_range[0]++;
                }else if (*i <= 199){
                   a_range[1]++;
                }else if (*i <= 299){
                   a_range[2]++;
                }else if (*i <= 399){
                   a_range[3]++;
                }else if (*i <= 499){
                   a_range[4]++;
                }else if (*i >= 500){
                   a_range[5]++;
                }
         }
}

void displayRange (int *a_range){
  int y = 0;
  int numRange1 = 0;
  int numRange2 = 99;
    printf("\n   Range  Frequency\n\n" );
    printf("%4d-%3d%10d\n ",numRange1, numRange2, a_range[y]);
    ++y;
        while(y < 5){
          numRange1 += 100;
          numRange2 += 100;
            printf("%d-%d%10d\n ", numRange1, numRange2, a_range[y]);
            ++y;
        }
    numRange1 += 100;
    printf("%d or above%5d\n\n",numRange1, a_range[y]);
}

int main(void){
  int i = 0;
  int a_range[size];
      while (i < size){
          a_range[i] = 0;
        ++i;
      }
  updateRange(&i, &*a_range);
  displayRange(&*a_range);
system("pause");
return 0;
}

03/19/2012

03/19/2012

07/06/2011

06/27/2011

It’s the life we live,
the life we lead,
it takes us away,
until we scream.

It’s the life of a comedy,
dancing in the streets,
the mockery of a win,
only to be crushed by the “sin.”

Ha, it’s only what you bleed.

To the world unknowing,
to the world I repent.
It is to those unyielding,
to those who have dreamt.

Forever we stare,
at the hunks of flesh.
Forever we live,
in the slobbering mess.

It is for the men,
the man in all,
the givers, the takers;
the human is all.

Greed, HA!
Greed is a sin.
At least,
to the beasts that slobber.

For it is man that is greedy,
and it is man who builds.
It’s man who yearns,
it is man who has will.

To those who can stand,
to those who can think,
to those with a heart,
to those who aren’t weak.

To the world I state,
I am greedy.

I love my life,
my blood,
my mornings,
my evening.

I am god,
and believer,
I am the selfish,
the creator, the greedy,
‘nd the savior.

I am the heir to humanity,
the owner who says mine.
Fighting those who beg,
fighting those who only try.

I am an end,
to my end,
not the drooling beast in the room.

the beggars, the sinners,
the meek and the weak;
all swine, taken from womb.

I am god,
the greedy,
the dreamer,
the builder.

I am man.

The electric company charges according to the following rate schedule:

9 cents per kilowatt-hour (kwh) for the first 300 kwh

8 cents per kwh for the next 300 kwh (up to 600 kwh)

6 cents per kwh for the next 400 kwh (up to 1,000 kwh)

5 cents per kwh for all electricity used over 1,000 kwh.

Write a function to compute and return the total charge for each customer. Write a main function to call the charge calculation function using the following data:

Customer Number             Kilowatt-hours used

123                                         725

205                                         115

464                                         600

596                                         327

601                                         915

613                                       1,011

722                                          47

The program should print a three-column chart listing the customer number, the kilowatt-hours used, and the charge for each customer. The program should also compute and print the number of customers, the total kilowatt-hours used, and the total charges.

My Solution:/* Problem Description:

/* Problem Description:
* The electric company charges according to the following rate schedule:
* 9 cents per kilowatt-hour (kwh) for the first 300 kwh
* 8 cents per kwh for the next 300 kwh (up to 600 kwh)
* 6 cents per kwh for the next 400 kwh (up to 1,000 kwh)
* 5 cents per kwh for all electricity used over 1,000 kwh.
* Write a function to compute and return the total charge for each customer.
*/
#include <stdio.h>
#include <math.h>

#define first .09 /* 9 cents per kwh for first 300 kwh */
#define second .08 /* 8 cents per kwh for next 300 kwh */
#define third .06 /* 6 cents per kwh for next 400 kwh */
#define fourth .05 /* 5 cents per kwh for remaining kwh’s */

/* Ouput Variables */

double cost;
double total_cost = 0;
int total_customers = 0;
int total_kwh = 0;

/* Cost Calculating (for kwh) */
double charge_calc_kwh (int *kwhp, int *cust){

if(*kwhp < 300){
cost = ((*kwhp) * (first));
}else if(*kwhp < 600){
cost = (300 * first) + ((*kwhp – 300) * (second));
}else if(*kwhp < 1000){
cost = (300 * first) + ((300) * (second))
+ ((*kwhp – 600) * (third));
}else if(*kwhp > 1000){
cost = ((300) * (first)) + ((300) * (second))
+ ((400) * (third)) +
((*kwhp – 1000) * (fourth));
}
if(*cust && *kwhp != -1){
printf(“\nCustomer Num: %d”, *cust);
printf(” KWH used: %d”, *kwhp);
printf(” Charge: %.2f\n”, cost);
}
return(cost);
}

/* Totaling Values for Final Print */
int totaling(int *kwhp, double *cost){

if(*kwhp != -1){
total_cost += *cost;
total_kwh += *kwhp;
total_customers = ++total_customers;
}else{
printf(“\nTotal Customers: %d”, total_customers);
printf(” Total KWH used %d”, total_kwh);
printf(” Total Charges %.2f\n”, total_cost);
}
return(total_cost, total_kwh, total_customers);
}

int
main(void){
/* Input Values */
int kwh; /* kilowatt-hours per customer */
int cust; /* customer number */

while(kwh != -1 && cust != -1){
printf(“Enter customer number and KWH (-1 to quit): “);
scanf(“%d %d”, &cust, &kwh);
charge_calc_kwh(&kwh, &cust);
totaling(&kwh, &cost);
}

system(“pause”); /* MMMmm windows */
return (0);
}