Thread: Help with C programming problems

here i think everyone who finds difficulties should post any C programing problem that we would try to discuss and solve. This would make it easy for users to post their request in one threat instead of hundreds of them.

i begin with my problem in fact here's what the exercice says:"Write a program that reads an array of strings, sorts the array using the insertion sort, and displays the sorted array. The array can be declared as follows:char str[SIZE][N]; where N is defined as a preprocessing directive
make sure you use appropriate string functions such as gets to read a string, and strcpy to perform an assignment.
It may sound easy but i hope i will get a response

it's not a homework its just an exercice i found and i wanted to train with it as i only discover strings in the course! thanks

Code:

 /* 
#include<stdio.h>
#define SIZE 5
#include <stdio.h>

void print_array(int *);
void read_array(int []);
void sort_array(int *);
int search(int, int[]);
void choice_operation(int []);

	int main(){
           int ar[SIZE];			//array declaration (SIZE is constant)
           
		   read_array(ar);		//read array elements
           sort_array(ar);		//sort the array
           choice_operation(ar);	//display a list of operations
           system("PAUSE");
           return 0;
}
void read_array(int x[]){
       int i;
     printf(" Enter the array: ");
	 for (i = 0 ; i < SIZE ; i++)
        scanf("&#37;d",&x[i]);                         
}

void sort_array(int ar[])
{

	int i, j;
	
	int tmp;
	
	for (j=1; j < SIZE; j++)
    {
       tmp = ar[j];
       
       for (i = j; (i > 0) && (ar[i-1] > tmp); i--)
       
             ar[i] = ar[i-1];
             
       ar[i] = tmp;
    }
	 
printf("                Array sorted succesfully.\n");

printf("\n");


}


int search (int v,int x[]){
         int i;         for (i = 0 ; i < SIZE ; i++){
                            if (x[i] == v)   
                               return(i); 
                   }
                   return(-1);
}
void choice_operation(int x[]){
	
                               int i,y=0,sum = 0,a = 0,v;
                               do{
                               printf("To display the max and the min of the array, enter 1\n");
                               printf("To know a position of a value, Enter 2\n");
                               printf("To find the average, Enter 3\n");
                               printf("To list the elements of the array, Enter 4\n");
                               printf("To exit, Enter any other character.\n");
                               scanf("%d",&y);
                               
							   	switch(y){
                               case 1:
                                    printf("the max is %d, and the min is %d\n",x[0],x[SIZE-1]);
                                    break;
                               case 2:
                                     printf("Enter a value to know its position within the array:\n");
                                     scanf("%d",&v);
                                     a = search(v,x);
                                     if(a != -1)
                                          printf("the positions of %d is %d\n",v,a);
                                     else
                                          printf("this element does not belong to the array\n");
                                     break;
                               case 3:
                                    for (i = 0 ; i < SIZE ; i++)
                                             sum += x[i];
                                    printf("The average is %d\n",(sum / SIZE));
                                    break;
                               case 4:
                                    print_array(x);
                                         break;
                               default:
                                       printf("The program ends.\n");
                                       return 0;
							   	}
                                    
         }
                               while(y=1);
 }
  
   
   
      


void print_array(int A[])
{
	int i;
	printf("\n");
	printf("     The sorted array is the following \n");
	printf("\n");
	for(i = 0; i < SIZE ;i++)
		printf("     %d\n", A[i]);
	
}
*/

the algorithm above in a program that reads, sort by insertion sort, give the position of a chosen number in the array.... in order to let the user do as much operations as he wants i made a"do while" loop still it works but i don't understand why i had to make while(y=1) to make the menu reapear any suggestings?

Originally Posted by overlord21

here i think everyone who finds difficulties should post any C programing problem that we would try to discuss and solve. This would make it easy for users to post their request in one threat instead of hundreds of them.

Also, instead of having libraries and books, we should write down all of human knowledge on a single huge piece of paper, that will obviously make everything easier.

i don't know if its sarcastic, but you surely know that we are only talking about C programming(one topic). So this board won't be overcrowd....

humans are such criticizing beings

tHAT IS HOW WE IMPROVE!! by criticizing!

HELP PLEASE

I have a project to do where the teacher gives us a .dat file and we have to put it into an array. this .dat file will be added to the directory the run with the program as a.out < scores.dat.


Please tell me how to do this.

Assignment:
You job is to write a program that will read in the golf scores of several players in a golf game. You will then display some statistics about the scores. You will generate an average score and list those players who scored below the average (a good thing!) You will also provide the functionality to show the winning score. The player with the lowest score is the winner.

Below is the main() function you must use in your program:
int main()
{
int scoreList [MAX_PLAYERS]; /* Array to store golf scores */
int numberOfPlayers = 0; /* Total number of scores entered */
float averageScore = 0.0; /* Average golf score */
int winningScore = 0; /* The lowest score */

printf("\nWelcome to CMSC104's Golf Statistics Program!\n\n");

/* Fill array with golf scores */
numberOfPlayers = FillGolfScoreList (scoreList);

Thankyou