Thread: help with c

Code:

/* This program expects the name of an input file and an output
file to be given by the user.
      Name : Dang Vo
	  Date : 04/14/11
*/

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define NUM_LINE 21

typedef struct
{
	char states[50];
	char cities[50];
	int tempt;
} INFO;
void getData(INFO list[]);
void insertionSort(INFO list[], int last);
//int calcAver(INFO list[]);
void printData(INFO list[]);
int main (void)
{

// Local Declarations

//FILE *spData = fopen("in.txt", "r");
INFO list[NUM_LINE];
int last = 1;
INFO states[50];
INFO cities[50];
INFO tempt;

// Statements
getData(list);
insertionSort(list, last);
calcAver(list);
printData(list);
return 0;
}

/*========================== getData========================
Pre: FILE *spData
Post: FILE *spData
*/
// Local Declarations


void getData(INFO list[])
{
// Local declarations
FILE *spData;
char states[50];
char cities[50];
int tempt;

//open file
spData = fopen("in.txt", "r");

if (spData != NULL)
{
fgets(states, 50, spData);
fgets(cities, 50, spData);
scanf( "%d", &tempt );
printf("Sucessfully open in.txt\n");
fclose(spData);
}
else
{
	printf("Could not open in.txt\n");
}
return;
}

/*==============================insertionSort ================================
Pre: unsorted info
Post: sorted info
*/
void insertionSort(INFO list[], int last)
{
// Local Declarations
   bool located;
   INFO temp;
   INFO *pCurrent;
   INFO *pWalker;
   INFO *pLast;

// Statements
   for (pCurrent = list + 1, pLast = list + last;
	   pCurrent <= pLast;
	   pCurrent++)
   {
    located = false;
	temp    = *pCurrent;

	for (pWalker  = pCurrent - 1;
		 pWalker >= list && !located;)
      if (strcmp(temp.states, pWalker->states) < 0)
	     {
          *(pWalker + 1) = *pWalker;
		  pWalker--;
	     }
	  else
         located = true;
	*(pWalker + 1) = temp;
   }

return;
}


/*=============================== printData ================================
Pre: unsorted list
POst:sorted  list, average temperature
*/
void printData(INFO list[])
{
    FILE *spData;
char states[50], cities[50];
int tempt;

//open file
spData = fopen("in.txt", "w");

if (spData != NULL)
{
	fprintf(spData,"%s %s %d", states, cities, tempt);

printf("Sucessfully open in.txt\n");
fclose(spData);
}
else
{
	printf("Could not open in.txt\n");
}
return;
}

my program is printing garbage now i know that my printData is wrong can any one suggest a way to fix it
attachment under is the instruction and the file

You never set a value to these variables "states, cities, tempt" and then you print them out; Why do you think it will NOT print garbage.

Tim S.

Please all just stick to one thread:
program execute but does not write to the file? please help!!!