Thread: Printing a graph with data read in from a file

So I actually did this assignment awhile back, and now I have to combine the code into a new program, but when I went to test it out I realized it wasn't working. When I had submitted it I know it was working but now I can't get the bars themselves to print out, I'm thinking maybe I missed something and didn't save it? Here's the data that it should read in:

Code:

10 13
1.131232 0.000183
2.872323 0.000312
4.233291 0.000422
5.823823 0.000367
6.464139 0.000316
6.554324 0.000275
6.001023 0.000245
5.293232 0.0
7.012323 0.000612
7.013323 0.000583

Here's what it should look like:

Code:

What file stores the car data?
sample.txt

95                                      
90                                      
85                                      
80                                      
75                                      
70                                      
65                                      
60                                      
55                                      
50                                      
45                                      
40                                      
35                                      
30        *****                         
25        ***** *****                   
20        ***** *****                   
15        ***** *****                   
10  ***** ***** *****                   
5   ***** ***** *****                   
0   ***** ***** *****                   
    -----------------------------------
    00-05 05-10 10-15 15-20 20-25 25-30

and this is what i've got:

Code:

#include<stdio.h>
#define PI 3.14159

void printGraph(int min, double milespg[]){ 
	
	int x=100, a, b;
	while(x != 0){x -= 5; printf("%-4d", x);
		for(a = 0; a <= (min-1); a++){
            for(b = 0; b < 5; b++){
				
				if(milespg[a]>=x)
					putchar('*');
				else
					putchar(' ');}
			putchar(' ');}
		putchar('\n');}
	
	printf("    -----------------------------------\n");
	printf("    00-05 05-10 10-15 15-20 20-25 25-30\n");
}

int main(){
    
    int min, in, a = 0, y;
    double totalrev = 0, totalgas = 0, rev, gas;
    char file[20];
    FILE *fp;
    double mpg[300];
	
	printf("What file stores the car data?\n");
    scanf("%s", &file);
	
    fp = fopen(file, "r");
	
    fscanf(fp, "%d", &min);
    fscanf(fp, "%d", &in);
    
    min = min / 5;
    while(a <= (min-1)){
		for(y = 1; y != 301; y++){
			fscanf(fp, "%lf %lf", &rev, &gas);
			totalrev = totalrev + rev;
			totalgas = totalgas + gas;
		}
		mpg[a] = (PI * in * 2 * totalrev / 63360) / totalgas;
		a++;
		totalrev = 0, totalgas = 0;
	}
    
	printGraph(min, mpg);
	fclose(fp);
	system("PAUSE");
	return 0;
}

Can anyone see why it wouldn't be printing out the *'s?

Nevermind I figured it out, Xcode is weird and I had the file in the wrong place