My output will not write to a file [closed] - c++

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Here is the code i wrote:
#include <stdio.h>
#include<stdlib.h>
int main(void)
{
float x;//the data value
float sum=0.0;//the running total of the values readd
int n=0;//the number of data values read
float cube;
FILE* fin = fopen("sumcubes.in", "r"); /* open for reading */
FILE* fout=fopen("sumcubes.c","w");
while(1){
fscanf(fin,"%f",&x);
if(feof(fin))break;
n++;
cube=x*x*x;
sum=sum+cube;
}
fprintf(fout,"There are %d values in the file:",n);
fprintf(fout,"The sum of cubes of these values is:%f",sum);
fclose(fin);
fclose(fout);
system("sumcubes.in");
system("sumcubes.c");
system("pause");
return 0;
}
I was expecting it would read the values in the file and then cube each value. after cubing each value in file it will get the sum of these cube values. however nothing was printed to the output.

Answer 1

When I ran your code (after Ken Y-N fixed the typo), it worked just fine, except that the three system() calls generated "command not found" error messages. The file sumcubes.c contained the expected results, though why you would give that file a .c extension baffles me. Perhaps the file sumcubes.in is not in your current directory when you are running the executable? When I tried that, I got a segmentation fault, but since you don't check the results of fopen(), if the input file does not exist (or is not in your current directory), anything could happen.