#include<stdio.h>

int main(void)

{

    FILE *fin; 

    fin = fopen("C:/data1.txt", "r"); 

    int x;

    fscanf(fin, "%d", &x);

    printf("x= %d\n",x); 

    fclose(fin); 

}

#include<stdio.h>

int main(void)

{

    char path[10];
    printf ("Please enter the path of the data file eg. C:/data/3ms.txt\n");
    scanf ("%s", path);

    FILE *fin;

    fin = fopen("path", "r");

    int x;

    fscanf(fin, "%d", &x);

    printf("x= %d\n",x);

    fclose(fin);


 }