#include <stdio.h>

#define N 300

int main(int argc, char **argv)
{
	int i, target;	/*local variables*/
	int b[N];		/*the entire array of integers*/
	FILE *sourceFile;
	FILE *destinationFile;

	/* File b.data has the target value on the first line */
	/* The remaining 300 lines of b.data have the values for the b array */
	sourceFile = fopen("b.data", "r");

	/* File found.data will contain the indices of b where the target is */
	destinationFile = fopen("found.data", "w");

	if(sourceFile==NULL) {
		printf("Error: can't access file.c.\n");
		return 1;
	} else if(destinationFile==NULL) {
		printf("Error: can't create file for writing.\n");
		return 1;
	} else {
		/* Read in the target */
		fscanf(sourceFile,"%d", &target);

		/* Read in b array */

		for (i=0; i<N; i++)
		{
			fscanf(sourceFile,"%d", &b[i]);
		}

		/* Search the b array and output the target locations */
		for (i=0; i<N; i++)
		{
			if (b[i] == target)
			{
				fprintf(destinationFile,"%d\n", i+1);
			}
		}

		fclose(sourceFile);
		fclose(destinationFile);
		return 0;
	}

}