Heart Rate[statmh]

//
//  main.c
//  HeartRate
//
//  Created by HAMMSASUKE on 3/28/17.
//  Copyright © 2017 HAMMSASUKE. All rights reserved.
//

#include <stdio.h>
#include <stdlib.h>
#include <time.h>

int main(int argc, const char * argv[]) {

    int BPM[50][180];
    int i, j, w, x, y, choice;

    printf("Heart Rate Recording \n(1)Normal (2)Stress (3)Sleepy\nEnter: ");
    scanf("%d", &choice);
    printf("----------------\n");

    srand (time(NULL));

    for (i=0; i<50; i++) {
        printf("Day: %d\n", i+1);
        x = rand() % 16 + 69;
        if(choice==3)x = x-5;
        else if (choice==2)x = x+5;
        else;
        for (j=0; j<180; j++) {
            w = x+4;
            y = rand() % 6 + w;
            printf("%d ", y);
            BPM[i][j]=y;
        }
        printf("\n----------------\n");
    }

    FILE *fp;
    // Modify your path here ...
    fp = fopen("/Users/Admin/Desktop/HR.txt", "w+");
    for (i=0; i<50; i++) {
        fprintf(fp, "Day%d: ", i+1);
        for (j=0; j<180; j++) {
            fprintf(fp, "%d ", BPM[i][j]);
        }
       fprintf(fp, "\n");
    }
     printf("File Exported...\n");
    fclose(fp);

    return 0;
}