Сделал 2 Задание

Second/count_elements.c

@@ -1,18 +1,38 @@
 #include "count_elements.h"
 
-int countElements(FILE * file) {
+double detectNumber(double number, double count) {
-    int current, count;
+    if ((1 - number > INACCURACY) || (number - 5 > INACCURACY)) {
+            return 0;
+    }
+    for (double i = 1.; i < 6; i++) {
+        // printf("%lf ? \n", abs(number - i));
+        if (fabs(number - i) < INACCURACY) return (1 - (int)(fmod(count, pow(10., i)) / pow(10., i - 1))) * pow(10., i - 1);
+    }
+    return 0;
+}
 
-    count = 0;
+double summa(double info_count) {
+    int count = 0.;
 
-    if (fscanf(file, "%d", &current) != 1)
+    for (int i = 0; i < 5; i++) {
+        count += fmod(info_count, 10.);
+        info_count /= 10;
+    }
+    return count;
+}
+
+double countElements(FILE * file) {
+    double current;
+    double count = 100000.;
+
+    if (fscanf(file, "%lf", &current) != 1)
     {
         printf("File is empty!\n");
         return -1;
     }
     do {
-        if (current <= 5 && current >= 1) count++;
+        count += detectNumber(current, count);
-    } while (fscanf(file, "%d", &current) == 1);
+    } while (fscanf(file, "%lf", &current) == 1);
 
-    return count;
+    return summa(count);
 }

Second/count_elements.h

@@ -2,7 +2,12 @@
 #define COUNT_ELEMENTS
 
 #include <stdio.h>
+#include <math.h>
 
-int countElements(FILE * file);
+#define INACCURACY 1.e-10
+
+double detectNumber(double number, double count);
+double summa(double count);
+double countElements(FILE * file);
 
 #endif

Second/input.txt

@@ -1,7 +1,16 @@
-1
+1.5
 2
-3
+2.5
+2
+3.5
 4
-5
+4.5
-6
+4
-5
+4
+4
+4
+4
+4
+5.5
+0.5
+48

Second/main.c

@@ -7,6 +7,6 @@ int main(void) {
     if (file == NULL) {
         return -1;
     }
-    printf("Count of numbers between 1 to 5 is %d", countElements(file));
+    printf("Count of numbers between 1 to 5 is %lf", countElements(file));
     return 0;
 }