Работы по программированию

2026-07-28 09:56:54 +03:00
parent b85155ff95
commit 8602b7e845
73 changed files with 4090 additions and 0 deletions
@@ -0,0 +1,178 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int t19_a() {
+    FILE *fp;
+    int num, count_positive = 0, count_negative = 0;
+    int sum_positive = 0, sum_negative = 0;
+    float avg_positive = 0.0, avg_negative = 0.0;
+
+    fp = fopen("netext_a.bin", "rb"); // Îòêðûòèå áèíàðíîãî ôàéëà äëÿ ÷òåíèÿ
+
+    if (fp == NULL) {
+        printf("Îøèáêà îòêðûòèÿ ôàéëà!\n");
+        return 1;
+    }
+
+    while (fread(&num, sizeof(char), 1, fp) == 1) { // ×òåíèå ïî 1 öåëîìó ÷èñëó
+        if (num > 0) {
+            count_positive++;
+            sum_positive += num;
+        } else if (num < 0) {
+            count_negative++;
+            sum_negative += num;
+        }
+    }
+
+    fclose(fp); // Çàêðûòèå ôàéëà
+
+    if (count_positive > 0) {
+        avg_positive = (float)sum_positive / count_positive;
+    }
+    if (count_negative > 0) {
+        avg_negative = (float)sum_negative / count_negative;
+    }
+
+    printf("Number of positive numbers: %d\n", count_positive);
+    printf("Number of negative numbers: %d\n", count_negative);
+    printf("Sum of positive numbers: %d\n", sum_positive);
+    printf("Sum of negative numbers: %d\n", sum_negative);
+    printf("Arithmetic mean of positive numbers: %.2f\n", avg_positive);
+    printf("Arithmetic mean of negative numbers: %.2f\n", avg_negative);
+
+    return 0;
+}
+
+int t19_b() {
+    FILE *fp;
+    int num, count_positive = 0, count_negative = 0;
+    int sum_positive = 0, sum_negative = 0;
+    float avg_positive = 0.0, avg_negative = 0.0;
+
+    fp = fopen("netext_b.bin", "rb"); // Îòêðûòèå áèíàðíîãî ôàéëà äëÿ ÷òåíèÿ
+
+    if (fp == NULL) {
+        printf("Îøèáêà îòêðûòèÿ ôàéëà!\n");
+        return 1;
+    }
+
+    while (fread(&num, sizeof(short), 1, fp) == 1) { // ×òåíèå ïî 1 öåëîìó ÷èñëó
+        if (num > 0) {
+            count_positive++;
+            sum_positive += num;
+        } else if (num < 0) {
+            count_negative++;
+            sum_negative += num;
+        }
+    }
+
+    fclose(fp); // Çàêðûòèå ôàéëà
+
+    if (count_positive > 0) {
+        avg_positive = (float)sum_positive / count_positive;
+    }
+    if (count_negative > 0) {
+        avg_negative = (float)sum_negative / count_negative;
+    }
+
+    printf("Number of positive numbers: %d\n", count_positive);
+    printf("Number of negative numbers: %d\n", count_negative);
+    printf("Sum of positive numbers: %d\n", sum_positive);
+    printf("Sum of negative numbers: %d\n", sum_negative);
+    printf("Arithmetic mean of positive numbers: %.2f\n", avg_positive);
+    printf("Arithmetic mean of negative numbers: %.2f\n", avg_negative);
+
+    return 0;
+}
+int t19_v() {
+    FILE *fp;
+    int num, count_positive = 0, count_negative = 0;
+    int sum_positive = 0, sum_negative = 0;
+    float avg_positive = 0.0, avg_negative = 0.0;
+
+    fp = fopen("netext_v.bin", "rb"); // Îòêðûòèå áèíàðíîãî ôàéëà äëÿ ÷òåíèÿ
+
+    if (fp == NULL) {
+        printf("Îøèáêà îòêðûòèÿ ôàéëà!\n");
+        return 1;
+    }
+
+    while (fread(&num, sizeof(int), 1, fp) == 1) { // ×òåíèå ïî 1 öåëîìó ÷èñëó
+        if (num > 0) {
+            count_positive++;
+            sum_positive += num;
+        } else if (num < 0) {
+            count_negative++;
+            sum_negative += num;
+        }
+    }
+
+    fclose(fp); // Çàêðûòèå ôàéëà
+
+    if (count_positive > 0) {
+        avg_positive = (float)sum_positive / count_positive;
+    }
+    if (count_negative > 0) {
+        avg_negative = (float)sum_negative / count_negative;
+    }
+
+    printf("Number of positive numbers: %d\n", count_positive);
+    printf("Number of negative numbers: %d\n", count_negative);
+    printf("Sum of positive numbers: %d\n", sum_positive);
+    printf("Sum of negative numbers: %d\n", sum_negative);
+    printf("Arithmetic mean of positive numbers: %.2f\n", avg_positive);
+    printf("Arithmetic mean of negative numbers: %.2f\n", avg_negative);
+
+    return 0;
+}
+int t20() {
+    FILE *fp;
+    int num, count_positive = 0, count_negative = 0;
+    int sum_positive = 0, sum_negative = 0;
+    float avg_positive = 0.0, avg_negative = 0.0;
+
+    fp = fopen("netext2.bin", "rb"); // Îòêðûòèå áèíàðíîãî ôàéëà äëÿ ÷òåíèÿ
+
+    if (fp == NULL) {
+        printf("Îøèáêà îòêðûòèÿ ôàéëà!\n");
+        return 1;
+    }
+
+    while (fread(&num, sizeof(char), 1, fp) == 1) { // ×òåíèå ïî 1 öåëîìó ÷èñëó
+        if (num > 0) {
+            count_positive++;
+            sum_positive += num;
+        } else if (num < 0) {
+            count_negative++;
+            sum_negative += num;
+        }
+    }
+
+    fclose(fp); // Çàêðûòèå ôàéëà
+
+    if (count_positive > 0) {
+        avg_positive = (float)sum_positive / count_positive;
+    }
+    if (count_negative > 0) {
+        avg_negative = (float)sum_negative / count_negative;
+    }
+
+    printf("Number of positive numbers: %d\n", count_positive);
+    printf("Number of negative numbers: %d\n", count_negative);
+    printf("Sum of positive numbers: %d\n", sum_positive);
+    printf("Sum of negative numbers: %d\n", sum_negative);
+    printf("Arithmetic mean of positive numbers: %.2f\n", avg_positive);
+    printf("Arithmetic mean of negative numbers: %.2f\n", avg_negative);
+
+    return 0;
+}
+void main() {
+	printf("a\n");
+	t19_a();
+	printf("b\n");
+	t19_b();
+	printf("v\n");
+	t19_v();
+	printf("20\n");
+	t20();
+}