feat: Initial commit

Laboratorio 1/EsempioIO.c

@@ -0,0 +1,43 @@
+#include <stdio.h>
+int main()
+{
+    FILE *fp_read, *fp_write;
+    char file_char, choice;
+    if ((fp_read = fopen("../Guide.txt", "r")) == NULL)
+    {
+        printf("Error opening file\n");
+        return 1;
+    }
+    if ((fp_write = fopen("../Output.txt", "w")) == NULL)
+    {
+        printf("Error opening file\n");
+        return 2;
+    }
+    printf("Print on console (C) or on file (F):");
+    choice = getchar();
+    while (!feof(fp_read))
+    {
+        file_char = fgetc(fp_read);
+        if (!feof(fp_read))
+        {
+            switch (choice)
+            {
+            case 'C':
+                printf("\nChar printed on the console: %c",
+                       file_char);
+                break;
+            case 'F':
+                fputc(file_char, fp_write);
+                printf("\nChar saved on file: ");
+                putchar(file_char);
+                break;
+            default:
+                printf("Wrong choice\n");
+                return 3;
+            }
+        }
+    }
+    fclose(fp_read);
+    fclose(fp_write);
+    return 0;
+}

Laboratorio 1/Operations.txt

@@ -0,0 +1,4 @@
++ 15.225 30.51
+- 42.1 10.01
+* 0.62 2.4
+/ 5.0 2.5

Laboratorio 1/Results.txt

@@ -0,0 +1,4 @@
++ 45.74
+- 32.09
+* 1.49
+/ 2.00

Laboratorio 1/TestAmbiente.c

@@ -0,0 +1,12 @@
+#include <stdio.h>
+int main(void)
+{
+    int x, y;
+    float z;
+    printf("Insert an integer number:");
+    scanf("%d", &x);
+    y = 3;
+    z = (float)(x) / y;
+    printf("%d/%d=%.3f\n", x, y, z);
+    return 0;
+}

Laboratorio 1/calcolaaree.c

@@ -0,0 +1,40 @@
+#include <stdio.h>
+#define P 3.14
+
+int main()
+{
+    char fig;
+    char dato;
+    float area;
+    float num;
+    scanf("%c %c%f", &fig, &dato, &num);
+
+    if (fig == 'Q')
+    {
+        if (dato == 'D')
+        {
+            area = num * num / 2;
+        }
+        else if (dato == 'L')
+        {
+            area = num * num;
+        }
+
+        printf("Area quadrato = %f\n", area);
+    }
+    else if (fig == 'C')
+    {
+        if (dato == 'D')
+        {
+            area = P * num * num / 4;
+        }
+        else if (dato == 'R')
+        {
+            area = P * num * num;
+        }
+
+        printf("Area cerchio = %f\n", area);
+    }
+
+    return 0;
+}

Laboratorio 1/calcolatrice.c

@@ -0,0 +1,43 @@
+#include <stdio.h>
+int main()
+{
+    char operation;
+    float op1, op2, res;
+
+    operation = getchar();
+    if (scanf("%f %f", &op1, &op2) != 2) {
+        printf("Error: Invalid input\n");
+        return 2;
+    }
+
+    switch (operation)
+    {
+    case '+':
+        res = op1 + op2;
+        break;
+
+    case '-':
+        res = op1 - op2;
+        break;
+
+    case '*':
+        res = op1 * op2;
+        break;
+
+    case '/':
+        if (op2 == 0) {
+            printf("Error: divide by zero\n");
+            return 2;
+        }
+        res = op1 / op2;
+        break;
+    
+    default:
+        printf("Error: invalid operation\n");
+        return 1;
+    }
+
+    printf("%c %f\n", operation, res);
+
+    return 0;
+}

Laboratorio 1/calcolatricefile.c

@@ -0,0 +1,61 @@
+#include <stdio.h>
+int main()
+{
+
+    FILE *fp_read, *fp_write;
+    char operation;
+    float op1, op2, res;
+
+    if ((fp_read = fopen("./Operations.txt", "r")) == NULL)
+    {
+        printf("Error opening file\n");
+        return 1;
+    }
+    if ((fp_write = fopen("./Results.txt", "w")) == NULL)
+    {
+        printf("Error opening file\n");
+        return 2;
+    }
+
+    while (!feof(fp_read))
+    {
+        fscanf(fp_read, " %c %f %f", &operation, &op1, &op2);
+        if (!feof(fp_read))
+        {
+            switch (operation)
+            {
+            case '+':
+                res = op1 + op2;
+                break;
+
+            case '-':
+                res = op1 - op2;
+                break;
+
+            case '*':
+                res = op1 * op2;
+                break;
+
+            case '/':
+                if (op2 == 0)
+                {
+                    printf("Error: divide by zero\n");
+                    return 3;
+                }
+                res = op1 / op2;
+                break;
+
+            default:
+                printf("Error: invalid operation\n");
+                return 1;
+            }
+
+            fprintf(fp_write, "%c %.2f\n", operation, res);
+        }
+    }
+
+    fclose(fp_read);
+    fclose(fp_write);
+
+    return 0;
+}