C

learnc/learnc1.c

@@ -0,0 +1,33 @@
+	#include <stdio.h>
+
+	int main() {
+		float average;
+        int grades[2][5];
+		int i;
+		int j;
+
+		grades[0][0] = 80;
+		grades[0][1] = 70;
+		grades[0][2] = 65;
+		grades[0][3] = 89;
+		grades[0][4] = 90;
+
+		grades[1][0] = 85;
+		grades[1][1] = 80;
+		grades[1][2] = 80;
+		grades[1][3] = 82;
+		grades[1][4] = 87;
+
+		/* TODO: complete the for loop with appropriate terminating conditions */
+		for (i = 0; i < 2; i++) {
+			average = 0;
+			for (j = 0; j < 5; j++) {
+				average += grades[i][j];
+			}
+
+			/* TODO: compute the average marks for subject i */
+			printf("The average marks obtained in subject %d is: %.2f\n", i, average);
+		}
+
+		return 0;
+	}

learnc/learnc10.c

@@ -0,0 +1,23 @@
+#include <stdio.h>
+
+typedef struct {
+  char * name;
+  int age;
+} person;
+
+/* function declaration */
+void birthday(person * p) {
+
+    p->age++;
+}
+int main() {
+  person john;
+  john.name = "John";
+  john.age = 27;
+
+  printf("%s is %d years old.\n", john.name, john.age);
+  birthday(&john);
+  printf("Happy birthday! %s is now %d years old.\n", john.name, john.age);
+
+  return 0;
+}

learnc/learnc11.c

@@ -0,0 +1,19 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+typedef struct {
+  int x;
+  int y;
+} point;
+
+int main() {
+  point * mypoint;
+    mypoint = (point *)malloc(sizeof(point));
+    
+  mypoint->x = 10;
+  mypoint->y =5 ;
+  printf("mypoint coordinates: %d, %d\n", mypoint->x, mypoint->y);
+
+  free(mypoint);
+  return 0;
+}

learnc/learnc2.c

@@ -0,0 +1,17 @@
+#include <stdio.h>
+
+void guessNumber(int guess) {
+    
+    if (guess == 555) {
+    printf("Correct. You guessed it!\n");
+     } if (guess < 555) {
+    printf("Your guess is too low.\n");
+    } if (guess > 555) {
+    printf("Your guess is too high.\n");
+}
+}
+int main() {
+    guessNumber(500);
+    guessNumber(600);
+    guessNumber(555);
+}

learnc/learnc3.c

@@ -0,0 +1,18 @@
+#include <stdio.h>
+#include <string.h>
+int main() {
+    char first_name[5] = "John";
+    char last_name[4] = "Boe";
+  char name[100];
+
+  last_name[0] = 'B';
+  sprintf(name, "%s %s", first_name, last_name);
+  if (strncmp(name, "John Boe", 100) == 0) {
+      printf("Done!\n");
+  }
+  name[0]='\0';
+  strncat(name,first_name,4);
+  strncat(name,last_name,20);
+  printf("%s\n",name);
+  return 0;
+}

learnc/learnc4.c

@@ -0,0 +1,13 @@
+#include <stdio.h>
+
+int main() {
+  int array[] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
+  int factorial = 1;
+  int i;
+
+  for (i = 0; i < 10; i++) {
+    factorial *= array[i];
+  }
+  
+  printf("10! is %d.\n", factorial);
+}

learnc/learnc5.c

@@ -0,0 +1,22 @@
+#include <stdio.h>
+
+int main() {
+    int array[] = {1, 7, 4, 5, 9, 3, 5, 11, 6, 3, 4};
+    int i = 0;
+
+    while (i < 10) {
+        if (array[i] < 5){
+        i++;
+        continue;
+        }
+        
+        if (array[i] < 10) {
+        printf("%d\n", array[i]);
+        i++;
+        if (array[i] > 10){
+        break;
+        }
+    }
+}
+    return 0;
+}

learnc/learnc6.c

@@ -0,0 +1,17 @@
+#include <stdio.h>
+
+void print_big(int number);
+
+int main() {
+  int array[] = { 1, 11, 2, 22, 3, 33 };
+  int i;
+  for (i = 0; i < 6; i++) {
+    print_big(array[i]);
+  }
+  return 0;
+}
+void print_big(int number) {  
+  if(number > 10) {
+    printf("%d is big\n",number);
+}
+}

learnc/learnc7.c

@@ -0,0 +1,13 @@
+   #include <stdio.h>
+   int sum (int num) {
+    static int total = 0;
+    total += num;
+    return total;
+   }
+
+   int main() {
+       printf("%d ",sum(55));
+       printf("%d ",sum(45));
+       printf("%d ",sum(50));
+       return 0;
+   }

learnc/learnc8.c

@@ -0,0 +1,15 @@
+#include <stdio.h>
+
+int main() {
+  int n = 10;
+
+  int * pointer_to_n = &n;
+  n += 1;
+
+  /* testing code */
+  if (pointer_to_n != &n) return 1;
+  if (*pointer_to_n != 11) return 1;
+
+  printf("Done!\n");
+  return 0;
+}

learnc/learnc9.c

@@ -0,0 +1,15 @@
+#include <stdio.h>
+
+typedef struct {
+    char * name;
+    int age;
+} person;
+
+int main() {
+    person john;
+
+    /* testing code */
+    john.name = "John";
+    john.age = 27;
+    printf("%s is %d years old.", john.name, john.age);
+}