└── progam
    ├── 1D arrays in C.txt
    ├── Array reversal.txt
    └── Printing pattern on loops.txt


/progam/1D arrays in C.txt:
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 1 | #include <stdlib.h> 
 2 | int main() {
 3 |     int n;
 4 |     scanf("%d", &n); 
 5 |     int *arr = (int*)malloc(n * sizeof(int));
 6 |     if (arr == NULL) {
 7 |         printf("Memory allocation failed.\n");
 8 |         return 1; 
 9 |     }
10 |     for (int i = 0; i < n; i++) {
11 |         scanf("%d", &arr[i]);
12 |     }
13 |     int sum = 0;
14 |     for (int i = 0; i < n; i++) {
15 |         sum += arr[i];
16 |     }
17 |      printf("%d\n", sum);
18 |      free(arr);
19 |     
20 |     return 0;
21 | }


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/progam/Array reversal.txt:
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 1 | #include <stdio.h>
 2 | void reverseArray(int arr[], int n) {
 3 |     for (int i = 0; i < n / 2; i++) {
 4 |         int temp = arr[i];
 5 |         arr[i] = arr[n - i - 1];
 6 |         arr[n - i - 1] = temp;
 7 |     }
 8 | }
 9 | int main() {
10 |     int n;
11 |     scanf("%d", &n); 
12 |     int arr[n]; 
13 |     for (int i = 0; i < n; i++) {
14 |         scanf("%d", &arr[i]);
15 |     }
16 |     reverseArray(arr, n);
17 |     for (int i = 0; i < n; i++) {
18 |         printf("%d ", arr[i]);
19 |     }
20 |     return 0;
21 | }


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/progam/Printing pattern on loops.txt:
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 1 | #include <stdio.h>
 2 | void print_pattern(int n) {
 3 |     int size = 2 * n - 1;
 4 |     for (int i = 0; i < size; i++) {
 5 |         for (int j = 0; j < size; j++) {
 6 |             int value = n - ((i < n ? i : size - 1 - i) < (j < n ? j : size - 1 - j) ?
 7 |                              (i < n ? i : size - 1 - i) : (j < n ? j : size - 1 - j));
 8 |             printf("%d ", value);
 9 |         }
10 |         printf("\n");
11 |     }
12 | }
13 | 
14 | int main() {
15 |     int n;
16 |     scanf("%d", &n);
17 |     print_pattern(n);
18 |     return 0;
19 | }


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