DSA lab: 27-Dec-21
Code implementation for: 1) Print hello world #include <stdio.h> int main() { printf("Hello World"); return 0; } 2) Sum of two number #include <stdio.h> int sum(){ int num1, num2, sum; printf("enter first number:"); scanf("%d", &num1); printf("enter second number:"); scanf("%d", &num2); sum = num1 + num2; printf("sum is: %d", sum); } int main() { sum(); return 0; } 3) Sum of array's elements #include <stdio.h> int main() { int sizeArr; printf("Enter size of arr: "); scanf("%d", &sizeArr); int arr[sizeArr]; printf("Enter elements of arr: "); for(int i=0;i<sizeArr;i++){ scanf("%d", &arr[i]); } int sum=0; // why initialized wit...