1D Arrays in C Hackerrank Solution - C Language Code : #include < stdio.h > #include < string.h > #include < math.h > #include < stdlib.h > int main() { int n; scanf( "%d" ,&n); int arr[n]; int sum = 0 ; for ( int i= 0 ;i<n;i++){ scanf( "%d" ,&arr[i]); sum = sum + arr[i]; } printf( "%d" ,sum); return 0 ; }