Question

Question :
Write a C Program to find the
Missing number from from Given N' arrav​

Answer 1

Answer:

#include <stdio.h> int pickMissNumber(int *arr1, int ar_size) { int i, sum = 0, n = ar_size + 1; for(i = 0; i < ar_size; i++) { sum = sum + arr1[i]; } return (n*(n+1))/2 - sum; } int main() { int i; int arr1[] = {1, 3, 4, 2, 5, 6, 9, 8}; int ctr = sizeof(arr1)/sizeof(arr1[0]); printf("The given array is : "); for(i = 0; i < ctr; i++) { printf("%d ", arr1[i]); } printf("\n"); printf("The missing number is : %d \n", pickMissNumber(arr1, ctr)); return 0; }

Copy

Sample Output:

The given array is : 1 3 4 2 5 6 9 8