If there are 1 to 100 Numbers in array of 101 elements.
Which is the easy way to find repeated number?
Answers were Sorted based on User's Feedback
Answer / vadivelt
1.Get i/p of 101 elements and add all the nos.And say the
result of that Addition is 'sum'.
2.We all know that n(n+1)/2 is formula to calculate the
addition of 'n' numbers.
if n = 100 then n(n+1)/2 give addtion of 1....100.
so say total = n(n+1)/2;
3.Now 'sum' holds the addition of 1....101 nos
And 'total' holds the addition of 1....100 nos
So the repeated no would be.,
Result = sum - total;
Equalent Code is.,
int i, n, sum = 0, a, Total;
printf("ENTER SIZE OF ARRAY:\n");
printf("\nENTER ELEMENTS OF ARRAY:\n");
for(i = 0; i<n; i++)
sum = sum + a[i];
n = n-1;
Total = (n *(n+1) /2);
printf("\nREPEATED NO: %d",sum - Total);
|Is This Answer Correct ?||38 Yes||6 No|
Answer / rahul
Binary Tree. But their exists better solution
|Is This Answer Correct ?||2 Yes||2 No|
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