C Exercises: Find a subarray with given sum from the given array
C Array: Exercise-47 with Solution
Write a program in C to find a subarray with a given sum from the given array.
Sample Solution:
C Code:
#include <stdio.h>
void print(int arr1 [], int i, int j)
{
printf("[%d..%d] -- { ", i, j);
for (int k = i; k <= j; k++)
{
printf("%d ", arr1[k]);
}
printf("}\n");
}
void PickSubarrayFromArray(int arr1[], int n, int sum)
{
for (int i = 0; i < n; i++)
{
int sum_upto = 0;
for (int j = i; j < n; j++)
{
sum_upto += arr1[j];
if (sum_upto == sum)
{
print(arr1, i, j);
}
}
}
}
int main()
{
int arr1[] = { 3, 4, -7, 1, 3, 3, 1, -4 };
int sum = 7;
int ctr = sizeof(arr1)/sizeof(arr1[0]);
int i;
//------------- print original array ------------------
printf("The given array is : ");
for(i = 0; i < ctr; i++)
{
printf("%d ", arr1[i]);
}
printf("\n");
//------------------------------------------------------
PickSubarrayFromArray(arr1, ctr, sum);
return 0;
}
Sample Output:
The given array is : 3 4 -7 1 3 3 1 -4 [0..1] -- { 3 4 } [0..5] -- { 3 4 -7 1 3 3 } [3..5] -- { 1 3 3 } [4..6] -- { 3 3 1 }
Flowchart:

C Programming Code Editor:
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Previous:Write a program in C to find the smallest positive number missing from an unsorted array.
Next: Write a program in C to find if a given integer x appears more than n/2 times in a sorted array of n integers.
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C Programming: Tips of the Day
C Programming - What is the argument for printf that formats a long?
Put an l (lowercased letter L) directly before the specifier.
unsigned long n; long m; printf("%lu %ld", n, m);
Ref : https://bit.ly/3dIwfkP
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