# WAP in C that uses a function to calculate the sum of n odd integers

The Program in C that uses a function to calculate the sum of n odd integers is given below:

``````#include <stdio.h>

int sumOdd(int n) {
int sum = 0;
for (int i = 1; i <= n*2; i += 2) {
sum += i;
}
return sum;
}

int main() {
int n;
printf("Enter the value of n: ");
scanf("%d", &n);
printf("The sum of the first %d odd integers is: %d\n", n, sumOdd(n));
return 0;
}
``````

## Output:

Enter the value of n: 56
The sum of the first 56 odd integers is: 3136

## Pro-Tips💡

In this program, the `sumOdd()` function takes an integer as an argument and uses a for loop to calculate the sum of the first n odd integers.

The loop starts with the value 1, and increment it by 2 in each iteration to get the next odd number and add it to the sum.

The main function prompts the user to enter a value of n, then passes it to the `sumOdd()` function, which returns the sum of the first n odd integers.

The program then prints the sum on the screen.

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