Tagged
• Flow Chart
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# Problem Statement

```1Problem Description : 2Write Algorithm, Flowchart and Program to Find Sum of First n Integers 3
4
5Example 1 : 6    Input  : n = 4 7    Output : 10 8    Explanation : First 4 integers are 1,2,3 and 4 so sum is 1+2+3+4 = 10 9
10
11Example 2 : 12    Input  : n = 10 13    Output : 55 14    Explanation : First 10 integers are 1,2,3,..., 10 15    so sum is = 1+2+3+...+10 = 55 ```

# Algorithm

`1Input : input number n 2Step 1: Start 3Step 2: Read number n Step 3: Declare sum to 0 and i to 1 4Step 4: Repeat steps 5 to 7 until i <= n 5Step 5: update sum as sum = sum + i 6Step 6: increment i 7Step 7: Print sum 8Step 8: Stop 9Output: sum `

# Code Implementation

1. Java
2. C

```1import java.util.Scanner;2
3public class SumOfFirstNNumbers {4
5    public static void main(String[] args) {6        Scanner sc = new Scanner(System.in);7
8        // Read n9        System.out.print("Enter n : ");10        int n = sc.nextInt();11
12        // Declare sum and counter variable i13        int sum = 0;14        int i;15
16        // loop continues until i<=n17        for (i = 1; i <= n; i++) {18            // update sum19            sum = sum + i;20        }21        // Print sum22        System.out.printf("Sum of First %d numbers is %d \n", n, sum);23    }24}```

`1Output 1 : 2Enter n : 4 3Sum of First 4 numbers is 10`

• Flow Chart
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