Skip to main content

Featured

C Program to Solve Two Sum Using Brute Force (With Algorithm & Output)

 Introduction The Two Sum problem is a popular coding interview question where we must find two indices of an array whose values add up to a given target. This program demonstrates a simple brute-force solution in C using nested loops and dynamic memory allocation. Problem Statement Given an integer array and a target value, return the indices of the two numbers such that they add up to the target. Each input has exactly one solution, and the same element cannot be used twice. The result should return the indices, not the values. If no solution exists, return NULL.  Algorithm / Logic Explanation Start the program. Traverse the array using a loop from index 0 to numsSize - 1 . Inside this loop, use another loop starting from i + 1 to numsSize - 1 . For every pair (i, j) , check if nums[i] + nums[j] == target . If condition becomes true: Allocate memory for 2 integers using malloc() . Store indices i and j . Set returnSize = 2 . Return the result poi...
Post a Comment
Read more
Labels

Diamond pattern in C

C Program: Diamond Star Pattern

🔷 C Program: Diamond Star Pattern

#include<stdio.h>
int main()
{
    int num;
    printf("Enter the number:\n");
    scanf("%d",&num);

    // Upper Half
    for(int i=1; i<=num; i++)
    {
        for(int k=num; k>=i; k--)
        {
            printf(" ");
        }
        for(int j=i; j>=1; j--)
        {
            printf("* ");
        }
        printf("\n");
    }

    // Lower Half
    for(int i=num; i>=1; i--)
    {
        for(int k=num; k>=i; k--)
        {
            printf(" ");
        }
        for(int j=1; j<=i; j++)
        {
            printf("* ");
        }
        printf("\n");
    }

    return 0;
}

📘 Explanation:

This C program prints a full diamond star pattern. It first constructs the top half of the diamond using an upright pyramid of stars with leading spaces for alignment. The bottom half is constructed using an inverted pyramid.

- The outer loops run for `num` lines each for the top and bottom halves. - The inner loops handle spacing and star printing. - Spacing ensures the stars are centered, forming a symmetric diamond shape.

🔍 Sample Output:

Enter the number:
4
    * 
   * * 
  * * * 
 * * * * 
 * * * * 
  * * * 
   * * 
    *

🏷️ Keywords:

C star pattern, diamond pattern in C, full diamond program, half pyramid in C, inverted pyramid, star shape printing in C, C loop practice

Labels:

Comments

Post a Comment

Popular Posts

🌙