PROJECTENGRAM

01 - SOLVE ME FIRST

Tags: #◇Computer Science #◇CSALGCM #◇Algorithms and Complexity #◇HackerRank #◇Fool Arcana #◇Warmup

Solve Me First

[!tip] Purpose
This is a warmup problem designed to confirm that your development environment is configured correctly and that you can read input, call a function, and produce output on HackerRank.

◇Problem Description

Complete the solveMeFirst function so that it computes the sum of two integers.

Input Format:

  • First line: integer a
  • Second line: integer b

Output Format:

  • Print the integer sum a + b

Constraints: 1≤a,b≤10001 \leq a, b \leq 1000

Sample:

InputOutput
2
3		5

◇Approach & Intuition

This problem is entirely trivial by design — it's a "Hello World" for HackerRank. The stub already provides the main() function that reads the two integers and calls solveMeFirst(). You only need to fill in the body.

The key insight is to get comfortable with:

  1. How HackerRank templates work (the boilerplate main does all the I/O for you)
  2. How to return a value from a function

Strategy: Return a + b. That's it.

◇Complexity Analysis

Complexity
TimeO(1)O(1) — two reads, one addition, one write. No loops.
SpaceO(1)O(1) — only two integer variables stored.

◇Original Stub (HackerRank Template)

『』
CPP
#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;

int solveMeFirst(int a, int b) {
 // Hint: Type return a+b; below:
  
}

int main() {
  int num1, num2;
  int sum;
  cin>>num1>>num2;
  sum = solveMeFirst(num1,num2);
  cout<<sum;
  return 0;
}

◇Full Solution

『』
CPP
#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;

int solveMeFirst(int a, int b) {
  // Hint: Type return a+b; below:
  return a + b;
}

int main() {
  int num1, num2;
  int sum;
  cin>>num1>>num2;
  sum = solveMeFirst(num1,num2);
  cout<<sum;
  return 0;
}

◇References & Navigation