﻿ C++ : Create unique three-digit numbers using 1,2,3,4

# C++ Exercises: Create and display unique three-digit number using 1, 2, 3, 4

## C++ For Loop: Exercise-87 with Solution

Write a C++ program to create and display an original three-digit numbers using 1, 2, 3, 4. Also count how many three-digit numbers are there.

Pictorial Presentation:

Sample Solution:-

C++ Code :

``````#include <iostream>
using namespace std;

void revOfString(const string& a);

int main()
{
string str;
cout << "\n\n Create and display the unique three-digit number using 1, 2, 3, 4:\n";
cout << "-------------------------------------------------------------------\n";
cout<<" The three-digit numbers are: "<<endl;
int amount = 0;
cout<<" ";
for(int i = 1; i <= 4; i++)
{
for(int j = 1; j <= 4; j++)
{
for(int k = 1; k <= 4; k++)
{
if(k != i && k != j && i != j)
{
amount++;
cout<<i <<j<<k<<" ";
}
}
}
}
cout<<endl<<" Total number of the three-digit-number is: "<< amount<<endl<<endl;
}
``````

Sample Output:

``` Create and display the unique three-digit number using 1, 2, 3, 4:
-------------------------------------------------------------------
The three-digit numbers are:
123 124 132 134 142 143 213 214 231 234 241 243 312 314 321 324 341 34
2 412 413 421 423 431 432
Total number of the three-digit-number is: 24
```

Flowchart:

C++ Code Editor: