// Online C++ compiler to run C++ program online
/******************************************************************************
Online C++ Compiler.
Code, Compile, Run and Debug C++ program online.
Write your code in this editor and press "Run" button to compile and execute it.
*******************************************************************************/
// { Driver Code Starts
#include <bits/stdc++.h>
using namespace std;
// } Driver Code Ends
//arr1,arr2 : the arrays
// n, m: size of arrays
vector<int> findUnion(int arr1[], int arr2[], int n, int m)
{
//Your code here
//return vector with correct order of elements
vector<int>g;
int i=0;
for( i=0;i<n&&i<m;i++){
if(arr1[i]==arr2[i]&&arr1[i-1]!=arr1[i]&&arr2[i-1]!=arr2[i])
g.push_back(arr1[i]);
else if(arr1[i]<arr2[i]){
for(int j=0;j<g.size();j++)
if(g[j]>arr1[j]&&g[j-1]!=arr1[j])
g.insert(g.begin()+j,arr1[j]);
for(int j=0;j<g.size();j++)
if(g[j]>arr2[j]&&g[j-1]!=arr2[j])
g.insert(g.begin()+j,arr2[j]);
}
else if(arr1[i]>arr2[i]){
for(int j=0;j<g.size();j++)
if(g[j]>arr2[j]&&g[j-1]!=arr2[j])
g.insert(g.begin()+j,arr2[j]);
for(int j=0;j<g.size();j++)
if(g[j]>arr1[j]&&g[j-1]!=arr1[j])
g.insert(g.begin()+j,arr1[j]);
}
}
if(i<n){
while(i<n)
for(int j=0;j<g.size();j++)
if(g[j]>arr1[j]&&g[j-1]!=arr1[j])
g.insert(g.begin()+j,arr1[j]);
}
if(i<m){
while(i<m)
for(int j=0;j<g.size();j++)
if(g[j]>arr2[j]&&g[j-1]!=arr2[j])
g.insert(g.begin()+j,arr2[j]);
}
return g;
}
// { Driver Code Starts.
int main() {
int N, M;
cin >>N >> M;
int arr1[N];
int arr2[M];
for(int i = 0;i<N;i++){
cout<<"Enetr arry 1";
cin >> arr1[i];
}
for(int i = 0;i<M;i++){
cout<<"Enetr array 2";
cin >> arr2[i];
}
vector<int> ans = findUnion(arr1,arr2, N, M);
for(int i: ans)cout<<i<<' ';
cout << endl;
return 0;
} // } Driver Code Ends
Write, Run & Share C++ code online using OneCompiler's C++ online compiler for free. It's one of the robust, feature-rich online compilers for C++ language, running on the latest version 17. Getting started with the OneCompiler's C++ compiler is simple and pretty fast. The editor shows sample boilerplate code when you choose language as C++ and start coding!
OneCompiler's C++ online compiler supports stdin and users can give inputs to programs using the STDIN textbox under the I/O tab. Following is a sample program which takes name as input and print your name with hello.
#include <iostream>
#include <string>
using namespace std;
int main()
{
string name;
cout << "Enter name:";
getline (cin, name);
cout << "Hello " << name;
return 0;
}
C++ is a widely used middle-level programming language.
When ever you want to perform a set of operations based on a condition If-Else is used.
if(conditional-expression) {
//code
}
else {
//code
}
You can also use if-else for nested Ifs and If-Else-If ladder when multiple conditions are to be performed on a single variable.
Switch is an alternative to If-Else-If ladder.
switch(conditional-expression){
case value1:
// code
break; // optional
case value2:
// code
break; // optional
......
default:
code to be executed when all the above cases are not matched;
}
For loop is used to iterate a set of statements based on a condition.
for(Initialization; Condition; Increment/decrement){
//code
}
While is also used to iterate a set of statements based on a condition. Usually while is preferred when number of iterations are not known in advance.
while (condition) {
// code
}
Do-while is also used to iterate a set of statements based on a condition. It is mostly used when you need to execute the statements atleast once.
do {
// code
} while (condition);
Function is a sub-routine which contains set of statements. Usually functions are written when multiple calls are required to same set of statements which increases re-usuability and modularity. Function gets run only when it is called.
return_type function_name(parameters);
function_name (parameters)
return_type function_name(parameters) {
// code
}