trying to plus each element of the loop over the next element [closed] - c++

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i'm trying to plus each elemnt of the loop result over the next elemnt
Like if i have a loop it gives me the numbers between 1~5 so i need 1+2+3+4+5
I tried below code but it didn't work
#include <iostream>
using namespace std;
int main() {
for (int i =1; i <=50 ;i++){
cout<<i<<" ";
cout<<(i +=i)<<endl;
}
return 0;
}

Answer 1

The variable 'i' is sort of a "control" variable that maintains the count. You are adding 'i' to itself and not actually printing it. If you need to print characters like a '+' you need to use quotation marks, unless they are variables.
The code you probably want to use is -
#include <iostream>
using namespace std;
int main() {
int n = 5;
for (int i=1; i<n; i++){
cout<<i<<"+";
}
cout<<n<<endl;
return 0;
}
Or if you wanted the sum of all the elements, the statement 'i+=1' actually adds 'i' to itself, this is not good as 'i' is your iterator, or a control variable of some sort that maintains your count. You should not operate over it. You will need another variable to hold the sum as you loop through.
You probably want this in this situation -
#include <iostream>
using namespace std;
int main() {
int sum=0;
for(int i=1; i<=5; i++){
sum+=i;
}
cout<<sum<<endl;
return 0;
}