what have i to do, if i want that the program always writes for example : 0+1 1+2 3+3 6+4 10+5 15+6 ... because now it just writes 1 3 6 10 15 ... and maybe if it works, can i make then 0+1=1 1+2=3 3+3=6 6+4=10 #include <iostream> using namespace std; int main(){ int i; int sum = 0; for (i = 1; i <= 100; i++){ sum = sum+i; cout<<sum<<endl; } cout<<sum; return 0; }

Answer 1

Just to add on to this, a shorter and alternative to
sum = sum + i

Would be
sum += i

Glad you got it sorted.

Answer 2

this q&a forum is so awesome todays morning i never heared from c++ :^) i love u guys

Answer 3

{
cout<<sum<<"+"<<i<<"=";
sum=sum+i;
cout<<sum<<"\n";
}

Answer 4

THANKS!!!

Answer 5

cout<<sum<<'+'<<i<<'='<<sum+=i<<endl;