fork download
copy 
  1. #include<iostream>
  2. using namespace std;
  3.  
  4. int main(){
  5.     int b, a;
  6.     for (a = 0, b = 0; b < 1000;a++){
  7.         cout << b << endl;
  8.         b = (a + 1) + b;
  9.     }
  10.     return 0;
  11. }
Success #stdin #stdout 0s 4268KB
comments ()
stdin
copy 
Standard input is empty
stdout
copy 
0
1
3
6
10
15
21
28
36
45
55
66
78
91
105
120
136
153
171
190
210
231
253
276
300
325
351
378
406
435
465
496
528
561
595
630
666
703
741
780
820
861
903
946
990
https://ideone.com/iFd7ca
language:
C++14 (clang 8.0)
created:
6 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!