setw manipulator in c++

[sarah]

hi!
i have a problem in a programe of c++ having the output like below by using setw manipulator,but i am unable to get the outpit in the desired format.

1
1 2
1 2 3
1 2 3 4
1 2 3 4 5

[mmonnin]

Whats the desired format and what does it look like now?

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