gXa's blog

Scanf doubt
By gXa, history, 10 years ago, In English

Can anybody plz ezplain:

for(int i = 1; i <= n; i++) { scanf("%s", a[i] + 1); }

I know this one

for(int i = 1; i <= n; i++) { scanf("%s", a[i] ); }

But I don't know the use of above scanf("%s", a[i] + 1); Plz guide me on this.

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10 years ago, # |
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When you use scanf() you must give a pointer to it. When you use scanf("%d", a[i]+1) it means that you are using 1-based indexing, So the your string is starting from index 1(not 0).

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    10 years ago, # ^ |
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    Can I do the same with strings, what I mean is:

    string st; cin >> (st + 1);

    I know it is does not work but is there any way to do this?

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      10 years ago, # ^ |
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      you can do:
      string st;
      cin >> st;
      st = ((string)" ") + st;

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        10 years ago, # ^ |
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        Thanks

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        10 years ago, # ^ |
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        Can u tell after I perform certain operations, now I want to print original string without initial space given at beginning. What I would do then?

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