Chef and The String of Digits
The Chef has written all the numbers from 1 to 109 consecutively on a board. Let P be the long string obtained by concatenating the numbers written on the board consecutively. Given below are the first few digits of the long string P. 12345678910111213141516171819202122232425262728293031323334353637383940.... Given another string Q, he is wondering whether Q is a substring of the string P. For e
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solution.cppC++17
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