This program illustrates the use of the STL equal() algorithm (extended
version) to test whether the integers in a range of integers in one vector
match the integers in another range in a different vector, in the sense of
values in corresponding positions having the same digit sum.
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Here are the contents of v1:
21 13 5
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Here are the contents of v2:
21 22 23 30 31 32
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First we compare the sequence in v1 with the sequence starting at the
beginning of v2, and ask whether they match.
Yes, they match.
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Then we compare the sequence starting at the beginning of v1 with the
sequence starting at the second value of v2 and ask whether they match.
No, they don't match.
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Finally, we compare the sequence starting at the beginning of v1 with the
sequence starting at the second value of v2 and ask whether they match.
Yes, they match.
Press Enter to continue ...