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2022 IOQM India
7
IOQM 2022 P7
IOQM 2022 P7
Source:
March 8, 2022
IOQM
Problem Statement
Find the number of maps
f
:
{
1
,
2
,
3
}
→
{
1
,
2
,
3
,
4
,
5
}
f: \{1,2,3\} \rightarrow \{1,2,3,4,5\}
f
:
{
1
,
2
,
3
}
→
{
1
,
2
,
3
,
4
,
5
}
such that
f
(
i
)
≤
f
(
j
)
f(i) \le f(j)
f
(
i
)
≤
f
(
j
)
whenever
i
<
j
i < j
i
<
j
.
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