11 lines
317 B
Text
11 lines
317 B
Text
# Given the balance in the prior year, compute the new balance in year n.
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# Input: { e: m, c: n } representing m*e + n
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def new_balance(n):
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if n == 0 then {e: 1, c: -1}
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else {e: (.e * n), c: (.c * n - 1) }
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end;
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def balance(n):
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def e: 1|exp;
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reduce range(0;n) as $i ({}; new_balance($i) )
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| (.e * e) + .c;
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