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function fact1(n) {
if (n > 0)
return n * fact1(n - 1);
else
return 1
}
function fact2(n) {
return n > 0 ? n * fact2(n - 1) : 1
}
function fact3(n) {
var res = 1;
for (var i = 2; i <= n; i=i+1)
res = res * i;
return res;
}
print("fact1(12) = ", fact1(12))
print("fact2(12) = ", fact2(12))
print("fact3(12) = ", fact3(12))
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