Initial data commit

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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 72d218235f
commit f23f22d71c
199087 changed files with 3378941 additions and 0 deletions

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import std.stdio;
void vanEck(int firstIndex, int lastIndex) {
int[int] vanEckMap;
int last = 0;
if (firstIndex == 1) {
writefln("VanEck[%d] = %d", 1, 0);
}
for (int n = 2; n <= lastIndex; n++) {
int vanEck = last in vanEckMap ? n - vanEckMap[last] : 0;
vanEckMap[last] = n;
last = vanEck;
if (n >= firstIndex) {
writefln("VanEck[%d] = %d", n, vanEck);
}
}
}
void main() {
writeln("First 10 terms of Van Eck's sequence:");
vanEck(1, 10);
writeln;
writeln("Terms 991 to 1000 of Van Eck's sequence:");
vanEck(991, 1000);
}