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author | Nguyễn Gia Phong <mcsinyx@disroot.org> | 2020-06-06 21:33:13 +0700 |
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committer | Nguyễn Gia Phong <mcsinyx@disroot.org> | 2020-06-06 21:33:13 +0700 |
commit | 2f674dc80f0382f1c3178f435714960734dc9d3c (patch) | |
tree | 2abba7e4ec72bd16f58f7375126144d3fd9f4bca /2ndary/12/TP-ThanhHoá-2009/bai1.pas | |
parent | b2d80610db6beda38573890ed169815e495bc663 (diff) | |
download | cp-2f674dc80f0382f1c3178f435714960734dc9d3c.tar.gz |
Reorganize stuff from secondary school
Diffstat (limited to '2ndary/12/TP-ThanhHoá-2009/bai1.pas')
-rw-r--r-- | 2ndary/12/TP-ThanhHoá-2009/bai1.pas | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/2ndary/12/TP-ThanhHoá-2009/bai1.pas b/2ndary/12/TP-ThanhHoá-2009/bai1.pas new file mode 100644 index 0000000..511d074 --- /dev/null +++ b/2ndary/12/TP-ThanhHoá-2009/bai1.pas @@ -0,0 +1,39 @@ +var + prime: array[1..4999] of boolean; + n, i, k, a, j: word; + f: text; + +begin + fillchar(prime, sizeof(prime), true); + prime[1] := false; + + for i := 2 to 70 do + if prime[i] then + for j := 2 to 4999 div i do + prime[i * j] := false; + + for i := 1 to 4999 do + if prime[i] then + writeln(i); + + assign(f, 'BAI1.INP'); + reset(f); + + readln(f, n, k); + + j := 0; + for i := 1 to n do + begin + read(f, a); + if (a < k) and + prime[a] then + inc(j) + end; + + close(f); + + assign(f, 'BAI1.OUT'); + rewrite(f); + writeln(f, j); + close(f) +end. |