1 files changed, 17 insertions, 0 deletions
diff --git a/others/volume1/080.pas b/others/volume1/080.pas
new file mode 100644
index 0000000..599511a
--- /dev/null
+++ b/others/volume1/080.pas
@@ -0,0 +1,17 @@
+var
+  n, i, j: int32;
+  b: array of boolean;
+
+begin
+  readln(n);
+  setlength(b, n + 1);
+  for i := 2 to n do
+    b[i] := true;
+  for i := 2 to trunc(sqrt(n)) do
+    if b[i] then
+      for j := 2 to n div i do
+        b[i * j] := false;
+  for i := 2 to n do
+    if b[i] then
+      writeln(i)
+end.