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authorNguyễn Gia Phong <vn.mcsinyx@gmail.com>2019-12-28 21:16:58 +0700
committerNguyễn Gia Phong <vn.mcsinyx@gmail.com>2019-12-28 21:21:44 +0700
commit0887d8f96950a060a122e14ed2981182ff1eb37d (patch)
tree68be7a59c323c1fd901455ffae8f21874c4bb4c6 /usth/ICT2.1/labwork/1/Bonus.c
parente461df7573c2b7b7e26c965d8cf2d8e175d67378 (diff)
downloadcp-0887d8f96950a060a122e14ed2981182ff1eb37d.tar.gz
[usth/ICT2.1] Algorithm and Data Structures
Diffstat (limited to 'usth/ICT2.1/labwork/1/Bonus.c')
-rw-r--r--usth/ICT2.1/labwork/1/Bonus.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/usth/ICT2.1/labwork/1/Bonus.c b/usth/ICT2.1/labwork/1/Bonus.c
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+++ b/usth/ICT2.1/labwork/1/Bonus.c
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+/*
+ * Read an integer from stdin and print its prime factors to stdout
+ * This is free and unencumbered software released into the public domain.
+ */
+
+#include <stdio.h>
+
+int main()
+{
+	unsigned n, m = 0;
+
+	scanf("%u", &n);
+
+	for (unsigned i = 2; i * i <= n; ++i)
+		while (n % i == 0) {
+			printf(m++ ? " %u" : "%u", i);
+			n /= i;
+		}
+	if (n != 1)
+		printf(m++ ? " %u" : "%u", n);
+	if (m)
+		putchar(10);
+
+	return 0;
+}