From 9e28e4c7b67c54229df11d355047ac8a88ea1817 Mon Sep 17 00:00:00 2001
From: Nguyễn Gia Phong <vn.mcsinyx@gmail.com>
Date: Sun, 15 Dec 2019 15:09:13 +0700
Subject: Normalize pathname

---
 ntu/smaca.c | 61 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100644 ntu/smaca.c

(limited to 'ntu/smaca.c')

diff --git a/ntu/smaca.c b/ntu/smaca.c
new file mode 100644
index 0000000..711040a
--- /dev/null
+++ b/ntu/smaca.c
@@ -0,0 +1,61 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+long gcd(long a, long b)
+{
+	long c;
+	while (b) {
+		c = a % b;
+		a = b;
+		b = c;
+	}
+	return a;
+}
+
+int main()
+{
+	char m, n, i, j, l, val0 = 0, *val;
+	long *k, *h, x, g;
+
+	scanf("%hhd %hhd", &m, &n);
+
+	val = malloc(n);
+	for (i = 0; i < n; i++)
+		val[i] = 1;
+
+	k = malloc(m * 4);
+	for (i = 0; i < m; i++)
+		scanf("%ld", &k[i]);
+
+	h = malloc(m * 4);
+	for (i = 0; i < n; i++) {
+		memcpy(h, k, m * 4);
+
+		for (j = 0; j < m; j++) {
+			scanf("%ld", &x);
+			for (l = 0; l < m && x > 1; l++) {
+				g = gcd(h[l], x);
+				h[l] /= g;
+				x /= g;
+			}
+			if (x > 1) {
+				val[i] = 0;
+				for (j++; j < m; j++)
+					scanf("%ld", &x);
+				break;
+			}
+		}
+		
+		if (val[i])
+			val0++;
+	}
+
+	printf("%hhd\n", val0);
+	for (i = 0; i < n; i++)
+		if (val[i])
+			printf("%hhd ", i + 1);
+	puts("\b");
+
+	return 0;
+}
-- 
cgit 1.4.1