Change graph description format

Also adds a `genrand' program for testing purposes.

1 files changed, 19 insertions, 0 deletions

diff --git a/genrand.c b/genrand.c
new file mode 100644
index 0000000..47362eb
--- /dev/null
+++ b/genrand.c
@@ -0,0 +1,19 @@
+#include <stdio.h>
+#include <math.h>
+
+int main(int argc, char *argv[])
+{
+    if(argc != 2)
+    {
+        fprintf(stderr, "Usage: %s EDGES\n", argv[0]);
+        return 1;
+    }
+
+    int edges = atoi(argv[1]);
+
+    srand(time(0));
+
+    printf("a b\n");
+    for(int i = 0; i < edges; i++)
+        printf("%c %c 1\n", 'a' + rand() % 26, 'a' + rand() % 26);
+}