From 77716bd8df2b4b68f8ca42e4ff33177aff307b1f Mon Sep 17 00:00:00 2001
From: "exercism-solutions-syncer[bot]"
 <211797793+exercism-solutions-syncer[bot]@users.noreply.github.com>
Date: Tue, 31 Mar 2026 13:14:40 +0000
Subject: [PATCH] [Sync Iteration] c/binary/1

---
 solutions/c/binary/1/binary.c | 17 +++++++++++++++++
 solutions/c/binary/1/binary.h |  8 ++++++++
 2 files changed, 25 insertions(+)
 create mode 100644 solutions/c/binary/1/binary.c
 create mode 100644 solutions/c/binary/1/binary.h

diff --git a/solutions/c/binary/1/binary.c b/solutions/c/binary/1/binary.c
new file mode 100644
index 0000000..2e91f5d
--- /dev/null
+++ b/solutions/c/binary/1/binary.c
@@ -0,0 +1,17 @@
+#include "binary.h"
+#include <string.h>
+
+int convert(const char *input)
+{
+    int    i = 0;
+    int    number = 0; 
+    
+    while (input[i] != '\0')
+    {
+        if (input[i] != '0' && input[i] != '1')
+            return (INVALID);
+        number = number * 2 + (input[i] - '0');
+        i++;
+    }
+    return (number);
+}
\ No newline at end of file
diff --git a/solutions/c/binary/1/binary.h b/solutions/c/binary/1/binary.h
new file mode 100644
index 0000000..19743d3
--- /dev/null
+++ b/solutions/c/binary/1/binary.h
@@ -0,0 +1,8 @@
+#ifndef BINARY_H
+#define BINARY_H
+
+#define INVALID -1
+
+int convert(const char *input);
+
+#endif