1 files changed, 20 insertions, 0 deletions
diff --git a/graphs/piscine/int_sqrt/int_sqrt.c b/graphs/piscine/int_sqrt/int_sqrt.c
new file mode 100644
index 0000000..4b2e5db
--- /dev/null
+++ b/graphs/piscine/int_sqrt/int_sqrt.c
@@ -0,0 +1,20 @@
+int int_sqrt(int n)
+{
+    if (n < 0)
+    {
+        return -1;
+    }
+
+    if (n == 0 || n == 1)
+    {
+        return n;
+    }
+
+    int i;
+    for (i = 1; i * i < n; i++)
+    {
+        continue;
+    }
+
+    return i - (i * i != n);
+}