1 files changed, 28 insertions, 0 deletions
diff --git a/graphs/piscine/freq_analysis/freq_analysis.c b/graphs/piscine/freq_analysis/freq_analysis.c
new file mode 100644
index 0000000..c60d7a6
--- /dev/null
+++ b/graphs/piscine/freq_analysis/freq_analysis.c
@@ -0,0 +1,28 @@
+#include <stdio.h>
+
+int find_rank(int h[26], int min)
+{
+    int res = 0;
+    for (int i = 0; i < 26; i++)
+    {
+        res += h[i] > h[min] || (h[i] == h[min] && i < min);
+    }
+    return res;
+}
+
+void freq_analysis(const char text[], const char table[])
+{
+    int h[26] = { 0 };
+    for (int i = 0; text[i]; i++)
+    {
+        h[text[i] - 'A']++;
+    }
+
+    for (int j = 0; j < 26; j++)
+    {
+        if (h[j] != 0)
+        {
+            printf("%c %c\n", j + 'A', table[find_rank(h, j)]);
+        }
+    }
+}