From cbb74a8c010ef59c5bf3f043e3d25b3d260dd84f Mon Sep 17 00:00:00 2001
From: "Mr. Sam" <samuel@yakubos.org>
Date: Wed, 15 Jul 2026 06:41:46 +0100
Subject: Go back to main.c

---
 Makefile |  4 ++--
 main.c   | 81 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 83 insertions(+), 2 deletions(-)
 create mode 100644 main.c

diff --git a/Makefile b/Makefile
index a578ad1..cfe7ae6 100755
--- a/Makefile
+++ b/Makefile
@@ -5,9 +5,9 @@ PREFIX = /usr/local
 
 CFLAGS   = -std=c99 -pedantic -Wall -Wno-deprecated-declarations -Os
 
-CC = gcc
+CC = clang
 
-SRC = stats.c
+SRC = main.c
 
 all:
 	${CC} ${CFLAGS} ${SRC} -o  stats
diff --git a/main.c b/main.c
new file mode 100644
index 0000000..81cdc33
--- /dev/null
+++ b/main.c
@@ -0,0 +1,81 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+/* Enums make words into numbers, ergo no magic numbers */
+enum MODE {
+  MODE_MAX,
+  MODE_MIN,
+  MODE_DIFF
+};
+
+void help(void){
+    printf("Usage: stats <numbers>\n");
+    exit(1);
+}
+
+/* ADDING UP ALL THE VALUES */
+long sigma(int argc, char * argv[]) {
+  char *endptr;
+  long sum = 0;
+
+  for (int i = 1; i < argc; i++) {
+
+  sum += strtol(argv[i], &endptr, 10); /* convert the value to an integer and add it on */
+    if (endptr == argv[i] || *endptr != '\0') {
+        help();
+    } 
+
+  }
+  return sum;
+}
+
+/* FINDING MEAN */
+float average(int n, int sum) {
+  float mean = (float) sum / n;
+  return mean;
+}
+
+/* FINDING THE MIN/MAX/DIFFERENCE */
+long range(int argc, char * argv[], enum MODE mode) {
+  long low  = strtol(argv[1], NULL, 10);
+  long high = low; 
+
+  for (int i = 1; i < argc; i++) {
+    long val = strtol(argv[i], NULL, 10);
+    if (val > high) high = val;
+    if (low > val)  low  = val;
+  }
+
+  /* Check once and return what we need */
+  switch (mode) {
+    case MODE_MAX:
+      return high;
+    case MODE_MIN:
+      return low;
+    case MODE_DIFF:
+      return high - low;
+  }
+  return 1;
+}
+
+int main(int argc, char * argv[]) {
+  if (argc < 2) { /* Stop empty input */
+    help();
+  }
+
+  long     n = argc - 1; /* this is how many numbers there are */
+  long     sum = sigma(argc, argv); /* sigma means adding them all together */
+  float    mean = average(n, sum); /* the sum divided by the however many numbers there are */
+  long     min = range(argc, argv, MODE_MIN); /* Using enums here to use words instead of numbers */
+  long     max = range(argc, argv, MODE_MAX);
+  long     diff = range(argc, argv, MODE_DIFF);
+
+
+  /* align text left for 6 and 12 right */
+  printf("%-6s %12ld\n",   "num:", n);
+  printf("%-6s %12ld\n",   "sum:", sum);
+  printf("%-6s %12.3f\n",  "mean:", mean);
+  printf("%-6s %12ld\n",   "min:", min);
+  printf("%-6s %12ld\n",   "max:", max);
+  printf("%-6s %12ld\n",   "range:", diff);
+}
-- 
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