Moved kattis from Uni repo

kattis/problems/21_11_23/modulo/1.in

@@ -0,0 +1,10 @@
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10

kattis/problems/21_11_23/modulo/main.c

@@ -0,0 +1,14 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(int argc, char **argv) {
+  int counter = 0;
+  for (int i=0; i<10; i++) {
+    int n;
+    scanf("%d", &n);
+    if (n % 42 == 0) {
+      counter++;
+    }
+  }
+  printf("%d\n", 10-counter);
+}