Initial Commit - days 01-12

2020-12-21 14:58:15 +01:00
commit 11844d1904
131 changed files with 16060 additions and 0 deletions
--- a/day06/ex1-c.c
+++ b/day06/ex1-c.c
@@ -0,0 +1,78 @@
+/* ex1-c: Advent2020 game, day 4/game 1
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#define QSIZE	('z'-'a'+1)
+static int Q[QSIZE];
+
+void reset_array(){
+    int i;
+    for (i=0; i<QSIZE; ++i)
+        Q[i]=0;
+}
+
+void print_array()
+{
+    int i;
+    for (i=0; i<QSIZE; i++) {
+        printf("%d ", Q[i]);
+    }
+    printf("\n");
+}
+
+void set_array(str)
+    char *str;
+{
+    for (; *str; str++) {
+	if (*str >= 'a' && *str <= 'z')
+            Q[*str-'a']++;
+    }
+}
+
+int count_array ()
+{
+    int count=0, i;
+    for (i=0; i<QSIZE; ++i) {
+        if (Q[i] > 0)
+            count++;
+    }
+    return count;
+}
+
+void calcgroup(group, count, people)
+    int *group, *count, *people;
+{
+    (*group)++;
+    *count += count_array();
+    *people=0;
+    reset_array();
+}
+
+int main(ac, av)
+    char **av;
+{
+    int people=0, group=0, count=0;
+    char line[80];
+
+    while (fgets(line, sizeof line, stdin)) {
+        if (*line == '\n') {
+            calcgroup(&group, &count, &people);
+            continue;
+        }
+        people++;
+        set_array(line);
+        //sscanf(line, "%[FB]%[RL]", rowstr, colstr);
+        //cur=(str2int(rowstr)<<3) ^ str2int(colstr);
+        //    *(pseats+cur)=1;
+    }
+    //for (; *pseats == 0; ++pseats)
+    //    ;
+    //for (; *pseats == 1; ++pseats)
+    //    ;
+    //printf("%s : lines=%d seat=%ld\n", *av, count, pseats-(int *)seats);
+    calcgroup(&group, &count, &people);
+    printf("%s : groups=%d count=%d\n", *av, group, count);
+    exit (0);
+}