More random stuff.

1 files changed, 76 insertions, 0 deletions

diff --git a/split3.c b/split3.c
new file mode 100644
index 0000000..7f2fc18
--- /dev/null
+++ b/split3.c
@@ -0,0 +1,76 @@
+#include <stdio.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+
+int *genccountdict(char *);
+char *nodup(char *, int *);
+char *nnodup(char *, int *);
+char *dup(char *, int *);
+
+int main(int argc, char **argv)
+{
+    int i;
+    if(argc!=2)
+        exit(1);
+
+    char *string = *(argv+1);
+    int *dict = genccountdict(string);
+
+    for(i = 0; i < strlen(string); i++)
+        string[i] = toupper(string[i]);
+
+    printf("nodup: %s\n", nodup(string, dict));
+    printf("nnodup: %s\n", nnodup(string, dict));
+    printf("dup: %s\n", dup(string, dict));
+    return 0;
+}
+
+int *genccountdict(char *input)
+{
+    int *dict = calloc(sizeof(int), 26);
+    int i;
+    for(i=0; i<strlen(input); i++)
+        if(isalpha(input[i]))
+            dict[toupper(input[i])-'A']++;
+    return dict;
+}
+
+char *nodup(char *input)
+{
+    char *output = malloc(strlen(input)+1);
+    int i, outpt = 0;
+
+    for(i=0; i<strlen(input); i++){
+        if(!dict[input[i]-'A']){
+            output[outpt++]=input[i];
+            dict[input[i]-'A'] = 1;
+        }
+    }
+    output[outpt]='\0';
+    return output;
+}
+
+char *nnodup(char *input, int *dict)
+{
+    char *output = malloc(strlen(input)+1);
+    int i, outpt = 0;
+    for(i=0; i<strlen(input); i++)
+        if(dict[input[i]-'A']==1)
+            output[outpt++]=input[i];
+    output[outpt]='\0';
+    return output;
+}
+
+char *dup(char *input, int *dict)
+{
+    char *output = malloc(strlen(input)+1);
+    int i, outpt = 0;
+    for(i=0; i<strlen(input); i++)
+        if(dict[input[i]-'A']>1)
+            output[outpt++]=input[i];
+    output[outpt] = '\0';
+    int ndict[26];
+    memset(ndict, 0, 26*sizeof(int));
+    return nodup(output, ndict);
+}