1 files changed, 43 insertions, 0 deletions
diff --git a/ch2/2-04.c b/ch2/2-04.c
new file mode 100644
index 0000000..3f122bb
--- /dev/null
+++ b/ch2/2-04.c
@@ -0,0 +1,43 @@
+#include <stdio.h>
+
+
+void squeeze_char(char s[], char c) {
+    int i;
+    int j;
+
+    for (i = j = 0; s[i] != '\0'; i++)
+        if (s[i] != c)
+            s[j++] = s[i];
+
+    s[j] = '\0';
+}
+
+
+void squeeze_str(char s1[], char s2[]) {
+    int i;
+
+    for (i = 0; s2[i] != '\0'; ++i)
+        squeeze_char(s1, s2[i]);
+}
+
+
+void squeeze_all(char s1[], char s2[]) {
+    int i;
+    int j;
+    int k;
+
+    for (k = 0; s2[k] != '\0'; ++k) {
+        for (i = j = 0; s1[i] != '\0'; ++i)
+            if (s1[i] != s2[k])
+                s1[j++] = s1[i];
+
+        s1[j] = '\0';
+    }
+}
+
+
+int main() {
+    char squeezed[] = "abracadabra";
+    squeeze_all(squeezed,"abc");
+    printf("%s\n", squeezed);
+}