finished cls06

src/cls06/Makefile

@@ -0,0 +1,14 @@
+include ../common.mk
+
+PROJECT_NAME:=cls06
+
+TGTS:=$(patsubst %.c,%,$(wildcard *.c))
+
+all: $(TGTS)
+
+%: %.c
+	@mkdir -p $(BUILD_PATH)/$(PROJECT_NAME)
+	$(CC) $(CFLAGS) $^ -o $(BUILD_PATH)/$(PROJECT_NAME)/$@
+
+clean:
+	$(RM) -drf $(BUILD_PATH)/$(PROJECT_NAME)

src/cls06/a1.c

@@ -0,0 +1,37 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#define BUFF_SZ 256
+
+int str_chnum(const char s[], int c) {
+    int idx = 0;
+    int n = 0;
+    
+    while (s[idx] != '\0' && idx < BUFF_SZ) {
+        if (s[idx] == (char)c) {
+            n++;
+        }
+        idx++;
+    }
+
+    return n;
+}
+
+int main(void) {
+    char *buff = (char*)calloc(sizeof(char), BUFF_SZ);
+    char query = 0;
+
+    printf("Input String: ");
+    fgets(buff, BUFF_SZ, stdin);
+
+    printf("Input Search Character: ");
+    scanf("%c", &query);
+
+    int cnt = str_chnum(buff, query);
+
+    printf("Found %d \'%c\'\n", cnt, query, buff);
+
+    free(buff);
+
+    return 0;
+}

src/cls06/a2.c

@@ -0,0 +1,42 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#define BUFF_SZ 256
+
+void put_stringn(const char s[], int n) {
+    if (n < 0) return;
+
+    int idx = 0;
+
+    for (int i = 0; i < n; i++) {
+        idx = 0;
+        while (s[idx] != '\0' && idx < BUFF_SZ) {
+            if (s[idx] == '\n') {
+                idx++;
+                continue;
+            }
+            putchar(s[idx]);
+            idx++;
+        }
+    }
+
+    putchar('\0');
+}
+
+int main(void) {
+    char *buff = (char*)calloc(sizeof(char), BUFF_SZ);
+    int n = 0;
+
+    printf("Input String: ");
+    fgets(buff, BUFF_SZ, stdin);
+
+    printf("Input Repeat Num: ");
+    scanf("%d", &n);
+
+    put_stringn(buff, n);
+    putchar('\n');
+
+    free(buff);
+
+    return 0;
+}