Impl working solution

src/main.c

@@ -1,3 +1,73 @@
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+
+typedef struct SimpleVector {
+    char *data;
+    unsigned int capacity;
+    unsigned int size;
+} SimpleVector;
+
+SimpleVector sv_init(unsigned int capacity) {
+    SimpleVector sv;
+    memset(&sv, 0, sizeof(SimpleVector));
+
+    sv.data = (char*)malloc(capacity * sizeof(char));
+    sv.capacity = capacity;
+
+    return sv;
+}
+
+void sv_push(SimpleVector *sv, char value) {
+    if(!sv->data || sv->capacity == 0) {
+        return;
+    } else if(sv->size == sv->capacity) {
+        char *new_data = (char*)malloc(sv->capacity * 2 * sizeof(char));
+        memcpy(new_data, sv->data, sizeof(char) * sv->size);
+        free(sv->data);
+        sv->data = new_data;
+        sv->capacity *= 2;
+    }
+
+    sv->data[sv->size++] = value;
+}
+
+void sv_cleanup(SimpleVector sv) {
+    if(sv.data) {
+        free(sv.data);
+    }
+}
+
+void sv_print(SimpleVector sv) {
+    for(unsigned int i = 0; i < sv.size; ++i) {
+        printf("%c ", sv.data[i]);
+    }
+    printf("\n");
+}
+
+void sv_print_rotations(SimpleVector sv) {
+    for(unsigned int i = 0; i < sv.size; ++i) {
+        printf("  ");
+        for(unsigned int j = i; j < i + sv.size; ++j) {
+            printf("%c ", sv.data[j % sv.size]);
+        }
+        printf("\n");
+    }
+}
+
 int main(int argc, char **argv) {
+    SimpleVector sv = sv_init(32);
+
+    --argc; ++argv;
+    while(argc > 0) {
+        sv_push(&sv, argv[0][0]);
+        --argc; ++argv;
+    }
+    printf("Got vector: ");
+    sv_print(sv);
+    printf("Rotations:\n");
+    sv_print_rotations(sv);
+
+    sv_cleanup(sv);
     return 0;
 }