Moved kattis from Uni repo

kattis/problems/01_11_23/keystrokes/1.in

@@ -0,0 +1 @@
+iLnLnLeLb

kattis/problems/01_11_23/keystrokes/2.in

@@ -0,0 +1 @@
+arnarLLLBBun

kattis/problems/01_11_23/keystrokes/3.in

@@ -0,0 +1 @@
+password123

kattis/problems/01_11_23/keystrokes/main.c

@@ -0,0 +1,60 @@
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#define MAX 1000000
+
+int transform(char *src, int len, char *dst) {
+  // Traverse the string
+  int i = len;
+  int j = 0;
+  while (i > 0) {
+    // printf("%c\n", src[i]);
+    // If we encounter a backspace, we need to remove the last character
+    // from the destination string
+    if (src[i] == 'B') {
+      if (j > 0) {
+        j--;
+      }
+    } else if (src[i] == 'L') {
+      // If we encounter a left button, we have to move back once
+      if (j > 0) {
+        j--;
+      }
+    } else if (src[i] == 'R') {
+      // If we encounter a right button, we have to move forward once
+      if (j < len) {
+        j++;
+      }
+    }
+
+    else {
+      // Otherwise, we add the character to the destination string
+      dst[j] = src[i];
+      j++;
+    }
+    i--;
+  }
+  return j;
+}
+
+void printStr(char *s, int len) {
+  for (int i = 0; i < len; ++i) {
+    printf("%c", s[i]);
+  }
+  printf("\n");
+}
+
+int main(int argc, char **argv) {
+
+  char s[MAX];
+  scanf("%s", s);
+  int len = strlen(s);
+  printf("%d\n", len);
+  char corrected[MAX];
+
+  int newLen = transform(s, len, corrected);
+  printf("%d\n", newLen);
+  printStr(corrected, newLen);
+  return 0;
+}

kattis/problems/01_11_23/keystrokes/main.c.orig

@@ -0,0 +1,58 @@
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#define MAX 1000000
+
+int transform(char *src, int len, char *dst) {
+  // Traverse the string
+  int i = 0;
+  int j = 0;
+  while (i < len) {
+    // If we encounter a backspace, we need to remove the last character
+    // from the destination string
+    if (src[i] == 'B') {
+      if (j > 0) {
+        j--;
+      }
+    } else if (src[i] == 'L') {
+      // If we encounter a left button, we have to move back once
+      if (j > 0) {
+        j--;
+      }
+    } else if (src[i] == 'R') {
+      // If we encounter a right button, we have to move forward once
+      if (j < len) {
+        j++;
+      }
+    }
+
+    else {
+      // Otherwise, we add the character to the destination string
+      dst[j] = src[i];
+      j++;
+    }
+    i++;
+  }
+  return j;
+}
+
+void printStr(char *s, int len) {
+  for (int i = 0; i < len; ++i) {
+    printf("%c", s[i]);
+  }
+  printf("\n");
+}
+
+int main(int argc, char **argv) {
+
+  char s[MAX];
+  scanf("%s", s);
+  int len = strlen(s);
+  char corrected[MAX];
+
+  int newLen = transform(s, len, corrected);
+  printf("%d\n", newLen); 
+  printStr(corrected, newLen);
+  return 0;
+}

kattis/problems/01_11_23/keystrokes/main.py

@@ -0,0 +1,22 @@
+string = input()
+string_list = []
+cursor = 0
+for char in string:
+  # If 'L' found in string, we move the cursor to the left
+  if char == 'L':
+    if cursor > 0:
+      cursor -= 1
+  # If 'R' found in string, we move the cursor to the right
+  elif char == 'R':
+    if cursor < len(string):
+      cursor += 1
+  # If 'B' found in string, we delete the character to the left of the cursor
+  elif char == 'B':
+    del string_list[cursor - 1]
+    cursor -= 1
+  # If any other character found in string, we insert it to the left of the cursor
+  else:
+    string_list.insert(cursor, char)
+    cursor += 1
+# Print only the new string, without the initial one
+print(''.join(string_list))