leetcode: Address readability of a few cases, and fix 283

The for loop utilized in 283 was improperly structured as 'start'
was no declared as the value to index.

Also, make the other cases more readable.

Signed-off-by: RJ Trujillo <certifiedblyndguy@gmail.com>

leetcode/src/1189.c

@@ -10,15 +10,15 @@ int maxNumberOfBalloons(char * text){
     int i, min_counter_ballons;
     
     for (char *ptr = text; *ptr; ptr++) {
-        if(*ptr == 'b') {
+        if (*ptr == 'b') {
             count_letters[0]++;
-        }else if(*ptr == 'a') {
+        } else if(*ptr == 'a') {
             count_letters[1]++;
-        }else if(*ptr == 'l') {
+        } else if (*ptr == 'l') {
             count_letters[2]++;
-        }else if(*ptr == 'o') {
+        } else if(*ptr == 'o') {
             count_letters[3]++;
-        }else if(*ptr == 'n') {
+        } else if(*ptr == 'n') {
             count_letters[4]++;
         }
     }
@@ -29,10 +29,10 @@ int maxNumberOfBalloons(char * text){
     
     /* Max number of times which we can write ballon is equal to min value of letters on count_letter */
     min_counter_ballons = count_letters[0];
-    for(i = 1; i < 5; i++){
-        if(count_letters[i] < min_counter_ballons)
+    for (i = 1; i < 5; i++) {
+        if (count_letters[i] < min_counter_ballons)
             min_counter_ballons = count_letters[i];
     }
     
     return min_counter_ballons;
-}
+}

leetcode/src/283.c

@@ -1,10 +1,12 @@
-void moveZeroes(int* nums, int numsSize){
-    int i, start = 0;
+void moveZeroes(int* nums, int numsSize) {
+    int i = 0, start = 0;
+
     for (i = 0; i < numsSize; i++) {
-        if(nums[i])
+        if (nums[i])
             nums[start++] = nums[i];
     }
-    for(;start < numsSize; start++) {
+
+    for (start; start < numsSize; start++) {
         nums[start] = 0;
     }
 }

leetcode/src/617.c

@@ -6,7 +6,7 @@ struct TreeNode * newNode (int item) {
 }
 
 struct TreeNode* mergeTrees(struct TreeNode* t1, struct TreeNode* t2){
-    if(t1 == NULL && t2 == NULL)
+    if (t1 == NULL && t2 == NULL)
         return NULL;
     int item = (t1 == NULL ? 0 : t1->val) + (t2 == NULL ? 0 : t2->val);
     struct TreeNode *node = newNode(item);

leetcode/src/700.c

@@ -11,10 +11,12 @@
 struct TreeNode* searchBST(struct TreeNode* root, int val){
     if(!root)
         return NULL;
-    if(root->val == val)
+
+    if (root->val == val) {
         return root;
-    else if (root->val > val)
+    } else if (root->val > val) {
         return searchBST(root->left, val);
-    else
+    } else {
         return searchBST(root->right, val);
+    }
 }

leetcode/src/704.c

@@ -2,12 +2,13 @@ int search(int* nums, int numsSize, int target){
     int low = 0, high = numsSize - 1;
     while (low <= high) {
         int mid = low + (high - low) / 2;
-        if (target > nums[mid])
+        if (target > nums[mid]) {
             low = mid + 1;
-        else if (target < nums[mid])
+        } else if (target < nums[mid]) {
             high = mid - 1;
-        else
+        } else {
             return mid;
+        }
     }
     return -1;
 }

leetcode/src/771.c

@@ -1,18 +1,18 @@
-// for strlen( )
-#include<string.h>
+// for strlen()
+#include <string.h>
 
-int numJewelsInStones(char * j, char * s){
-	// as strlen is O(n), store it once rather than using it in for loop
-    int cnt[500],lens=strlen(s),lenj=strlen(j),sol=0;
-    memset(cnt,0,sizeof(cnt));
+int numJewelsInStones(char * j, char * s) {
+    // as strlen is O(n), store it once rather than using it in for loop
+    int cnt[500], lens = strlen(s), lenj = strlen(j), sol = 0;
+    memset(cnt, 0, sizeof(cnt));
 
     // lookup to know which character occurs in j
-    for(int i=0;i<lenj;i++)
+    for (int i = 0; i < lenj; i++)
         cnt[j[i]]++;
 
     // count the characters in s
-    for(int i=0;i<lens;i++)
-        sol+=cnt[s[i]];
+    for (int i = 0; i < lens; i++)
+        sol += cnt[s[i]];
 
     return sol;
 }

leetcode/src/82.c

@@ -1,10 +1,12 @@
 struct ListNode* deleteDuplicates(struct ListNode* head) {
-    if(head == NULL)
+    if (head == NULL)
         return NULL;
-    if(head->next && head->val == head->next->val) {
+
+    if (head->next && head->val == head->next->val) {
         /* Remove all duplicate numbers */
-        while(head->next && head->val == head->next->val)
+        while (head->next && head->val == head->next->val) {
             head = head -> next;
+        }
         return deleteDuplicates(head->next);
     } else {
         head->next = deleteDuplicates(head->next);

leetcode/src/905.c

@@ -10,13 +10,13 @@
  *
  * Note: The returned array must be malloced, assume caller calls free().
  */
-int* sortArrayByParity(int* A, int ASize, int* returnSize){
+int* sortArrayByParity(int* A, int ASize, int* returnSize) {
     int *retArr = malloc(ASize * sizeof(int));
     int oddIndex = ASize - 1;
     int evenIndex = 0;
     *returnSize = ASize;
     for (int i = 0; i < ASize; i++) {
-        if(A[i] % 2 == 0) {
+        if (A[i] % 2 == 0) {
             retArr[evenIndex] = A[i];
             evenIndex++;
         } else {

leetcode/src/938.c

@@ -1,9 +1,9 @@
 int rangeSumBST(struct TreeNode* root, int L, int R){
-    if (root == NULL)
+    if (root == NULL) {
         return 0;
-    else if (root->val >= L && root->val <= R)
+    } else if (root->val >= L && root->val <= R) {
         return root->val + rangeSumBST(root->left, L, R) + rangeSumBST(root->right, L, R);
-    else
+    } else {
         return rangeSumBST(root->left, L, R) + rangeSumBST(root->right, L, R);
-
+    }
 }

leetcode/src/977.c

@@ -1,10 +1,10 @@
-/* 1st way: Using 2 pointer */
+/* 1st way: Using 2 pointers */
 int* sortedSquares(int* A, int ASize, int* returnSize){
     int i, start = 0, end = ASize - 1;
     int *res = malloc(ASize * sizeof(int));
     *returnSize = ASize;
     for (i = ASize - 1; i >= 0; i--) {
-        if(abs(A[start]) > A[end]) {
+        if (abs(A[start]) > A[end]) {
             res[i] = A[start] * A[start];
             start++;
         } else {
@@ -19,7 +19,8 @@ int* sortedSquares(int* A, int ASize, int* returnSize){
 int cmpval(const void *a, const void *b) {
     return *(int *)a - *(int *)b;
 }
-int* sortedSquares(int* A, int ASize, int* returnSize){
+
+int* sortedSquares(int* A, int ASize, int* returnSize) {
     int *res = malloc(ASize * sizeof(int));
     for (int i = 0; i < ASize; i++)
         res[i] = A[i] * A[i];