init commit

archive/algorithm/leetcode/two-sum.c

@@ -0,0 +1,34 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+/**
+ * https://leetcode-cn.com/problems/two-sum/description/
+ * 两数之和
+ */
+int *twoSum(int *nums, int numsSize, int target)
+{
+    int *s = malloc(sizeof(int) * 2);
+    memset(s, 0, sizeof(int) * 2);
+    for (int i = 0; i < numsSize; i++)
+    {
+        int tmp = target - nums[i];
+        for (int n = i + 1; n < numsSize; n++)
+        {
+            if (nums[n] == tmp)
+            {
+                s[0] = i;
+                s[1] = n;
+                return s;
+            }
+        }
+    }
+    return 0;
+}
+int main()
+{
+    int nums[] = {2, 7, 11, 15};
+    int *s = twoSum(nums, sizeof(nums) / 4, 9);
+    printf("%d,%d\n", s[0], s[1]);
+    getchar();
+    return 0;
+}