feat: added solution for problem 704

Author: CarlosZoft

0704_binary_search/binary_search.c

@@ -0,0 +1,23 @@
+#include <stdio.h>
+
+int search(int* nums, int numsSize, int target){
+    if(target > nums[numsSize-1] || target < nums[0])return -1;
+    int begin = -1 ,end = numsSize;
+    while(begin < end-1){
+        int half = (begin+end)/2;
+        if(nums[half]<target)begin = half;
+            else end = half;
+    }
+    if(nums[end]==target) return end ;
+    else return -1; 
+}
+
+int main(void) {
+  int test[6] = {-1,0,3,5,9,12};
+  
+  //test 1 - number 2;
+  printf("possible index = %d\n",search(test,6,2));
+  //test 2 - number 9
+  printf("possible index = %d\n",search(test,6,9));
+  return 0;
+}