change

Author: Dhyaa-km

problem2/Readme.md

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+# Problem 02: Binary to Decimal
+
+Write program that convert binary to decimal value
+Input : 101010
+Output : the equivalent in decimal is : 42
+Problem 03: intersection
+Given two arrays a1 & a2 , you've to return their intersectoins Example :
+a1=[-9,1,2,3,4,0,-2] , a2=[2,8,-1,4]a3=[2,4] or a3=[4,2]

problem2/problem2.c

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+#include <stdio.h>
+#include <math.h>
+
+int main() {
+    int a[] = {1, 0, 1, 0, 1, 0};
+    int value = 0;
+    int cpt = 0;
+
+    for (int i = sizeof(a) / sizeof(a[0]) - 1; i >= 0; i--) {
+        if (a[i] == 1) {
+            value += pow(2, cpt);
+        }
+        cpt++;
+    }
+
+    printf("%d\n", value);
+
+    return 0;
+}