Part 3 and 4 are done

Author: daniel-saeedi

.DS_Store

@@ -0,0 +1,54 @@
+def sum_calculator(numbers,x) :
+    sum_ = 0
+    for idx,bit in enumerate(x) : 
+        number = numbers[idx]
+        if bit == 1: 
+            sum_ += number
+    return sum_
+
+def main():
+    n = int(input())
+    numbers = list()
+    for x in input().split():
+        x = int(x)
+        numbers.append(x)
+    max = input()
+    i = 0
+    sum_zero = 0
+    zero_list = list()
+    numbers = numbers[::-1]
+    j = 0
+    x_max = [0] * n
+    for element in max[::-1]:
+        element = int(element)
+        if numbers[j] > 0 and element == 0 :
+            i += 1
+            sum_zero += numbers[j]
+            zero_list.append(j)
+        elif numbers[j] > 0 and element == 1 :
+            if(sum_zero > numbers[j]) :
+                for test in zero_list :
+                    x_max[test] = 1
+                zero_list = list()
+                zero_list.append(j)
+                i = 1
+                sum_zero = numbers[j]
+            else : 
+                x_max[j] = 1
+        elif numbers[j] <= 0 and element == 1:
+            if(i > 0) :
+                sum_zero = 0
+                for test in zero_list :
+                    x_max[test] = 1
+                zero_list = list()
+                i = 0
+            x_max[j] = 0
+        j += 1
+    
+    # Printing the results
+    t = len(x_max) - 1
+    while t >= 0 :
+        print(x_max[t], end='')
+        t -= 1
+    print("\n" + str(sum_calculator(numbers,x_max)))
+main()