trailing zeros

Author: noobCoderVP

10_trailingZeros.cpp

@@ -0,0 +1,20 @@
+#include <bits/stdc++.h>
+using namespace std;
+
+int trailingZeros(int &n)
+{
+    int total = 0;
+    while (n > 0)
+    {
+        n /= 5;
+        total += n;
+    }
+    return total;
+}
+
+int main()
+{
+    int n;
+    cin >> n;
+    cout << trailingZeros(n) << endl;
+}

10_trailingZeros.exe

@@ -0,0 +1,11 @@
+def trailingZeros(n: int):
+    total = 0
+    while n > 0:
+        n //= 5
+        total += n
+    return total
+
+
+if __name__ == "__main__":
+    n = int(input())
+    print(trailingZeros(n))

10_trailingZeros.py

@@ -0,0 +1,21 @@
+#include <bits/stdc++.h>
+using namespace std;
+
+unsigned long long MOD = 1000000007;
+
+unsigned long long bitStrings(int &n)
+{
+    unsigned long long answer = 1;
+    while (n--)
+    {
+        answer = (answer % MOD) * 2;
+    }
+    return answer % MOD;
+}
+
+int main()
+{
+    int n;
+    cin >> n;
+    cout << bitStrings(n) << endl;
+}

11_coinPiles.cpp

@@ -0,0 +1,11 @@
+def bitStrings(n: int):
+    answer = 1
+    for i in range(n):
+        answer = (answer % (1e9 + 7)) * 2
+
+    return answer % (1e9 + 7)
+
+
+if __name__ == "__main__":
+    n = int(input())
+    print(int(bitStrings(n)))