first semester files

1st-Semester-Fall-2021/CSNP/SigFigCalc/SigFigCalc.cpp

@@ -0,0 +1,29 @@
+#include <iostream>
+#include <string>
+
+using namespace std;
+
+int main()
+{
+    string num;
+    cin >> num;
+
+    
+    int decimal = num.find( '.' );
+
+    //remove decimal point
+    if (  decimal >= 0)
+        num.erase( '.' );
+    else
+        //remove trailing zeroes
+        while (num.back() == '0')
+            num = num.substr( num.length() - 1 );
+
+    //remove leading zeros
+    while (num.front() == '0')
+        num = num.substr(1);
+
+    cout << num.length();
+
+    return 0;
+}