Update 'converter.cpp'

do while instead of while, want loop to run at least once.

converter.cpp

@@ -32,9 +32,7 @@ int main() {
     int input;
     Menu();
     cin >> input;
-
-    while (input != 4) {
-
+    do {
         if (input == 1) {
             cout << "Enter temperature in Celsius: ";
             cin >> input;
@@ -55,6 +53,7 @@ int main() {
             C = input;
             cout << setprecision(2) << convertC2K << endl;
         }
+        while (input != 4)
     }
     cout << "\nExiting...";
     return(0);