update

src/P1969/P1969.cpp

@@ -1,9 +1,7 @@
 #include <iostream>
 #include <type_traits>
 
-
 using ull = unsigned long long;
-static ull a, b, ans, n;
 
 template<class T>
 class ReadNumber{
@@ -20,6 +18,7 @@ public:
         }
         while(isdigit(c)){
             n=n*10+(c-'0');
+            c=getchar();
         }
         t = n*w;
         return *this;
@@ -30,6 +29,8 @@ static ReadNumber<ull> readull;
 static auto &is = readull;
 static auto &os = std::cout;
 
+static ull a, b, ans, n;
+
 int main(){
     is>>n;
     for(size_t i{0};i<n;i++){